Weather with Cliff Mass

University of Washington Professor of Atmospheric Sciences and renowned Seattle weather prognosticator/personality Cliff Mass has joined KPLU’s roster of commentators.

"Weather with Cliff Mass", our new five-minute feature hosted by KPLU's environment reporter Bellamy Pailthorp, airs every Friday beginning at 9 a.m. immediately following "BirdNote", and will repeat twice on Friday afternoons during All Things Considered. It is also available as a podcast on kplu.org

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If your Memorial Day weekend plans include a hike in the mountains, be prepared for rain. And if you’re hanging around the Northwest Folklife Festival or elsewhere in the lowlands, expect showers, says KPLU weather expert Cliff Mass.

He says it’s a continuation of a pattern that started on Thursday and continued into Friday morning.

“We had a lot of low clouds moving in to the west of the Cascade Crest,” Mass said.

“There’s an on-shore pressure gradient and so there’s stratus and strato cumulous (clouds) at lower levels. But at upper levels, we’re getting flow still coming off the mountains,” he said.

Tim Hamilton / Flickr

If you were out in shorts last weekend, slathering on sunscreen, be prepared for a different kind of weather this Saturday and Sunday.

“There won’t be a lot of sun tomorrow for most of Western Washington. Maybe a few sunbreaks, but not much more than that,” says KPLU weather expert Cliff Mass, a professor of atmospheric sciences at the University of Washington. “This is going to be kind of a so-so, middle-of-the-road weekend.”

Tim Durkan Photography

Friday is the best day of the weekend to recharge your vitamin D stores by soaking up sun and warmth, says KPLU weather expert Cliff Mass.

But the whole weekend looks pretty glorious. He says the small amount of clouds present are limited to places near the water.

“A few fog patches along the coast, those are burning off, so – great day,” he said of Friday’s weather. “Temperatures will get into the lower to mid-seventies, with total sun, no precipitation, so – wonderful.”

Tim Durkan

Enjoy the sunny weekend –but keep your rain gear ready – we’re going to have a nice scenario for gardening and other outdoorsy pursuits this weekend.

That’s according to KPLU weather expert Cliff Mass, who is also excited about the recent news of El Nino and La Nina. (Click “listen to our podcast and hear his information about all that.)

Tim Durkan Photography

Gardeners can get out the gloves and seed but skiers will have to stow their gear. Clear skies and warm temperatures headed our way will melt the small blanket of new snow from last week, said KPLU weather expert Cliff Mass.

“On Thursday, we had almost complete sunshine,” Mass said, adding that his team of meteorologists at the University of Washington measures the amount of solar radiation coming in. “And there were virtually no clouds getting in the way of our sensor, so it was total, maximum sunshine.”

Tim Durkan

Cliff Mass is one of the region’s clearest communicators about the weather. We talked this week about the impacts of climate change in the next century. He has indicated in the past that we are relatively lucky when it comes to climate change.

But there will be changes, in the future.

Tim Durkan

The thunderstorms that hit our region a couple of days ago are a classic sign of spring in the Northwest. And the temps we’ve been experiencing lately are entirely normal for this time of year, says KPLU weather expert, Cliff Mass. 

So if you’ve been shivering and wishing for the balmy temps that made Monday seem like summer, Mass says you might as well get used to it for a while. We’re in for a cloudy, unsettled weekend, with “plenty of clouds around," according to Mass.

Tim Durkan

Another unusually warm weekend is in store, but KPLU weather expert Cliff Mass says it’s not one for the history books.

“It’s not going to be as hot as we’ve had,” he said.

That’s in contrast to Thursday, when the mercury hit 71 degrees in Seattle, an all-time record high for that day.

Stephanie Sinclair

Spring is officially here.

The vernal equinox means that days and nights are of equal length. From here on out, the days will get longer. It’s also a great season for cloudgazing, which KPLU weather expert Cliff Mass knows a lot about.

This weekend will bring plenty of opportunities for admiring all kinds of clouds.

“Clouds like altostratus and altocumulus that will be thickening in,” Mass said. “Another cloud that’s very popular around here we’ll see tomorrow morning: the stratocumulus – low clouds that have these heaps and clear skies in between.”

Tim Durkan Photography

Get your tee shirts and shorts out. You'll need them as we head into the weekend. 

That’s the word from KPLU weather expert Cliff Mass, who says the warm air above us is “warm enough that if it was completely sunny today, many people would experience temperatures getting into the lower 70s.”

Possibility Of Record-Breaking Temps Friday

The big question, Mass said, is how much the clouds will thicken up on Friday around the Puget Sound region.

If they’re thick, Mass says temperatures will hit 66 or 67 degrees, which is way warmer than normal.

