Weather with Cliff Mass

Weather with Cliff Mass
9:17 am
Fri June 22, 2012

Rain for sure, says Cliff Mass, but summer rain is different

Ah, summer rain can be delightful ... but, like it or not, we're in for it.
Minnae Flickr

You can watch out not only for rain showers, but perhaps even some thunder showers on Friday, says Cliff Mass, the KPLU weather expert and professor of Atmospheric Sciences at UW.

If you're planning ahead, he says in this week's podcast, Friday afternoon will get the worst of it, with Saturday slightly less, and Sunday tapering off more and warming up a few degrees.

And, if you're wondering, When will the water at our beaches be warm enough to get in?... Mass has some bad news. The early part of summer is when winds conspire to create "upwelling" along much of the Pacific coast, and that makes the water get colder.

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Weather with Cliff Mass
8:57 am
Fri June 15, 2012

Sunshine! Then some rain, and then ... more changes

rishibando Flickr

Just one day of glory is all we get, says KPLU weather expert Cliff Mass. The clouds roll in tonight, at least around most of western Washington, followed by periods of rain tomorrow.

The sun will still be shining over Portland on Saturday, and east of the Cascades, says Mass, a UW professor of Atmospheric Sciences.

The changes are all typical of June, he says, and by the middle of next week, we'll likely flip back to a few days of sunshine.

This week's interview also covers how to "read" the clouds and tell if rain is on the way.

 

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Weather with Cliff Mass
9:46 am
Fri June 1, 2012

Why is June the month of clouds?

Raindrops are spheres, until they become pancakes
Steve-h Flickr

When Cliff Mass talks about "June Gloom," it's about the clouds more than rain. June doesn't get all that much measurable precipitation, but the clouds lock in place, and sunshine can be rare.

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Weather with Cliff Mass, wind
8:59 am
Fri May 25, 2012

Memorial Day weekend will begin with sun, end with clouds

The wind farms in the Kittitas Valley take advantage of the high-pressure push from the west side of the Cascades to the low-pressure east.
The Associated Press

The forecast for today and tomorrow calls for sun and low to mid-70s temperatures, says KPLU weather expert Cliff Mass. But, the sun and clear skies will give way on Sunday and Monday to clouds and temperatures at least 10 degrees lower.

Basically, we’re still transitioning into the “June gloom.”

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Weather with Cliff Mass
9:52 am
Fri May 18, 2012

Has "June Gloom" arrived early? Not before garden soils warm

Peas may not be sprouting yet, but soils may be warm enough to plant that garden.
Digital Sextant flickr

You can blame a ridge of pressure over the Pacific for pushing a layer of cool, cloudy marine air over western Washington, says KPLU weather expert Cliff Mass.

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Weather with Cliff Mass
9:24 am
Fri May 11, 2012

It's true: Sunshine will bring back the 80's (temps)

Sunshine - pure and simple.
Sam Reed Flickr

The rumors of imminent warmth are confirmed, by KPLU weather expert Cliff Mass.

"The whole weekend is going to be extraordinary," says Mass, professor of atmospheric science at the University of Washington.

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Weather with Cliff Mass
10:16 am
Fri May 4, 2012

NW spring weather has made us crabby for ... well ... a long time

Early Steilacoom - residents then were anxious to see the sun on a regular basis as we are.

Today, KPLU's weather expert Cliff Mass and science reporter Keith Seinfeld touch on the forecast – cloudy through most of Saturday, then getting better through Monday – and then take up a common thread throughout NW weather history: grousing.

Here's a weather report from 1855 published in the Puget Sound Courier:

"Well, March went out, April came in, and with it, cold, wet, disagreeable weather, and a universal spirit of discontent, and a disposition to 'growl'"

"Throughout the entire month, and even up to this, the last day of May, it has been precisely the same, and some amongst us profess to be so thoroughly disgusted with the weather .... that they threaten to leave the Territory altogether."

