A blast of cold air sweeping down from inland British Columbia is expected to give much of Western Washington its first freeze of the season Tuesday night, with temperatures just below freezing in the Seattle area and down to the teens and single digits in the mountain passes.
After a clear, cold couple of days, precipitation returns to the forecast Wednesday night, creating the possibility of snow in the mountain passes and in Eastern Washington.
Southwest Washington — from Olympia south — also could get some snow by Thursday, said Weather Service Meteorologist Jay Neher. But he said snow is not expected in the Seattle area.
The prospect of icy breezes through the day Tuesday has triggered a Weather Service wind advisory from 6 a.m. Tuesday through Wednesday afternoon, affecting Cascade foothill communities such as Gold Bar, North Bend and Enumclaw.
Those areas might see sustained winds of 20 to 35 mph, with gusts up to 50 mph — enough to snap tree branches and cause power outages.
Gale warnings have been issued for winds of 40 mph or higher along the Washington Coast and into the San Juan Islands Tuesday.
Tuesday night is expected to be the coldest of the week, with lows of 30 in Seattle, 26 in Bellingham, 14 on Snoqualmie Pass and 9 on Stevens Pass.
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