Weather with Cliff Mass

Weather with Cliff Mass
9:10 am
Fri October 5, 2012

Ditto? Seven more days of the same sunny skies forecasted

rutlo Flickr

Don't credit global warming. And don't call it karma. Sometimes, weather patterns just lock in place, says KPLU weather expert Cliff Mass.

Today, the pattern is perfection. Sunny, clear skies, with temperatures in the upper 60s, occasionally breaking 70, says Mass, a professor of Atmospheric Sciences at the University of Washington. And seven days in a row of that, stretching through next Thursday. It could change at the end of next week, but maybe not, he says.

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Weather with Cliff Mass
9:34 am
Fri September 28, 2012

Summer is gone and that means some surprises (and rain)

b k Flickr

Yes, this morning's brief showers showed that in fact our fabulous summer is at an end (but there will be more sunny days to come), says KPLU's weather expert Cliff Mass.

Mass added that forecasters were blindsided by this morning's rain across the region, but they are back on track with predictions of a front moving in this afternoon. That front too will bring some rain, but the clouds will burn off probably by Saturday evening and Sunday will be sunny.

Weather
2:20 pm
Mon September 24, 2012

Video: Plenty of superior mirages this summer – here's a great one

Weather aficionado Greg Johnson calls this image looking at Bush Point from his home in Hansville on the Kitsap Peninsula the "Bush Point Condos."
Greg Johnson Skunk Bay Weather Blog

Greg Johnson, a Puget Sound weather aficionado, was recently called out by KPLU’s own weather expert Cliff Mass for a unique video that shows the development of superior mirages during the day. And, with our string of sunny days, there has been plenty of opportunity to see the mirages this summer.

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Weather with Cliff Mass
8:43 am
Fri September 21, 2012

How Cliff Mass helps crime scene investigations

He seems like your ordinary scientist, but KPLU weather expert and University of Washington professor of Atmospheric Sciences Cliff Mass has been moonlighting. He can be found in courtrooms, as a favorite expert when the weather may determine guilt or innocence.

For the complete story, click the "listen" button above.

Weather with Cliff Mass
9:13 am
Fri September 14, 2012

Why the water at Washington's beaches is so cold

Nevermind the predictable weather for this weekend (cloudy mornings, sunshine breaking through, temps in the 70's) -- KPLU weather expert Cliff Mass wants to talk about a strange phenomenon along the Washington coast.

The water temperatures on any of our coastal beaches -- along the Olympic coast, at Ocean Shores, Westport or Long Beach -- is typically in the 40s or low 50s, says Mass, a professor of Atmospheric Science at the University of Washington.

That's cold.

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Weather with Cliff Mass
9:07 am
Fri September 7, 2012

Will we break the 'dry' record? Cliff Mass says, Unlikely

Will the stretch of sunny days end soon? Cliff Mass predicts it will.
Jake Ellison KPLU

The record for consecutive days without rain at Seatac is 51 days, set in 1951. To break that record, we'd need to see no rain through Tuesday.

"I think we are probably going to get to 49, but I don't think we'll get to 50 or 51," says KPLU weather expert Cliff Mass, a professor of Atmospheric Sciences at the University of Washington. "It's tragic. But we're going to be happy with the second longest streak of dry weather in Seattle history."

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Weather with Cliff Mass
9:05 am
Fri August 31, 2012

Sunshine, and a record streak of dry days

With heat on the way, your tomatoes just might ripen this year
jakobnewman Flickr

Western Washington is wrapping up its driest August ever, says KPLU weather expert Cliff Mass, a professor of Atmospheric Sciences at the University of Washington.

And, with no precipitation in sight for the next two weeks, Mass says we may even break an all-time streak for the most consecutive days without rain. The record is 51 days, set in 1951.

"We are thirty-eight days in, right now," he says. "So, we certainly have a shot at the big record."

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Weather with Cliff Mass
9:10 am
Fri August 24, 2012

Gorgeous Saturday, but clouds and rain on the horizon

esanchezleenheer Flickr

Enjoy a beautiful weekend, says KPLU weather expert and UW professor Cliff Mass.

But we've entered a late-summer pattern that should start bringing occasional showers, starting early next week. That brings an end to an annual dry period that makes the northwest drier than the deserts of Arizona, says Mass. It's been four weeks without measurable rain in western Washington.

