Temperatures have dropped to frigid levels across Western Washington, behind the Arctic front that brought 3-8 inches of snow to the Central Sound. 9:10 PM temperatures are below.
Temperatures range from the single digits to low teens in Whatcom County and Eastern Washington to the upper teens to mid 20s across the rest of the region.
The Arctic air we are being impacted by originates in Canada and flows through the Fraser River Valley. This means that cold northerly winds are flowing through Western Washington. The winds are brutal in Whatcom County, where 50-70 mph gusts have occurred, along with wind chills of -5 to -15 degrees, prompting an incredibly rare Wind Chill Warning for Whatcom and San Juan counties.
Wind chills at 9:15 PM are below.
These are extraordinary wind chills for Western Washington. Notice that single digit wind chills are occurring along Puget Sound due to gusty northerly winds. This includes populated areas along the Sound, like Seattle and Everett.
Temperatures on Monday morning will be in the mid to upper teens around Puget Sound and in the 5-15 degree range in Whatcom, Skagit, and San Juan Counties. (NWS NBM model for 8 AM Monday below).
With temperatures far below freezing overnight, as you would expect, highs on Monday will barely reach the mid 20s. Temperatures at 2 PM Monday are below.
Frigid highs of 22-26 degrees are expected in the lowlands, 28-32 degrees on the coast, and 10-20 degrees in Whatcom, Skagit, and San Juan Counties.
Due to the extended time of temperatures below freezing, difficult road conditions will continue. Area roads will likely have compact snow and ice, along with areas of black ice. Use extreme caution driving in these conditions.
Check area road conditions here (WSDOT website). Stay updated by checking our local meteorologists’ pages on Twitter!
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