KNKX Public Radio

Weather With Cliff Mass

Weather With Cliff Mass

Description

University of Washington Professor of Atmospheric Sciences and renowned Seattle weather prognosticator/personality Cliff Mass has joined KNKX’s roster of commentators. "Weather with Cliff Mass", our five-minute feature hosted by KNKX's environment reporter Bellamy Pailthorp, airs every Friday at 9 a.m. following "BirdNote", and repeats twice on Friday afternoons during All Things Considered.

Link: knkx.org

Categories

Science & Medicine

Episodes

Driest November in decades not a worry just yet, but could point to shift toward El Niño

Dec 6, 2019 432

Description:

The dry, cool and sunny conditions that brought extraordinary fall color to the Northwest also have toppled a major record. Seattle charted its driest November in 43 years, with just 1.71 inches of rain – about 26 percent of normal. (Spokane was at 30 percent of normal, with .68). That’s the driest November since 1976 — a “startlingly dry” year that saw about half of last month’s precipitation, says KNKX weather expert Cliff Mass. But the latest dry weather isn’t cause for concern just yet, he stresses. “Never call a winter in mid-December,” Mass says. “I wouldn’t be concerned unless these conditions continue into February.” One key feature is common among the dryness then and now: high pressure over the eastern Pacific. Mass says that was in place 43 years ago, and it has been parked over us this year since November. The pressure forms a ridge aloft that keeps precipitation sparse and weakens weather systems as they come in. “We don’t tend to get the low-pressure systems that bring

‘Saildrones’ could revolutionize ocean weather data collection, improve forecasts

Nov 29, 2019 246

Description:

The National Weather Service relies on a network of buoys to collect real-time data about ocean conditions. But they’re prone to malfunction and expensive to maintain. KNKX weather expert Cliff Mass is working with a company that is offering a potential alternative. Oakland-based Saildrone has a fleet of autonomous sailboats that are loaded with high-tech equipment and can be deployed to collect highly accurate weather and upper-ocean observations.

Holiday Special: ‘Bomb cyclone’ hits Oregon, causes high winds in Washington, too

Nov 27, 2019 322

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Holiday travelers had lots to contend with ahead of Thanksgiving, as an unusual storm known as a "bomb cyclone" hit Southwest Oregon and California Tuesday, reaching speeds of 90 miles per hour in places. Its effects were felt in Washington on Wednesday.

Why snow in the mountains rarely reaches lowlands west of the Cascade Crest

Nov 22, 2019 357

Description:

Snow levels are dropping over the Cascade mountains. Weather officials are warning that anyone planning to cross the passes before Thanksgiving should be aware of the potential for hazardous conditions. As much as a foot is expected to pile up by Wednesday above 3,500 feet, as the temperature drops. And it will be cold enough all around the Northwest to store your extra food outdoors if the fridge is overflowing, says KNKX weather expert Cliff Mass. But don’t expect to build a snowman. Only a few snow flurries are expected in the lowlands on the west side.

Despite weekend rain, November shaping up to be very dry — with no mountain snow

Nov 15, 2019 354

Description:

It was just over a month ago that an early snow storm hit the Cascade Mountains, stoking the hopes and dreams of Northwest skiers for an above average season. “October 8-9 th , we had enough snow that it was messing up travel across the passes,” said KNKX weather expert Cliff Mass, a professor of atmospheric sciences at the University of Washington. “Now unfortunately most of that has melted. And we’ve gone into a very dry pattern.” He points to the record dry spell that ended last week, in which the region tied a record with 14 consecutive days of no precipitation in early November. “And right now, November is way below normal — we’re almost two and a half inches below normal at Sea-Tac, so it’s been a very dry period. And our latest computer simulations suggest that November as a whole will be dry,” Mass said. He says the precipitation we get over the weekend and into next week won’t make much of a dent in that trend. “None of it is going to be that heavy. It looks like we’re going

One of the longest November dry spells in Northwest history – and why that also produces thick fog

Nov 8, 2019 369

Description:

Normally early November is a wet and stormy time of year in the Northwest. Not this year. It has been generally dry and sunny over the past few weeks — dry enough to tie a record for lack of rain, assuming no precipitation falls on Friday. “The record for a period in November is 14 days. That happened in 2002. That’s a very long stretch of no rain,” says KNKX weather expert Cliff Mass, a professor of atmospheric sciences at the University of Washington. “In fact, I think it’s the longest stretch of this particular year, even including the summer, of having no rain.”

Winds stoking California wildfires linked to cold air flowing through the Northwest

Nov 1, 2019 325

Description:

People in the Puget Sound region have experienced chilly weather this week, especially overnight. Temperatures have dipped into the low 30s in some places, with cool and partly sunny weather most days. That's going to continue pretty consistently through the weekend. At the same time, furious winds have been stoking California's wildfires. KNKX weather expert Cliff Mass says the cold here is directly connected to the Diablo and Santa Ana winds that are fueling infernos there.

Perfect combination of weather conditions produces especially spectacular fall colors

Oct 25, 2019 351

Description:

This fall, the Puget Sound region has graced residents with an abundance of clear and crisp sunny days – classic fall weather. And the colors displayed on fall foliage have been exceptionally stunning, says KNKX weather expert Cliff Mass.

Jet stream shift means start of stormy season in the Northwest – and an end to ‘Blob Jr.’

Oct 18, 2019 339

Description:

It’s been a dark and stormy week in the Pacific Northwest. Starting Wednesday, the region was pummeled with wind and wet stuff as series of weather fronts started pushing through the skies above us. KNKX weather expert Cliff Mass says that’s going to continue all weekend and into next week, before it lightens up a bit. The contrast can be jarring, especially when you have the stunning crisp fall days of early October that we did this year, often with sunshine. But Mass says this is absolutely normal.

Forecast skill has limits for predicting winter, but it's saving lives in Northern California

Oct 11, 2019 442

Description:

KNKX weather expert Cliff Mass says it’s going to get a bit warmer over the weekend and he’s confident that “real rain” won’t set in until Tuesday evening. But it’s harder to answer the question many people in Washington are wondering about right now: with record early snowfall in our passes and the unseasonably cold start to fall, should we expect a cold, snowy winter too?

A snowy start to fall in the western US and how that’s connected to record heat in the East

Oct 4, 2019 386

Description:

Not long after we crossed the threshold into autumn last week, leaving the fall equinox behind and watching the days grow shorter, an extreme cold wave hit the West. Records were smashed all around the region. Montana was hit by blizzards and several feet of snow. And in Washington, some of the higher elevations saw almost that much. Spokane got its earliest snow ever.

Get out your sweaters: Record low temps expected as early Arctic blast hits Washington

Sep 27, 2019 351

Description:

Fall arrived in the northwest with a September that has been wetter than normal. Now, unusually early cold is expected to hit the region as an early blast of Arctic air heads our way this weekend. It’s expected to bring record low temperatures to parts of the state and snow east of the Cascade mountains. But as it gets colder, the west side will dry out.

‘Wet-tember’ arrives: expect a wet fall, followed by a ‘neutral’ winter

Sep 20, 2019 313

Description:

September is one of those months in the greater Puget Sound region that can be glorious, with sunny blue skies serving as a stunning backdrop for crisp autumn leaves and classic Northwest views of mountains and water. Not so much this year. It’s been cloudy and cool. And very wet.

20-year lightning storm unlikely to repeat, but more heavy rain is coming to the Northwest

Sep 13, 2019 343

Description:

Lightning lit up skies around the Puget Sound on Thursday night, and another big rainstorm is on its way to Western Washington. But KNKX weather expert Cliff Mass says none of the incoming weather systems are likely to outshine the extraordinary display of lightning that hit the region last Saturday night.

‘Blob Jr.’ might not last, but the marine heat wave has made for hotter nights

Sep 6, 2019 384

Description:

Despite a summer that has been relatively cool overall, a warm area of surface water has formed off the West Coast. It’s about 3-5 degrees warmer than normal for the eastern Pacific Ocean and covers about 6.5 million square kilometers, from Alaska to Hawaii to California. It has put federal fisheries and marine scientists on alert.