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Weather with Cliff Mass
9:05 am
Fri August 17, 2012

Forecast - hot but getting cooler

Today’s going to be hot again, but it's already cooler than expected this morning, says KPLU weather expert Cliff Mass.

“We had some marine air that pushed up the coast, clouds have inundated the coastal areas. So if you're on the coast it's going to be cooler," he says. "And here in the interior we're starting cooler: five to ten degrees in some places. But the trouble is this cool marine air is very thin."

He says that cool marine layer will burn off fast, yielding to hot temps aloft. So today he expects highs of high 80s to 90 closer to the coast. And away from the water, perhaps the low 90s.

"So one more warm day. Then tomorrow a step down. Today's the hottest day."

There's a chance of thunderstorms Saturday afternoon, which could have a big impact on the wildfires in Cle Elum and Thorp. The danger is the chance of lighting without rain.

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Weather with Cliff Mass
9:35 am
Fri August 10, 2012

Forecast - best is still to come (though it's great already)

Great weekend weather will make the Perseid meteor shower a delight. The annual event is expected to peak Saturday night and Sunday morning.
The Associated Press

Today’s going to be a great summer day, especially as some low clouds burn off later – but that’s not the best part of the forecast, says KPLU weather expert Cliff Mass.

“Today is the worst day of the weekend, believe it or not. And temperatures are going to get up into the mid- to upper-70s even near 80 in a couple places. So, it’s just an absolute wonderful day. But it’s going to get even better,” he says.

The skies will stay clear and temperatures will warm as we get into the weekend, with many places away from the water seeing 80-plus degrees. 

Weather with Cliff Mass
9:02 am
Fri August 3, 2012

Hottest day of the year (so far) likely tomorrow

As the air flows out to sea, known as offshore flow, the heat settles onto Seattle.
Amber Vaesca KPLU

Sometimes, like this weekend ... a miracle happens, reports our weather expert and University of Washington professor Cliff Mass. 

That miracle may bring the hottest day of the year this weekend.

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Weather with Cliff Mass
9:01 am
Fri July 27, 2012

Cloudy mornings, cool days will prevail into next week

We're in for foggy, cloudy and cool weather for at least a week.
ripporch Flickr

Don't let yesterday's warmer temps fake you out, says KPLU's weather expert Cliff Mass. Fact is, we're stuck in a pattern of cloudy mornings and cool days deep into next week with possibly some rain arriving on Thursday.

The cause? "We have this persistent troughing along the West Coast, and associated with that is ridging over the middle of the country, " Mass said. "So, they’re getting this enhanced drought, and we’re getting the enhanced low clouds. We’re colder than normal, they're warmer than normal."

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Weather with Cliff Mass
9:08 am
Fri July 20, 2012

Why the NW is experiencing a summer of thunderstorms, flash floods

They're hitting us hard this year - thunderstorms are causing plenty of lightning shows and flash flooding.
ryanobjc Flickr

"This is the summer of thunderstorms," says Cliff Mass, KPLU weather expert and meteorologist at the University of Washington.

An unusual pattern of low pressure keeps recurring over the western U.S., bringing the rain and lightning. Temperatures are about ten degrees below normal for this part of July--which is typically the sunniest part of the year in the Puget Sound area.

East of the mountains, there have been two flash floods, as of this morning.

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Weather with Cliff Mass
9:09 am
Fri July 13, 2012

Summer thunderstorms will continue, says Cliff Mass

Lightning over Puget Sound on Thursday night, as seen from the northern Kitsap town of Hansville.
Greg Johnson www.skunkbayweather.com

If you were in the mountains or northern Puget Sound last night, you may have seen some spectacular lightning bolts and thunderstorms. Those are rare in the northwest, compared with the midwest. But KPLU weather expert Cliff Mass says the right conditions are here now, and will be with us through Saturday.

Mass, a professor of Atmospheric Science at the University of Washington, explains why, in this week's interview.

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Pollution
9:09 am
Mon July 9, 2012

Asian fires clouding Seattle's sunny skies

A MODIS satellite image that shows the smoke yesterday very clearly.
Cliff Mass KPLU

The smoky skies over Seattle are likely from Asia and not Western fires, says Cliff Mass, KPLU weather forecaster and University of Washington professor.

In his blog post on the smoke, he said the air over us can be traced back to Asia at low levels.

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