Tim Durkan

If rainy weather makes you blue, don’t worry. The sun will come out on Saturday, and the weekend will bring us back to the pattern of sunshine. 

KPLU weather expert Cliff Mass sounded a bit surprised to see rain coming down on Friday, amid one of the sunniest winters we’ve experienced in a long time.

Tim Durkan

Friday’s clouds and sprinkles are moving out, and sunshine and more warmth are coming in this weekend.

And you can expect the pattern of unseasonably warm weather we’ve been having in western Washington to intensify over the next week, says KPLU weather expert Cliff Mass.

Tim Durkan

Mother Nature is serving up sunny skies and amazingly warm temperatures for the long Valentine’s Day weekend.

KPLU weather expert Cliff Mass says conditions will be “perfect for conditions hikers, bikers and gardeners; let’s not mention skiers." 

Tim Durkan

Keep your rain gear handy.

The record rain that hit Seattle and drenched the Olympic Mountains Thursday will keep pounding the region for most of the weekend, says KPLU weather expert Cliff Mass.

Tim Durkan

Dense fog blanketed much of the region Friday morning, but it burned off quickly, though morning fog is in the forecast again Saturday.

“Strangely enough, that’s a good sign,” said KPLU weather expert Cliff Mass.

Steve Mohundro / Flickr

Western Washington has been warmer than normal lately. People were shedding layers as the mercury hit temperatures in the 50s this week.

KPLU weather expert Cliff Mass says that pattern will continue and intensify this weekend, especially on Sunday. Records will be broken.

Ted S. Warrena / AP Photo

KPLU weather expert Cliff Mass says his email inbox has been full of questions about when the snow will return to western Washington, especially in the mountains and ski areas.

“In fact, things are not great right now,” Mass said. And extended forecasts indicate it’s unlikely to improve much this year.

Tim Durkan

The mild winter weather will continue through the weekend, and a burst of rain expected Saturday should die down in time for the Seahawks game, says KPLU weather expert Cliff Mass.

Tim Durkan

The fog will likely stick around for a few more days, thanks to “a huge inversion,” an upside-down pattern of air temperatures that trap morning fog, says KPLU weather expert Cliff Mass.

Tim Durkan

The dry, cold weather and clear blue skies that ushered in the new year with spectacular mountain views around Seattle is coming to an end. The clouds have moved in and you’ll need some rain gear by Sunday at the latest, says KPLU weather expert Cliff Mass.

Seattle Municipal Archives

    

Engaging with his audience is something KPLU weather expert Cliff Mass very much enjoys.

Tim Durkan

If you ever have a question about the weather, KPLU weather expert Cliff Mass wants to hear it. We’ve assembled answers to a range of listener queries and will be answering them over the next two weeks. Here’s the first batch.

Puget Sound Energy

Winds that toppled trees and caused about 150,000 power outages around the Puget Sound region have subsided, but they made for some exciting weather Thursday night, says KPLU weather expert Cliff Mass. 

Joel Telling / Flickr

Replace your wool hat and gloves with your rain gear. We’re back to warm and wet weather, says KPLU weather expert Cliff Mass.

The rain will settle in Friday and temperatures will rise into the 50s, says Mass, setting the stage for the rest of the weekend.

Elaine Thompson / AP Photo

Forget any hopes you may have had for skiing over the holiday weekend. But you might see some snow at sea level.

Pat Teglia / Flickr

The week before Thanksgiving is normally the wettest, stormiest part of the year in the Pacific Northwest. And true to form, the rains and wet clouds are back, says KPLU weather expert Cliff Mass.

“If you look at the records going back decades, this is the week: ground zero for storms and wetness here in the Northwest. And it may not disappoint,” Mass said.

Tim Durkan

Keep your hats and scarves handy. The clear skies and cold temperatures we’ve been experiencing will continue through the middle of next week, says KPLU weather expert Cliff Mass.

Aaron Brethorst

Sick of the howling winds that swept through Thursday? KPLU weather expert Cliff Mass has good news: “We’re not going to see that the rest of the weekend, and early next week, just the opposite.”

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Trick-or-treaters can look forward to less-than-ghoulish weather for this evening's candy harvest. KPLU weather expert Cliff Mass said Friday's rainy Pacific front should clear off to the east by the time the ghosts and goblins hit the streets.

(Does anyone dress up as ghosts or goblins anymore? Perhaps I should say "Marvel heroes," or "Provocatively-dressed pop culture figures." -ed.)

"It may not be as scary tonight as some people feared," said Mass, Professor of atmospheric sciences at the University of Washington. "Maybe there will be a few showers, but it will be mainly dry, so not too bad. And temperatures getting up into the upper 50s today [Friday]."

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