Showery, warm Labor Day is ‘close to normal’ for the Puget Sound

Aug 30, 2019 356

Description:

August is often thought of as the hottest time of the summer in the Pacific Northwest, with searing blue skies and sunshine – ideal for boating or heading to a shady park with a wading pool. That's especially true of the past two summers, when hotter-than-average temperatures dried out everything and boosted wildfires that spewed smoke into the region. So, the rapid cool down that started Thursday comes as a bit of a shock.

Is that a ferry boat in the sky? How summer mirages play tricks on your eyes

Aug 23, 2019 275

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Most people have had that classic summer experience of driving along a warm road and seeing a shimmering patch ahead that looks like water. But when you get there, it’s gone. This is a trick of the atmosphere, caused by different densities of the air, associated with temperature. KNKX weather expert Cliff Mass says people ask him about mirages all the time. Among the “most famous" ones, he says, is that "water on the road" mirage — a result of bent light, as the layers of air act like a lens. The blue light of the sky gets bent by the atmospheric lens and projected onto the road, where, from a distance, it looks like water. “But your eyes are lying to you," Mass says. "Because that light actually started in the sky and was bent down and then up to your eyes." INFERIOR MIRAGES This kind of optical illusion — in which the light is bent downward, causing you to think something is lower than it actually is — is called an inferior mirage. These are common in summer, because the warmth on

Morning clouds to part for weather that’s hopefully warm enough to enjoy Sound Breeze

Aug 16, 2019 381

Description:

A push of marine air from the cold Pacific Ocean that came in Thursday night is bringing morning clouds to the greater Puget Sound region. These low clouds typically burn off by noon, though they can stick around longer. KNKX weather expert Cliff Mass expects Friday and Saturday to provide sunny afternoons, with the clouds opening up to blue skies and temperatures in the mid- to upper-70s.

Gloomy weather moves in — and a long-term forecast shows much of the same ahead

Aug 9, 2019 340

Description:

Low clouds have lingered over much of the Puget Sound region in recent days, the latest evidence that this summer stands in stark contrast to the hot, smoky, straw-hat weather of the past two years. KNKX weather expert Cliff Mass says Friday temperatures will only get into the lower 70s. And he says the weekend will be dominated by more of those lower temps, thanks to the presence of an upper level trough.

Overnight rainfall gives way to Seafair weekend sunshine. And what’s with those UFO clouds?

Aug 2, 2019 335

Description:

August was off to a warm and sunny start Thursday, with blue skies and nearly perfect summer weather. But people in the Puget Sound region woke up to as much as a half an inch of rain that fell overnight; on the coast, the precipitation totaled as much as an inch and a half. Temperatures dropped quite a bit, too. KNKX weather expert Cliff Mass said a strong front came through and brought along an intense band of showers.

July’s end usually state’s driest time, but rare showers move in amid start of wildfire season

Jul 26, 2019 354

Description:

With all the bright sun, blue skies and warm temperatures that have dominated Puget Sound weather recently, it’s a little ironic to see showers in the forecast for Saturday. This weekend is the one anyone planning a major outdoor event in the Northwest typically aims for, says KNKX weather expert Cliff Mass.

Region will be ‘stuck in perfect weather’ as record-breaking jet stream loses strength

Jul 19, 2019 327

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"Cloudy and wet" has been the weather mantra so far this July. But KNKX weather expert Cliff Mass say all that is going to change this weekend.

Northwest mellow: clouds, sprinkles and mild temps ahead – and less humidity

Jul 12, 2019 355

Description:

Summertime in the northwest can provide a remarkably mellow atmosphere, with lots of clouds, temperatures that hover around 70 degrees and the kind of sprinkles that evaporate on your skin almost as soon as they land. Low clouds often filter the light and you can enjoy the soft focus all around. That’s the kind of weather people in most of western Washington can look forward to for the next several days.

Cool and cloudy skies ahead with air quality to improve after fireworks

Jul 5, 2019 314

Description:

There’s a joke in Seattle that summer doesn’t start around here until July 12– three weeks after the solstice and nearly a week after Independence Day. “And I have a feeling that may be true this year,” says KNKX weather expert Cliff Mass after a damp Fourth of July with cloudy skies and cool temperatures around 70 degrees.

'Regional climate modeling' provides clearer picture of climate change impacts in PNW

Jun 28, 2019 346

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KNKX weather expert Cliff Mass has been working with a group of atmospheric researchers at the University of Washington hoping to get a better idea of the impact climate change will have on the Pacific Northwest . The group has been conducting "regional climate modeling."

Some June Gloom lingers, but summer solstice brings longer days, ‘rainbow clouds’

Jun 21, 2019 339

Description:

Summer solstice, the longest day of the year, is upon us — marked in Seattle by the colorful Fremont Parade (famous, among other things, for body-painted cyclists). Though the sun sets after 9 p.m., it’s not the sunniest part of summer. June in the Pacific Northwest typically means lots of low clouds, our annual "June Gloom." That’s been tempered lately by lots of iridescent clouds — another feature of the season that is fed by the sun’s position, high up in the sky. KNKX weather expert Cliff Mass expects a little of both this weekend.

Marine air surges in with cooler temps, but wildfire risk remains

Jun 14, 2019 310

Description:

The mercury hit a record-breaking 95 degrees at Sea-Tac Airport Wednesday, causing a road to buckle in Seattle’s SoDo neighborhood in a dramatic display of what heat can do to infrastructure. But where there was heat, there were none of the wildfires some folks often associate with warmer temperatures. In a somewhat ironic twist, the risk of wildfires in the region increased Friday as a push of cooler marine air surged in off the ocean, bringing the low clouds locals more often associate with June weather, sometimes known as "June gloom."

Rare thunderstorms rolling in, followed by sun and heat; and a D-Day weather lesson

Jun 7, 2019 323

Description:

Many people woke up to big patches of blue sky in the Puget Sound region Friday, especially in the South Sound. But KNKX weather expert Cliff Mass says the sun breaks will yield to cloudier weather as low pressure moves into the region. And a rare batch of thunderstorms is expected to douse and excite parts of the state.

How reliable are those extended, seasonal forecasts?

May 31, 2019 258

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It's going to be a beautiful several days, and we can expect lots of sunshine. But as we look toward what's expected in the next week or month, there is some uncertainty. In KNKX weather expert Cliff Mass' blog post this week , he talks about the reliability of extended forecasts. He says forecasting models are "quite good" out about a week.

Sunshine lies ahead after a few drizzly days, but what do the dry conditions mean for the state?

May 24, 2019 329

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There will be a few more wet, cool days before the weather transitions on Sunday to warm and sunny. The drier conditions have many state officials worried about the wildfire season. Gov. Jay Inslee announced a drought declaration this week, but KNKX weather expert Cliff Mass says things may not be as bad as they seem.

Local rain — and California’s record showers — mean healthy water supplies, delayed fire season

May 17, 2019 372

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The wet season has returned to Western Washington, with showers and all out rain alternating through early next week, a continuation of the pattern we’ve been seeing for a while. “But none of that’s going to be that heavy. And the reason is, most of the weather is going into California,” said KNKX weather expert Cliff Mass, who teaches atmospheric sciences at the University of Washington.

Enjoy the heat. Offshore flow brings cooler temperatures Sunday — and lots of rain.

May 10, 2019 363

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There’s a key weather battle that plays out every summer. It determines how warm (or hot) conditions can get in the Puget Sound region. It’s the tug of war between onshore and offshore flow, says KNKX weather expert Cilff Mass.

Warmer weather on its way as 'low cloud season' sets in

May 3, 2019 342

Description:

It’s a prequel to the infamous June Gloom — that dreary period of typical Northwest, in-between weather, with clouds that hang low and persist for weeks without providing any meaningful rain. KNKX weather expert Cliff Mass says May actually marks the start of the "low cloud season" that dominates in June. And we should expect it to extend from now until mid-July.

Enjoy 'perfect' day ahead, and the showers too — smokey season looms

Apr 26, 2019 327

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Clear blue skies and sunshine got the weekend off to a beautiful start in Western Washington. Both are expected to stick around all day Friday, before shifting to showers Saturday morning.

