Weather with Cliff Mass

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. 

Trevin Chow / Flickr

Weak weather fronts mean the sun should stick around through the weekend, with temperatures in the lower 70s and mid-60s and some occasional light showers. Then, a stronger front moves in late Sunday that will seal our fate for next week – at least when it comes to no sun.  

“The pattern of the atmosphere is shifting,” Cliff Mass told KPLU’s Keith Seinfeld, “so we are going from a ridge-like pattern to a trough-like pattern, which means that for much of next week we are going to be stuck in a cloudy, wet situation with highs getting up to only around 60.”

It’s the first day of fall, but you can’t trust the calendar to tell us what kind of weather we’ll be having. … So, we turn to Cliff Mass and KPLU’s Keith Seinfeld to give it to us straight.

First, it’s the water vapor in the air covering us like a blanket that will keep us warm and humid today and tomorrow. But it all changes again on Monday. And with a new radar station coming online on the coast, Mass says we’ll be able to see our future weather much more clearly.

Lattiboy / KPLU

That's it – nine days of summer. The nine days of over 80 degree temperatures in September look like the best we'll get this year.

“Looking at the maps, the large scale maps over the hemisphere, things have really changed. We’ve gone from a summer-type pattern to a much more winter-like pattern," Cliff Mass told KPLU's Keith Seinfeld in this morning's weather report. "The Jet stream is really strengthening and the storm systems are moving south. “

We’ve got one more weekend of great hot weather before we begin to see temperatures more normal for September, says Cliff Mass, KPLU’s weather commentator and University of Washington Professor of Atmospheric Sciences.

Look for temperatures to be in the lower 80s today with another five to seven degrees higher on Saturday. Sunday will peak at nearly 90. If these temperatures hold out through Monday, we could set a record for number of days in September that have reached or exceeded 80. The record is eight days.

Expect these morning clouds to clear out and to have a sweltering long weekend (for the Northwest this summer anyway) – and through the next week as well.

Cliff Mass, a professor of atmospheric sciences at the University of Washington and KPLU’s new weather commentator, says "It's going to be great."

Oh and with all the talk of hurricanes on the East Coast, what about West Coast hurricanes? We get 'em.

Cliff Mass, a professor of atmospheric sciences at the University of Washington and KPLU’s new weather commentator, says it was Carl Sagan who first inspired him to get out into the public to popularize the science behind weather forecasting.

“I was an undergraduate at Cornell and in those days he was really into popularizing science. He was on the Tonight Show, and he was writing very popular books and a lot of that rubbed off,” Mass told KPLU.

Check out the video above for our complete interview with Cliff Mass.

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