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Weather with Cliff Mass
9:43 am
Fri April 27, 2012

Could this weekend's weather be a sign of global warming? Check back, in decades

Seattle expects more clouds with sun breaks this weekend
joiseyshowaa flickr

Yet another weekend that beats the work-week, when it comes to sunshine--that's the forecast from KPLU weather expert Cliff Mass, of the University of Washington.

But, it won't exactly be warm and sunny.

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Weather with Cliff Mass
9:06 am
Fri April 20, 2012

Turn, turn, turn goes the weather, bringing sun, and uncertainty

"The spring is the most unstable time of year. That means this is the time of year we tend to get a lot of convection ... this shower and sunbreak type of regime," Cliff Mass said.
Chris Tarnawski Flickr

April showers will dry out today, and by Saturday, most of western Washington should see sunshine. But, we're not so sure about Sunday.

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Weather with Cliff Mass
9:24 am
Fri April 13, 2012

Beautiful mornings, then back to "normal" on Monday

If you've been enjoying sunshine and how the light plays off the blossoms or the water -- there's more in store this weekend. But, it's not "normal," says KPLU weather expert Cliff Mass.

"It's been drier than normal this month. From April first until now, we are over an inch below normal, in terms of rainfall. We have been warmer than normal this past week," he says.

That continues through Sunday, with temperatures reaching the lower to mid-60s.

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Weather with Cliff Mass
9:29 am
Fri April 6, 2012

April showers are giving way this weekend (as we remember the great Vancouver tornado)

Cumulus clouds have been prominent this week. If they grow bigger, they can signal storms ahead.
Carlye Calvin UCAR

A few scattered showers on Friday--and some puffy cumulus clouds--will dry out for Saturday.

"It should be a glorious day. And interestingly enough it should be warmer in western Washington than eastern Washington, which is not the normal situation this time of year," says KPLU weather expert and UW professor Cliff Mass.

The sunshine should stick around Sunday, but there's a bit of a debate among meteorologists over what happens Sunday evening and next week.

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Record Weather
1:35 pm
Mon April 2, 2012

Record rains in Portland and much of Washington

KPLU weather expert Cliff Mass presented this map of the percentage of normal of precipitation in March. "Much of eastern Washington is amazing with totals of 200-300 percent of normal," he said.

This March was Portland's wettest month ever, with a record-breaking 7.73 inches of rain. And, records fell throughout most of Washington last month, as well, reports KPLU weather expert Cliff Mass.

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Weather with Cliff Mass
9:29 am
Fri March 30, 2012

Atmospheric river brings record rains to Northwest

A satellite image shows how water gets channeled into a stream of moisture flowing toward the Northwest
NOAA

What happens when a river runs into a mountain?

An atmospheric river, carrying dense clouds of moisture from the tropical Pacific, has been colliding with our mountains, and all that moisture has been dropping like a waterfall.

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Weather with Cliff Mass
9:14 am
Fri March 23, 2012

The cold temperatures are gone, for real

Awww - we're all ready for a little sun and warmth.
indigo Flickr

It's true, says KPLU weather expert Cliff Mass, of the University of Washington. It will feel like spring from here on out.

We had clear skies starting this morning, and temperatures will approach 60 on Saturday, says Mass. Expect a few clouds on Sunday, but still a pleasant day.

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Weather with Cliff Mass
9:02 am
Fri March 16, 2012

We're stuck! Expect 10 days of off-and-on rain, even some snow

Spring is in the future, but so is the rain.
Steve Wall Flickr

Sure spring is coming next week, but KPLU's weather expert Cliff Mass says we'll be seeing plenty of rain and even some snow this weekend and it doesn't get any better for days to come.

Mass explains on his blog: "Last winter we were securely in La Nina conditions and the region experienced a miserable, cold, wet spring that lasted into mid summer.   Horror to all soccer and Little League parents.

"This winter we have also been in a La Nina and since early February we have been colder and wetter than normal, with snowpack surging in our mountains. Yes, it appears we are dealing with  the revenge of La Nina."

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