Rain relents, and weather expert shares Puget Sound convergence zone primer

Apr 19, 2019 414

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If you’re tired of all the precipitation that has been raining down on the Northwest since early April, take heart. KNKX weather expert Cliff Mass promises this weekend will be dry and even a bit sunny.

April showers douse the Northwest, building snowpack and filling reservoirs

Apr 12, 2019 325

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Major April showers are dousing the Pacific Northwest, and they're bringing more than flowers. Environment reporter Bellamy Pailthorp talked with weather expert Cliff Mass, who provided the latest forecast and an update on the water situation in the region following an unusually dry March.

Rain returns as region recovers from arid March, but UW team shines bright in forecasting contest

Apr 5, 2019 409

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Stay indoors or get out the Gore-Tex this weekend if you’re going outside in Western Washington. KNKX weather expert Cliff Mass says a triple whammy of weather systems will douse the region, providing some relief from our record-dry March and only a few dry periods over the next few days. “We’re going to have three rain events over the next 72 hours,” Mass said Friday morning. “The drought of March is going to be over.”

Dry weekend set to cap a likely record for March, but rain returns next week

Mar 29, 2019 316

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Another warm, dry weekend is in the forecast for western Washington, adding to what has been an unusually parched month of March. KNKX weather expert Cliff Mass says he expects this to become the second-driest March ever recorded at Sea-Tac Airport, going all the way back to 1948.

Rain expected to bring relief to allergy sufferers after record-smashing heat

Mar 22, 2019 326

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A weather front approaching the Puget Sound region on Friday morning held the promise of precipitation sure to be welcomed by residents suffering from watery eyes, sinus pain, coughs and running noses. Many people’s allergies were triggered this week when a sudden storm of tree pollen was brought on by record heat.

Record storm may not get a name, but Puget Sound is more than ready for ‘extraordinary’ warmth

Mar 15, 2019 434

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Some folks in the greater Puget Sound region have still been watching the last bits of snow melt in their yards, after record cold hit the region last month. But it will all be gone for sure this weekend, as KNKX weather expert Cliff Mass says a radical change is underway.

Sunny, warmer weekend ahead as region says goodbye to snow, hello — again — to El Niño

Mar 8, 2019 347

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Snow showers mixed with rain on Thursday and Friday were the final hurrah for the cold that's had the Puget Sound region in its grip since early February. KNKX weather expert Cliff Mass says a sunny weekend is in store, with steadily warming temperatures. He says the threat of lowland snow is over.

Sunny, blue skies for days as SeaTac looks back at snowiest, third-coldest February

Mar 1, 2019 341

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If you live in western Washington and sunny, clear blue skies tend to lift your mood, you’re in luck. KNKX weather expert Cliff Mass says temps will be in the mid-40s or higher with plenty of sun and no rain until early next week. He calls this kind of weather “totally boring.” “It’s a good time for meteorologists to go on vacation – because nothing interesting is going to happen around here for the next several days,” said Mass, a professor of atmospheric sciences at the University of Washington in Seattle. Mass says high pressure over the eastern Pacific ocean combined with an area of low pressure off the Oregon coast is bringing dry, offshore flow into western Washington, preventing any form of precipitation and holding temperatures in the mid-40s. “Somewhat below normal,” Mass said of the temps but called the pattern “very, very benign.” A PLEASANT WEEKEND AHEAD On Friday, he said western Washington should expect highs of 47 or 48 degrees in the lowlands. “So not quite where we

Record cold February refilling reservoirs; could bring more lowland snow to Washington

Feb 22, 2019 382

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With temperatures hovering around freezing in places and the snow level dropping, several parts of Western Washington saw snow flurries Friday morning. How much more snow will fall in the coming days and whether it will stick are highly uncertain, says KNKX weather expert Cliff Mass.

Cliff Mass: You’ll tell your grandchildren about the record-breaking winter of 2019

Feb 15, 2019 355

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Temperatures will hover above freezing for the next few days, allowing accumulated snow and slush to slowly melt in western Washington. KNKX weather expert Cliff Mass says air that’s cold enough to bring more snow will soon be back. It’s still unclear whether that will actually materialize. But either way, Mass is predicting this February will go down as the coldest on record.

No end in sight to snowy weather as a second big storm hits. So, is this normal?

Feb 8, 2019 335

Description:

Snow flurries started flying into the greater Seattle region Friday morning a little after 7:30, landing on sidewalks and roadways that were finally clear after the big storm that hit the region on Monday. But those flurries were just “a teaser,” said KNKX weather expert Cliff Mass, not the big event expected later in the day.

Season's coldest temps ahead. But don't jump to conclusions on cold waves, Mass says.

Feb 1, 2019 393

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It’s a tricky forecast, as are most that involve lowland snow around Puget Sound, says KNKX weather expert Cliff Mass. But residents of Western Washington should brace themselves for the coldest temperatures they’ve seen so far this winter, with a serious possibility of the white stuff hitting near sea level in several areas on Sunday and Monday.

No rain for days in the Northwest. And a primer on how Earth’s atmosphere formed.

Jan 25, 2019 356

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Light clouds and blue skies greeted most folks in the Puget Sound region Friday morning, and those conditions were expected to stick around all weekend long and into early next week. Lots of lovely days are in the forecast, says KNKX weather expert Cliff Mass.

Decent weekend ahead for outdoor activities in the Northwest. So what happened to El Niño?

Jan 18, 2019 339

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An impressive storm was looming offshore Friday morning, promising to bring significant rain and wind to the Puget Sound region. But KNKX weather expert Cliff Mass says it won’t hit too hard and should give way to a relatively quiet weekend, with plenty of breaks to get outside.

Sunny skies ahead, but double check your forecasts during government shutdown

Jan 11, 2019 319

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The persistent pattern of stormy weather that caused sweeping power outages in the Northwest and restored our snowpack and water supplies in recent weeks is in the rearview mirror, for now. KNKX weather expert Cliff Mass says it will be dry and mild till the middle of next week. And the sun will break through this weekend.

Stormy start to 2019 continues in the Northwest, despite predicted El Niño winter

Jan 4, 2019 335

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Blustery, wet weather blanketed the region overnight into Friday. KNKX weather expert Cliff Mass says you can expect the generally stormy pattern to continue for several weeks, despite a break on Saturday.

Wet, windy Northwest weekend before clearer skies arrive, just in time for New Year’s Eve

Dec 28, 2018 384

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Rainy weather continues to dominate the forecasts in the Pacific Northwest. A healthy dose of wind enters the picture this weekend too, and it will be strong enough to cause some power outages, says KNKX weather expert Cliff Mass. But all that weather should blow through in time for a relatively dry New Year’s Eve.

Explore gift recommendations for Northwest weather watchers

Dec 21, 2018 327

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Indulging the curiosity of a loved one who wants to learn more about the weather is a great way to show your affection over the holidays, says KNKX weather expert Cliff Mass. And he says it’s one of the most frequent questions he gets.

Rain, wind, mountain snow: Stormy Northwest weather continues

Dec 14, 2018 302

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After an unusually dry and sunny start to the season, fall in the Northwest is getting back to normal. Earlier this week, Seattle charted the darkest day its skies had registered in three years, as clouds and wet weather blotted out the sun. KNKX weather expert Cliff Mass says the outlook for the week ahead is a smorgasbord of the things we usually get in winter around Western Washington.

One more day of sunshine, then back to Northwest gloom (and mountain snow!)

Dec 7, 2018 303

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A week of sunny skies that capped nearly a month of unusually clear, bright weather for late fall is wrapping today. KNKX weather expert Cliff Mass says the sun will be a bit filtered as a weather front moves in.

Rain gives way to some brighter, drier Northwest skies this weekend

Nov 30, 2018 343

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An atmospheric river came through the Pacific Northwest last week, dousing the region with enough precipitation to bring accumulated rain levels almost back to normal after an extremely dry start to November. But KNKX weather expert Cliff Mass said the storms were headed southward on Friday, giving California some much-needed rain.

