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No Rain in the Forecast This Week, but More Fog, Afternoon Sun

Keith Seinfeld

The very dense fog hanging around the region this morning bodes well for a long sunny day ahead, and the week will continue with that pattern, says KPLU weather expert Cliff Mass.

“As I mentioned before, that’s a tremendously good sign,” said Mass, who teaches Atmospheric Sciences at the University of Washington. He says the densest fog usually means the sunniest afternoons.

“The clouds, the cold air, that low foggy layer is actually very shallow today and I expect it to burn out much quicker than it has in the past,” he said, predicting that it should be completely sunny outside by 11 this morning, with temperatures going up to around 60.

“And the rest of the weekend—in fact, the rest of the week—is going to be a repeat of this,” he said. That’s due to a ridge of high pressure over us “that is not going anywhere, maybe just shifting a bit toward the east.”

“And so we should have dry conditions through next Friday and we should have some morning clouds on most of the mornings that burn off somewhere around ten or 11 o’clock,” Mass said.

Monday or Tuesday, Mass said it could take a little longer to burn off because the cloud layer might be thicker and could hold on a little more persistently.

“But in general, there’s no precipitation,” Mass said, “and the temperatures in the mountains are going to be extraordinary. It’s going to be warm and sunny there all week.”


The weekly KPLU feature "Weather with Cliff Mass" airs every Friday at 9 a.m. immediately following BirdNote, and twice on Friday afternoons during All Things Considered. The feature is hosted by KPLU Environment Reporter Bellamy Pailthorp. Cliff Mass is a University of Washington Professor of Atmospheric Sciences, a renowned Seattle weather prognosticator, and a popular weather blogger. You can also subscribe to a podcast of “Weather with Cliff Mass”shows.

Bellamy Pailthorp covers the environment for KNKX with an emphasis on climate justice, human health and food sovereignty. She enjoys reporting about how we will power our future while maintaining healthy cultures and livable cities. Story tips can be sent to