Sunday, December 26, 2021

NowCast: Arctic Front Moving South

8:30 AM Sunday: The much-anticipated Arctic front is slowly moving south through Puget Sound, and as of 8:30 AM, snow is falling on a line from roughly Gig Harbor to Federal Way.

The snow band has already brought snow to Seattle, Bellevue, and Kent…as seen in the WSDOT image below.

Snow is sticking to all roads, as temperatures have been below freezing since Saturday night.


As the front moves south, two things will occur. Snow, heavy at times, and a drop in temperatures. 

The radar from RadarScope at 8:40 AM Sunday shows the snow.


In anticipation of this snow band, NWS Seattle issued a Winter Storm Warning for parts of King, Snohomish, Kitsap, and Mason counties. It is posted below.


Expect additional accumulations of 2-5 inches in these areas through around 3 PM Sunday.

In Pierce and Thurston Counties, 1-3 inches are likely, with locally higher amounts, especially in the Cascade foothills.

Regarding temperatures, the Arctic front will lower them significantly. Behind the front, temperatures range from the mid 20s in Everett to 5-15 degrees with -10 to -15 degree wind chills in Bellingham.

Below are the temperatures as of 8:45 AM. 


The blue line shows approximately where the front is. Temperatures will drop to the mid 20s behind the front, potentially even into the low 20s by the afternoon.

Lows are expected to drop into the mid to upper teens across the region tonight, with highs only in the 20s on Monday.

Stay updated on Twitter! Please stay safe & stay warm!

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