Rain gives way to some brighter, drier Northwest skies this weekend

Nov 30, 2018 343

Description:

An atmospheric river came through the Pacific Northwest last week, dousing the region with enough precipitation to bring accumulated rain levels almost back to normal after an extremely dry start to November. But KNKX weather expert Cliff Mass said the storms were headed southward on Friday, giving California some much-needed rain.

Heavy rain and mountain snow have returned to the Northwest, but this weekend will be dry

Nov 23, 2018 362

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After a string of dry and sunny weekends in greater Puget Sound that had some of us here a bit concerned about the water supply, KNKX weather expert Cliff Mass says don’t worry. He says the normal late November pattern of heavy precipitation has set in and will extend into next week and beyond. It even dusted the mountains with some Thanksgiving snow.

Heavy rain and mountain snow have returned to the Northwest, but this weekend will be dry

Nov 23, 2018 362

Description:

After a string of dry and sunny weekends in greater Puget Sound that had some of us here a bit concerned about the water supply, KNKX weather expert Cliff Mass says don’t worry. He says the normal late November pattern of heavy precipitation has set in and will extend into next week and beyond. It even dusted the mountains with some Thanksgiving snow.

'A Gift From Heaven': Northwest Welcomes Another Rare Sunny Weekend

Nov 16, 2018 365

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Normally, mid- to late November in the Pacific Northwest is a time to bundle up and get cozy indoors, as the wettest and stormiest weather settles in and provides a stark contrast to the blue skies of late summer and early fall. But this weekend, similar to last , people in the region can expect a really nice weekend for all manner of outdoor pursuits.

'A Gift From Heaven': Northwest Welcomes Another Rare Sunny Weekend

Nov 16, 2018 365

Description:

Normally, mid- to late November in the Pacific Northwest is a time to bundle up and get cozy indoors, as the wettest and stormiest weather settles in and provides a stark contrast to the blue skies of late summer and early fall. But this weekend, similar to last , people in the region can expect a really nice weekend for all manner of outdoor pursuits.

Bask In The Sunshine While You Can: Cool, Wet Weather Returns Soon

Nov 9, 2018 335

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It’s that time of year when seasoned Northwesterners soak up as much sunshine as they can when they can — because the end is near. KNKX weather expert Cliff Mass says the last two weeks of November predictably bring the worst weather of the year. But this weekend, he says there will be quite a bit of sun. Mass expects many people will get out and enjoy it.

Bask In The Sunshine While You Can: Cool, Wet Weather Returns Soon

Nov 9, 2018 335

Description:

It’s that time of year when seasoned Northwesterners soak up as much sunshine as they can when they can — because the end is near. KNKX weather expert Cliff Mass says the last two weeks of November predictably bring the worst weather of the year. But this weekend, he says there will be quite a bit of sun. Mass expects many people will get out and enjoy it.

Western Washington Faces Wet Weekend After Unseasonable Warmth

Nov 2, 2018 350

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People in the Pacific Northwest experienced wet but weirdly warm weather on Thursday as rain generated by an atmospheric river came through. These plumes of moisture are a classic feature of late fall and winter weather on the West Coast, and are also known around here as "The Pineapple Express" because they originate in the tropics near Hawaii. And they can bring in unseasonably warm temperatures. The region felt a classic example of it on Thursday, says KNKX weather expert Cliff Mass, who teaches atmospheric sciences at the University of Washington. “We had winds coming from Hawaii. We had an atmospheric river that moved northward into our region. It was startlingly warm, temperatures getting into the low 60s, it was breezy. I mean, you could have been on the big island of Hawaii,” Mass said. “Just fascinating.” Also noteworthy, Mass says, was the way that the rainfall was much heavier on the western side of the Cascades than in Puget Sound, because of the angle at which the

Western Washington Faces Wet Weekend After Unseasonable Warmth

Nov 2, 2018 350

Description:

People in the Pacific Northwest experienced wet but weirdly warm weather on Thursday as rain generated by an atmospheric river came through. These plumes of moisture are a classic feature of late fall and winter weather on the West Coast, and are also known around here as "The Pineapple Express" because they originate in the tropics near Hawaii. And they can bring in unseasonably warm temperatures. The region felt a classic example of it on Thursday, says KNKX weather expert Cliff Mass, who teaches atmospheric sciences at the University of Washington. “We had winds coming from Hawaii. We had an atmospheric river that moved northward into our region. It was startlingly warm, temperatures getting into the low 60s, it was breezy. I mean, you could have been on the big island of Hawaii,” Mass said. “Just fascinating.” Also noteworthy, Mass says, was the way that the rainfall was much heavier on the western side of the Cascades than in Puget Sound, because of the angle at which the

Return of Normal Northwest Autumn Rain With No Fog, Some Sun Breaks This Weekend

Oct 26, 2018 338

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The rain is back. After a lengthy stretch of fog last week, storms are coming in and promising a mostly soggy week ahead, although the sun will break through on at least one day. That’s according to KNKX weather expert Cliff Mass, a professor of Atmospheric Sciences at the University of Washington.

Return of Normal Northwest Autumn Rain With No Fog, Some Sun Breaks This Weekend

Oct 26, 2018 338

Description:

The rain is back. After a lengthy stretch of fog last week, storms are coming in and promising a mostly soggy week ahead, although the sun will break through on at least one day. That’s according to KNKX weather expert Cliff Mass, a professor of Atmospheric Sciences at the University of Washington.

One Last Weekend Of Sun Before Wet And Blustery Weather Returns To Western Wash.

Oct 19, 2018 302

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Sun lovers in the Puget Sound region have one more weekend to get their fill of the dry, clear skies and mild temperatures that have dominated the weather lately. KNKX weather expert Cliff Mass says enjoy the lovely October days while you can because the end is near.

One Last Weekend Of Sun Before Wet And Blustery Weather Returns To Western Wash.

Oct 19, 2018 302

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Sun lovers in the Puget Sound region have one more weekend to get their fill of the dry, clear skies and mild temperatures that have dominated the weather lately. KNKX weather expert Cliff Mass says enjoy the lovely October days while you can because the end is near.

Enjoy ‘Perfect Fall Weather’ For The Next Week If You Live In Western Washington

Oct 12, 2018 356

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A big ridge of high pressure is setting up that will lock in increasingly sunny and warm days in the week ahead all around Western Washington. KNKX weather expert Cliff Mass, who teaches atmospheric sciences at the University of Washington, says if you’re into watching storms or other exciting weather features, you’re not going to find them in the Evergreen state this week. No Rain, Sun Every Day “We have a boring forecast,” Mass says. “High pressure has built on us and it’ll build even more during the next few days.” That means a forecast that most people will look forward to. “We have at least a week of no rain, sun every day. And it’s going to be extraordinary,” Mass said. Some Morning Fog One issue with the ridge of high pressure, Mass says, is that it tends to come with fog in the morning. That was true on Friday morning, which started with lots of low clouds and fog all around the region. He predicts more of that on Saturday. “But as we get into the weekend, we’ll get more

Enjoy ‘Perfect Fall Weather’ For The Next Week If You Live In Western Washington

Oct 12, 2018 356

Description:

A big ridge of high pressure is setting up that will lock in increasingly sunny and warm days in the week ahead all around Western Washington. KNKX weather expert Cliff Mass, who teaches atmospheric sciences at the University of Washington, says if you’re into watching storms or other exciting weather features, you’re not going to find them in the Evergreen state this week. No Rain, Sun Every Day “We have a boring forecast,” Mass says. “High pressure has built on us and it’ll build even more during the next few days.” That means a forecast that most people will look forward to. “We have at least a week of no rain, sun every day. And it’s going to be extraordinary,” Mass said. Some Morning Fog One issue with the ridge of high pressure, Mass says, is that it tends to come with fog in the morning. That was true on Friday morning, which started with lots of low clouds and fog all around the region. He predicts more of that on Saturday. “But as we get into the weekend, we’ll get more

Northwest Winter Forecast Looking Mild With A Weak El Niño In The Cards

Oct 5, 2018 280

Description:

It happens every year. As the summer wanes and fall sets in, people start thinking about the coming winter and how much snow we’ll get, especially in the mountains. In the Pacific Northwest, that can mean dreams of snowy ski slopes or how much snow pack we’ll have to fill reservoirs and water dry streams when the spring melt comes.

Northwest Winter Forecast Looking Mild With A Weak El Niño In The Cards

Oct 5, 2018 280

Description:

It happens every year. As the summer wanes and fall sets in, people start thinking about the coming winter and how much snow we’ll get, especially in the mountains. In the Pacific Northwest, that can mean dreams of snowy ski slopes or how much snow pack we’ll have to fill reservoirs and water dry streams when the spring melt comes.

Northwest’s Glorious Fall Blue Skies Continue Before Some Rain On Sunday

Sep 28, 2018 366

Description:

Fall got off to a glorious start in most of western Washington, with the first week offering consistently clear blue skies and mild temps in most places, most days. That pattern continued Friday morning, with the promise of more clear weather through Saturday.

Northwest’s Glorious Fall Blue Skies Continue Before Some Rain On Sunday

Sep 28, 2018 366

Description:

Fall got off to a glorious start in most of western Washington, with the first week offering consistently clear blue skies and mild temps in most places, most days. That pattern continued Friday morning, with the promise of more clear weather through Saturday.

Another Bout of Weekend Showers, Then Sunny And Clear As Fall Begins

Sep 21, 2018 343

Description:

Friday is officially the final day of summer, marked by the fall equinox. Showery weather is ushering in the transition in western Washington, though it’s expected to make way for some glorious conditions next week.

Another Bout of Weekend Showers, Then Sunny And Clear As Fall Begins

Sep 21, 2018 343

Description:

Friday is officially the final day of summer, marked by the fall equinox. Showery weather is ushering in the transition in western Washington, though it’s expected to make way for some glorious conditions next week.

Showery Weekend Around Puget Sound, Dryer And A Bit Warmer Next Week

Sep 14, 2018 348

Description:

Heavy rain hit many parts of western Washington overnight and into Friday morning – a change welcomed by many, after what was reportedly the state’s third-driest and third-hottest summer of the century.

Showery Weekend Around Puget Sound, Dryer And A Bit Warmer Next Week

Sep 14, 2018 348

Description:

Heavy rain hit many parts of western Washington overnight and into Friday morning – a change welcomed by many, after what was reportedly the state’s third-driest and third-hottest summer of the century.

Clouds And Showers This Weekend Mark Summer’s End In Puget Sound Region

Sep 7, 2018 368

Description:

The good news is that air quality has improved dramatically, and we no longer have to worry about breathing in smoke from wildfires. The bad news is that the clouds and showers moving in with a rapid cooldown this weekend are just the beginning of what will likely be several months of cooler fall weather. “Summer is over,” said KNKX weather expert Cliff Mass.

Clouds And Showers This Weekend Mark Summer’s End In Puget Sound Region

Sep 7, 2018 368

Description:

The good news is that air quality has improved dramatically, and we no longer have to worry about breathing in smoke from wildfires. The bad news is that the clouds and showers moving in with a rapid cooldown this weekend are just the beginning of what will likely be several months of cooler fall weather. “Summer is over,” said KNKX weather expert Cliff Mass.

Puget Sound Region Gets A Break From The Heat, Smoke

Aug 31, 2018 304

Description:

After weeks of air quality issues throughout from wildfire smoke and high temperatures nearing 90 degrees, changes are coming. We've been seeing smoke clearing out and cooler temperatures rolling in over the last week.

Puget Sound Region Gets A Break From The Heat, Smoke

Aug 31, 2018 304

Description:

After weeks of air quality issues throughout from wildfire smoke and high temperatures nearing 90 degrees, changes are coming. We've been seeing smoke clearing out and cooler temperatures rolling in over the last week.

Clearer And Cooler In Puget Sound Region After Surge Of Marine Air, But Smoke's Not Over Yet

Aug 24, 2018 374

Description:

People in the Pacific Northwest are breathing easier, now that a big push of cool marine air has surged in from the coast, clearing local skies of smoke and ash from forest fires throughout the western states and Canada. After another week with some of the worst air quality ever experienced here, clouds and cooler temperatures come as a huge relief. But KNKX weather expert Cliff Mass says it’s not completely over yet.

Clearer And Cooler In Puget Sound Region After Surge Of Marine Air, But Smoke's Not Over Yet

Aug 24, 2018 374

Description:

People in the Pacific Northwest are breathing easier, now that a big push of cool marine air has surged in from the coast, clearing local skies of smoke and ash from forest fires throughout the western states and Canada. After another week with some of the worst air quality ever experienced here, clouds and cooler temperatures come as a huge relief. But KNKX weather expert Cliff Mass says it’s not completely over yet.

Back To Normal Puget Sound Temps, But Air Quality To Fluctuate As Marine Air Surges In

Aug 17, 2018 372

Description:

A cloudy start to Friday with slightly cooler temperatures signaled a return to more normal conditions in the Puget Sound region after a week in which air quality reached its worst levels ever for a 24-hour period, measured by the particulate matter in the air.

Back To Normal Puget Sound Temps, But Air Quality To Fluctuate As Marine Air Surges In

Aug 17, 2018 372

Description:

A cloudy start to Friday with slightly cooler temperatures signaled a return to more normal conditions in the Puget Sound region after a week in which air quality reached its worst levels ever for a 24-hour period, measured by the particulate matter in the air.

Cool, Rainy Saturday Will Clear Smoke From Puget Sound Sky, Sunshine Returns Sunday

Aug 10, 2018 321

Description:

Enjoy the warmth while you can. After a long string of warmer-than-usual, sunny skies in the greater Puget Sound area, cooler temps and rain are in the weekend forecast. KNKX weather expert Cliff Mass says Friday will be the last really warm day for a while.

Cool, Rainy Saturday Will Clear Smoke From Puget Sound Sky, Sunshine Returns Sunday

Aug 10, 2018 321

Description:

Enjoy the warmth while you can. After a long string of warmer-than-usual, sunny skies in the greater Puget Sound area, cooler temps and rain are in the weekend forecast. KNKX weather expert Cliff Mass says Friday will be the last really warm day for a while.

Cooler Northwest Weather Has Arrived – And It’s Igniting Washington Wildfires

Aug 3, 2018 320

Description:

Cloudy skies, cool marine air and patches of drizzle greeted folks in the Puget Sound region Friday morning for a second day. The filtered light and soft cloud layer signaled a return to more typical weather after nearly three months of dry skies and above-normal temperatures. The days of temperatures in the 90s are done, says KNKX weather expert Cliff Mass, a professor of atmospheric sciences at the University of Washington.

Cooler Northwest Weather Has Arrived – And It’s Igniting Washington Wildfires

Aug 3, 2018 320

Description:

Cloudy skies, cool marine air and patches of drizzle greeted folks in the Puget Sound region Friday morning for a second day. The filtered light and soft cloud layer signaled a return to more typical weather after nearly three months of dry skies and above-normal temperatures. The days of temperatures in the 90s are done, says KNKX weather expert Cliff Mass, a professor of atmospheric sciences at the University of Washington.

Glorious Northwest Summer Continues With High Temps and Mostly Clear Skies

Jul 27, 2018 396

Description:

It’s been hot in the Pacific Northwest, with nearly two weeks of clear blue skies and temperatures near 90 degrees. There has been no rain in sight, just a glorious backdrop for mountain and water views, perfect weather for swimming or running through sprinklers. Expect more of that over the weekend and through Monday at least, says KNKX weather expert Cliff Mass, a professor of atmospheric sciences at the University of Washington.

Glorious Northwest Summer Continues With High Temps and Mostly Clear Skies

Jul 27, 2018 396

Description:

It’s been hot in the Pacific Northwest, with nearly two weeks of clear blue skies and temperatures near 90 degrees. There has been no rain in sight, just a glorious backdrop for mountain and water views, perfect weather for swimming or running through sprinklers. Expect more of that over the weekend and through Monday at least, says KNKX weather expert Cliff Mass, a professor of atmospheric sciences at the University of Washington.

WATCH: Why Cliff Mass Loves To Talk About Weather Science

Jul 21, 2018 429

Description:

A mild and cloudy Friday will give way to gradually warmer temps, with sunny skies by Sunday and hot weather in the 90s Monday and Tuesday. That’s all we’re telling you about the specifics of the forecast this week because we have something to celebrate. It’s been 5 years since I started hosting the show, so we thought it would be a good time to pull back the curtain on what we’re aiming for with the segment and why.

WATCH: Why Cliff Mass Loves To Talk About Weather Science

Jul 20, 2018 429

Description:

A mild and cloudy Friday will give way to gradually warmer temps, with sunny skies by Sunday and hot weather in the 90s Monday and Tuesday. That’s all we’re telling you about the specifics of the forecast this week because we have something to celebrate. It’s been 5 years since I started hosting the show, so we thought it would be a good time to pull back the curtain on what we’re aiming for with the segment and why.

Lots of Sunshine, Blue Skies, Heat And Risk Of Northwest Wildfires In The Week Ahead

Jul 14, 2018 377

Description:

Where there’s heat, there is often fire. The fire risk on both sides of the Cascade Mountains is high in the week ahead, as temperatures will be zooming up as high as 90 degrees after a rather dry June.

Lots of Sunshine, Blue Skies, Heat And Risk Of Northwest Wildfires In The Week Ahead

Jul 13, 2018 377

Description:

Where there’s heat, there is often fire. The fire risk on both sides of the Cascade Mountains is high in the week ahead, as temperatures will be zooming up as high as 90 degrees after a rather dry June.

Sustained Blue Skies Coming, After Northwest Summer Rain Clears Air Of Fireworks Residue

Jul 7, 2018 358

Description:

If the cloudy and sometimes dark skies of late have been hard on you, just hang on a bit. KNKX weather expert Cliff Mass says “an improving trend” is ahead. Residents of the Pacific Northwest should soon be enjoying a long stretch of sunny skies. They have even inspired music - like the 1969 TV tune about “the bluest skies you’ve ever seen” are in Seattle.

Sustained Blue Skies Coming, After Northwest Summer Rain Clears Air Of Fireworks Residue

Jul 6, 2018 358

Description:

If the cloudy and sometimes dark skies of late have been hard on you, just hang on a bit. KNKX weather expert Cliff Mass says “an improving trend” is ahead. Residents of the Pacific Northwest should soon be enjoying a long stretch of sunny skies. They have even inspired music - like the 1969 TV tune about “the bluest skies you’ve ever seen” are in Seattle.

‘Juneuary’ Continues In The Puget Sound Region, But July 4th Should Be Dry

Jun 30, 2018 385

Description:

Cloudy skies and cooler-than-normal temperatures will dominate in the week ahead, a continuation of the weather pattern many refer to as “June gloom” for the gray or “Juneuary” when the cloud cover comes with cold air. It’s the kind of ‘blah’ weather that can disappoint people who expect blue skies in June. But the gray, at least, is pretty typical. KNKX weather expert Cliff Mass says it’s going to stick around for a while.

‘Juneuary’ Continues In The Puget Sound Region, But July 4th Should Be Dry

Jun 29, 2018 385

Description:

Cloudy skies and cooler-than-normal temperatures will dominate in the week ahead, a continuation of the weather pattern many refer to as “June gloom” for the gray or “Juneuary” when the cloud cover comes with cold air. It’s the kind of ‘blah’ weather that can disappoint people who expect blue skies in June. But the gray, at least, is pretty typical. KNKX weather expert Cliff Mass says it’s going to stick around for a while.

Summer Has Arrived In The Pacific Northwest With Cooler June Temps

Jun 23, 2018 314

Description:

Cooler weather has settled in all around the Puget Sound region after a rapid drop in temperatures that started Wednesday night. KNKX weather expert Cliff Mass says there will be a bit more sun peeking through the clouds in the days ahead. But overall, summer is starting with a mellower feel than the recent heat wave that pushed temps into the mid- and upper-80s.

Summer Has Arrived In The Pacific Northwest With Cooler June Temps

Jun 22, 2018 314

Description:

Cooler weather has settled in all around the Puget Sound region after a rapid drop in temperatures that started Wednesday night. KNKX weather expert Cliff Mass says there will be a bit more sun peeking through the clouds in the days ahead. But overall, summer is starting with a mellower feel than the recent heat wave that pushed temps into the mid- and upper-80s.

Big Pacific Northwest Warmup Coming Just In Time For Father's Day, Solstice Celebrations

Jun 15, 2018 390

Description:

Last week brought heavy rain showers with cooler temps and even some snow to the mountains in places. But that’s changing as high pressure builds over the region, allowing a big warmup just in time for summer solstice celebrations this weekend and Father’s Day on Sunday.

Big Pacific Northwest Warmup Coming Just In Time For Father's Day, Solstice Celebrations

Jun 15, 2018 390

Description:

Last week brought heavy rain showers with cooler temps and even some snow to the mountains in places. But that’s changing as high pressure builds over the region, allowing a big warmup just in time for summer solstice celebrations this weekend and Father’s Day on Sunday.

Rain Returning To Parched Pacific Northwest After Very Dry May

Jun 8, 2018 358

Description:

This May, people living in the Puget Sound region experienced a lot of warmth and a month so dry, it matched the record for the driest May on record. The dry spell actually began in mid-April, so it lasted about 6 weeks. That was changing Friday as clouds rolled in and skies began to darken. KNKX weather expert Cliff Mass says folks here had better keep their rain gear in reach.

Rain Returning To Parched Pacific Northwest After Very Dry May

Jun 8, 2018 358

Description:

This May, people living in the Puget Sound region experienced a lot of warmth and a month so dry, it matched the record for the driest May on record. The dry spell actually began in mid-April, so it lasted about 6 weeks. That was changing Friday as clouds rolled in and skies began to darken. KNKX weather expert Cliff Mass says folks here had better keep their rain gear in reach.

Windy With A Bit Of June Gloom Before Warmth Returns To Western Wash. Next Week

Jun 1, 2018 389

Description:

Cooler temps, clouds and wind gusts ushered out the record warmth Seattle area residents experienced in May, which also tied a record for lack of rain. All that changed on Friday as marine air surged in and cooled things off.

Windy With A Bit Of June Gloom Before Warmth Returns To Western Wash. Next Week

Jun 1, 2018 389

Description:

Cooler temps, clouds and wind gusts ushered out the record warmth Seattle area residents experienced in May, which also tied a record for lack of rain. All that changed on Friday as marine air surged in and cooled things off.

Sunny Monday And Partly Cloudy Northwest Skies This Memorial Day Weekend

May 25, 2018 362

Description:

The mix of sun and clouds in the Memorial Day weekend forecast should not come as a surprise to people living in the greater Puget Sound region. Late May weather here often brings a tantalizing mix of sunny warmth with clouds that can quickly yield to cooler skies as drizzle or cool marine air pushes in. But the weekend forecast should be mostly drizzle-free, says KNKX weather expert Cliff Mass.

Sunny Monday And Partly Cloudy Northwest Skies This Memorial Day Weekend

May 25, 2018 362

Description:

The mix of sun and clouds in the Memorial Day weekend forecast should not come as a surprise to people living in the greater Puget Sound region. Late May weather here often brings a tantalizing mix of sunny warmth with clouds that can quickly yield to cooler skies as drizzle or cool marine air pushes in. But the weekend forecast should be mostly drizzle-free, says KNKX weather expert Cliff Mass.

Mild Springtime Weather With Intense But Not Unusual Flooding In The Region

May 18, 2018 354

Description:

A rapid melt of mountain snowpack in eastern and central Washington is pushing some rivers to high levels not seen in decades. It’s not that unusual, says KNKX weather expert Cliff Mass, who expects the mild weather nearer to the coast to continue through this weekend.

Mild Springtime Weather With Intense But Not Unusual Flooding In The Region

May 18, 2018 354

Description:

A rapid melt of mountain snowpack in eastern and central Washington is pushing some rivers to high levels not seen in decades. It’s not that unusual, says KNKX weather expert Cliff Mass, who expects the mild weather nearer to the coast to continue through this weekend.

A Sunny Weekend, Zooming To 80 Degrees, But Don’t Call It Global Warming

May 11, 2018 392

Description:

People in the Pacific Northwest have been experiencing a bit of a roller coaster ride weather-wise lately, with temperatures spiking up and down in a manner that KNKX weather expert Cliff Mass says is quite typical for late May. The ride will go uphill this weekend to a predicted high of about 80 degrees on Sunday, just in time for Mother’s Day. “The weekend is going to be wonderful,” Mass says. The clouds will dissipate later in the afternoon Friday, he says, as temperatures climb to the upper 60s and high pressure builds. Mass says it will stick around for a while. Temps Spike On Sunday “On Saturday, we’ll have lots of sun, temperatures zooming up into the mid-70s,” Mass says. "And then I think Sunday we could see 80 degrees – no chance of precipitation – and maybe even the low 80s here in the Puget Sound region on Monday.” He says the warm up will end with cooling again along the coast of Washington on Monday, then on Tuesday and Wednesday, he expects more marine air, with

A Sunny Weekend, Zooming To 80 Degrees, But Don’t Call It Global Warming

May 11, 2018 392

Description:

People in the Pacific Northwest have been experiencing a bit of a roller coaster ride weather-wise lately, with temperatures spiking up and down in a manner that KNKX weather expert Cliff Mass says is quite typical for late May. The ride will go uphill this weekend to a predicted high of about 80 degrees on Sunday, just in time for Mother’s Day. “The weekend is going to be wonderful,” Mass says. The clouds will dissipate later in the afternoon Friday, he says, as temperatures climb to the upper 60s and high pressure builds. Mass says it will stick around for a while. Temps Spike On Sunday “On Saturday, we’ll have lots of sun, temperatures zooming up into the mid-70s,” Mass says. "And then I think Sunday we could see 80 degrees – no chance of precipitation – and maybe even the low 80s here in the Puget Sound region on Monday.” He says the warm up will end with cooling again along the coast of Washington on Monday, then on Tuesday and Wednesday, he expects more marine air, with

Get Ready For ‘May Gray’ and ‘June Gloom’

May 4, 2018 303

Description:

Here are some upsides to cloudy weather: Cloud cover creates a soft light that's great for photographers. It’s harder to get a sun burn. And clouds can be really fun to look at. Many of us may need a few reminders that clouds aren't so bad as we enter what could become an extended period in which low clouds and cooler temps dominate in the greater Puget Sound area.

Get Ready For ‘May Gray’ and ‘June Gloom’

May 4, 2018 303

Description:

Here are some upsides to cloudy weather: Cloud cover creates a soft light that's great for photographers. It’s harder to get a sun burn. And clouds can be really fun to look at. Many of us may need a few reminders that clouds aren't so bad as we enter what could become an extended period in which low clouds and cooler temps dominate in the greater Puget Sound area.

Bye-Bye Sunshine: Marine Push Causes Showers, 20-Degree Drop In Temps

Apr 27, 2018 387

Description:

Folks around the Puget Sound region enjoyed a toasty week with temperatures in the 70s starting Tuesday. They even hit the low- to mid-80s in many places in western Washington. But the classic northwest “sandals-and-socks” people are now wearing their socks again.

Bye-Bye Sunshine: Marine Push Causes Showers, 20-Degree Drop In Temps

Apr 27, 2018 387

Description:

Folks around the Puget Sound region enjoyed a toasty week with temperatures in the 70s starting Tuesday. They even hit the low- to mid-80s in many places in western Washington. But the classic northwest “sandals-and-socks” people are now wearing their socks again.

After Record Rain, Real Spring Warmth Is On Its Way To Western Washington

Apr 20, 2018 313

Description:

After nearly three weeks of wet weather that was making it look like this month might shape up to be one of the rainiest Aprils on record, sunshine is on its way to the Pacific Northwest. KNKX weather expert Cliff Mass says there’s one last rainy stretch to get through late Friday, but after that, real spring warmth and strong sun is on the way.

After Record Rain, Real Spring Warmth Is On Its Way To Western Washington

Apr 20, 2018 313

Description:

After nearly three weeks of wet weather that was making it look like this month might shape up to be one of the rainiest Aprils on record, sunshine is on its way to the Pacific Northwest. KNKX weather expert Cliff Mass says there’s one last rainy stretch to get through late Friday, but after that, real spring warmth and strong sun is on the way.

Feel Like It’s Colder And Wetter Than Normal This Spring? You’re Right

Apr 13, 2018 338

Description:

If you were hoping April showers would hold off this weekend, don’t hold your breath. Be ready for more of the cool, wet weather that has been persisting in the Pacific Northwest in recent weeks.

Feel Like It’s Colder And Wetter Than Normal This Spring? You’re Right

Apr 13, 2018 338

Description:

If you were hoping April showers would hold off this weekend, don’t hold your breath. Be ready for more of the cool, wet weather that has been persisting in the Pacific Northwest in recent weeks.

Weakening La Niña Likely Means Stormy Northwest Weather Next Winter

Apr 6, 2018 299

Description:

‘April showers bring May flowers,’ or so the saying goes. Like Groundhog Day or dozens of sayings you can find cataloged in a Farmer’s Almanac , it’s part of the weather-related folklore that’s been passed down for generations. They hold some truth. But most meteorologists prefer more scientific observations. For long-term forecasting, the ENSO - or " El Niño Southern Oscillation " - provides some of the most reliable guidance on what kind of weather to expect in winter.

Weakening La Niña Likely Means Stormy Northwest Weather Next Winter

Apr 6, 2018 299

Description:

‘April showers bring May flowers,’ or so the saying goes. Like Groundhog Day or dozens of sayings you can find cataloged in a Farmer’s Almanac , it’s part of the weather-related folklore that’s been passed down for generations. They hold some truth. But most meteorologists prefer more scientific observations. For long-term forecasting, the ENSO - or " El Niño Southern Oscillation " - provides some of the most reliable guidance on what kind of weather to expect in winter.

Classic Northwest Spring: Cloudy Skies And Mostly Dry Again This Weekend

Mar 30, 2018 293

Description:

A predominantly cloudy period has dominated in the greater Puget Sound region this past week, with intermittent showers and mostly mild temperatures. That pattern is expected to continue into next week, says KNKX weather expert Cliff Mass – with one exception.

Classic Northwest Spring: Cloudy Skies And Mostly Dry Again This Weekend

Mar 30, 2018 293

Description:

A predominantly cloudy period has dominated in the greater Puget Sound region this past week, with intermittent showers and mostly mild temperatures. That pattern is expected to continue into next week, says KNKX weather expert Cliff Mass – with one exception.

Normal NW Spring Weekend Ahead: Rainy And Cold With Possible Thundershowers And Hail

Mar 23, 2018 322

Description:

When you think of spring, visions of daffodils and cherry blossoms under warm, sunny skies may come to mind. Turns out the more typical aspects of this season, meteorologically speaking, come from the unstable atmosphere, which produces lots of wet and showery, cool weather.

Normal NW Spring Weekend Ahead: Rainy And Cold With Possible Thundershowers And Hail

Mar 23, 2018 322

Description:

When you think of spring, visions of daffodils and cherry blossoms under warm, sunny skies may come to mind. Turns out the more typical aspects of this season, meteorologically speaking, come from the unstable atmosphere, which produces lots of wet and showery, cool weather.

Springlike Weather This Weekend With Mild Temps And A Few Sprinkles

Mar 16, 2018 356

Description:

The vernal equinox marks the official start of spring. That starts Tuesday. But for most folks in the Pacific Northwest, it feels like spring has already arrived.

Springlike Weather This Weekend With Mild Temps And A Few Sprinkles

Mar 16, 2018 356

Description:

The vernal equinox marks the official start of spring. That starts Tuesday. But for most folks in the Pacific Northwest, it feels like spring has already arrived.

Heat Wave Hitting Western Washington This Weekend Will Drive Temps Into High 60s

Mar 9, 2018 296

Description:

Time to get out the short sleeves and sunscreen. Warm winds from the south and east are going to push the mercury to nearly summer-like levels in western Washington this weekend, says KNKX weather expert Cliff Mass.

Classic Northwest Weekend Ahead: Partly Cloudy With A Chance Of Rain

Mar 3, 2018 341

Description:

The record cold, wet and snowy weather of late February has subsided. Residents of western Washington can look forward to a classic Northwest weekend, with mild temperatures, partly cloudy skies and just a chance of rain. “It’s going to be a fairly dry weekend,” said KNKX weather expert Cliff Mass, a professor of atmospheric sciences at the University of Washington.

More Snow, Cold And Rain As Western Wash. Continues To Log Record Low Temps

Feb 24, 2018 337

Description:

Don’t put away your hat and gloves. It’s going to stay cold for the next week or so and there will be snow on Friday. That much is certain, says KNKX weather expert Cliff Mass. The rest of the weekend forecast is tricky.

Below Freezing Temperatures Could Mean Snow Showers In Parts Of Western Washington This Weekend

Feb 10, 2018 304

Description:

Bundle up and get ready for possible lowland snow in places. KNKX weather expert Cliff Mass says cool air moving in to western Washington will push temperatures below freezing in many lowland areas this weekend, with a chance of snow most likely on Sunday.

Heavy Rain, Flooding This Weekend As Unusual Atmospheric River Hits Western Wash.

Feb 3, 2018 370

Description:

Unusually heavy rain and flooding are in the weekend forecast, with the worst hitting Sunday as an atypical atmospheric river sets up from due west and aims its warm plume at western Washington. KNKX weather expert Cliff Mass says that phenomenon means the rain total by the end of this weekend could be 5-10 inches over the lower slopes of the central Cascade Mountains.

Wet And Windy This Weekend As Pacific Cyclone Approaches The Northwest

Jan 27, 2018 377

Description:

Batten down the hatches and keep your rain gear handy. A Pacific cyclone is headed toward Vancouver Island, British Columbia. While the highest winds will likely hit north of the Canadian border, KNKX weather expert Cliff Mass says people in western Washington will notice it too, especially toward the coast.

Stormy Northwest Weather Filling Our Reservoirs, Adding To Mountain Snowpack

Jan 20, 2018 318

Description:

This week, an extraordinary offshore storm produced waves in the Northwest that were 30 feet tall and higher in some places places. One even swept a man out to sea near Lincoln City, Oregon, on Thursday. But KNKX weather expert Cliff Mass says that event is over, and we can expect more run-of-the-mill winter weather in the days to come.

Fresh Snow In The Mountains And A Dry Weekend Ahead, Good For Getting Outside

Jan 13, 2018 331

Description:

It’s been a wet and blustery week in Western Washington. That’s typical weather for this time of year in the Pacific Northwest, but KNKX weather expert Cliff Mass says this weekend will be fairly dry. With lots of fresh snow in the mountains, conditions are good for winter sports enthusiasts, especially on Sunday.

“Unusually Sunny Midwinter” Yielding To More Typical Clouds And Rain

Jan 6, 2018 327

Description:

Rain and cloudy skies have returned to much of the Puget Sound region. KNKX weather expert Cliff Mass says Western Washington can expect more of this showery, gray weather over the next few days. But that’s in contrast to what has actually been a much sunnier winter than usual in the northwest.

Winter’s Temperature Inversions Often Cause Stagnant Air, Fog And Black Ice

Dec 30, 2017 331

Description:

If you’ve ever hiked to the top of a mountain and found yourself shedding layers of clothing because of increasing warmth, you’ve experienced a temperature inversion. They’re strongest in winter and can come with some unpleasant side effects, such as the freezing fog and declining air quality the greater Puget Sound region recently experienced in mid-December. Temperatures in the lowlands were near freezing at the time, but hit 55 degrees at Hurricane Ridge in the Olympics.

Light Rain This Weekend And Warmer Temps As Mega-Ridge Of High Pressure Retreats

Dec 16, 2017 364

Description:

Precipitation and warmer temperatures have returned to the northwest. Light rain was falling all around the region Friday morning as fresher air moved in after a week in which a substantial ridge of high pressure had dominated and trapped in smoke all the way from the California wildfires. Also gone were the freezing fog and black ice. KNKX weather expert Cliff Mass says this mild pattern will continue this weekend and into mid-week.

Persistent High Pressure Will Bring Another Week Of Sun, Morning Fog and Ice

Dec 9, 2017 321

Description:

A strong ridge of high pressure has brought a string of sunny days to the Puget Sound, as well as patches of morning fog that is often accompanied by black ice. KNKX weather expert Cliff Mass says he expects that pattern to stick around for quite a while.

Another Rainy Weekend Ahead, But Then A 'Godzilla Ridge' To Bring Major Dry Spell

Dec 2, 2017 361

Description:

Hang in there if the dreary weather in western Washington has been getting you down. It will be wet and cool again this weekend. But then a system of high pressure sets up and KNKX weather expert Cliff Mass expects a major shift in the weather for a least a week.

Darkest Days Occur Around Thanksgiving In The Northwest

Nov 25, 2017 255

Description:

Have the wet weather and dark days got you down? You’re not alone. Seasonal Affective Disorder, or SAD, is extremely common in the Pacific Northwest. Recent rains and abundant cloudy skies seem to have exacerbated some people’s experience of the lack of light this time of year, says KNKX weather expert Cliff Mass.

It'll Be Warm And Wet For Thanksgiving

Nov 23, 2017 343

Description:

We will be seeing a lot of rain into Thursday with the expectation of flooding in certain parts of Western Washington. And the tropical air that has moved into the region brought a record breaking high temperature for Tuesday night as well.

Loads Of Snow To Enjoy In The Mountains And Rain Off And On In The Lowlands

Nov 18, 2017 341

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Another weekend dominated by mostly showery weather lies ahead, with the driest conditions on Saturday. KNKX weather expert Cliff Mass says that would be a great day to head for the passes and enjoy some wintery fun. Stormy weather earlier this week dumped several feet of snow in the Cascades, allowing all the big ski areas to open.

Northwest Normal: Increasing Rain, November Storm And Snow For Skiiers

Nov 11, 2017 347

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Keep your rain gear handy. A mostly sunny start to the weekend on Friday provided a brief respite from the cold, wet and dark skies that are typical for mid-November in the Northwest, but KNKX weather expert Cliff Mass says don’t be fooled.

Season’s First Dusting Of Snow Around Puget Sound Could Repeat This Weekend

Nov 4, 2017 311

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Wet snow was on the ground Friday morning in many places around Puget Sound, as cold air surged in from British Columbia. “Particularly if you were away from the water or at 500 feet or above,” said KNKX weather expert Cliff Mass.

Morning Fog, But No Rain And Lots Of Sunshine Through Halloween

Oct 28, 2017 342

Description:

“Perfect fall weather,” is in store through the end of the month in the greater Puget Sound region, says KNKX weather expert Cliff Mass. Halloween should offer ideal conditions for trick or treaters. Expect dry skies and warmer than normal temperatures, with some low clouds and morning fog this weekend. After that, a dramatic shift is in store, so enjoy it while you can.

Get Ready For More Rain As Huge Atmospheric River Is Set To Hit Puget Sound Region, Again

Oct 21, 2017 362

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Stormy weather that took out power for tens of thousands of residents in the Pacific Northwest this week made national headlines as The Washington Post commented on the fascinating “river in the sky” that has been dumping rain on the region.

Sunshine Will Break Through Northwest Clouds For At Least One Day This Weekend

Oct 14, 2017 374

Description:

If the cool and cloudy weather that’s been dominating in the Puget Sound region this week has got you down, hang in there. KNKX weather expert Cliff Mass says the weekend forecast is “improving” and there will be a fair amount of sun poking through, especially on Sunday.

Morning Temps Dropping As Showery Fall Weather Takes Hold In Western Washington

Oct 7, 2017 353

Description:

An abundance of crisp blue skies have ushered in a relatively dry start to fall this year in the Pacific Northwest, providing a stunning backdrop as the leaves begin to turn. Some sunnier afternoons allowed folks to keep wearing their shorts and sandals. But KNKX weather expert Cliff Mass says there are some sure signs of autumn.