What weather alerts are in effect for the Pacific Northwest?

Pinpoint Alert Days are in effect through at least Thursday due to flash floods, high winds, and heavy mountain snow.

Which rivers are expected to flood in the Pacific Northwest?

The Skagit River is forecast for major flood stage, with the Snoqualmie, Snohomish, Skykomish, Skokomish, and Cowlitz rivers in moderate flood stage.

When will the severe weather impacting Seattle and surrounding areas end?

Alerts are in place through at least Thursday, with ongoing flooding expected through the weekend and a cooler pattern expected to diminish threats by week's end.

Home / Weather / Pacific Northwest Braces for Severe Weather Barrage

Pacific Northwest Braces for Severe Weather Barrage

17 Dec

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Summary

Multiple levee breaks have occurred, exacerbating ongoing flooding.
High winds and heavy snow are expected to impact mountain passes.
Several major rivers are forecast to reach flood stages this week.

Pacific Northwest Braces for Severe Weather Barrage

A series of weather events is impacting the Pacific Northwest, with alerts issued through Thursday. Flash Flood Warnings were in effect due to a levee break on the White River, marking the second such incident recently and adding to ongoing flooding from a previous atmospheric river. High Wind Warnings are in place for Seattle, Bellingham, the San Juans, and the Cascade Foothills, with gusts possibly reaching over 55 mph, increasing the risk of power outages and downed trees.

Heavy snow is anticipated in the mountains, with snowfall rates potentially overwhelming plowing operations. Snoqualmie Pass could see 3-6 inches of snow on Wednesday alone, accompanied by gusty winds creating whiteout conditions. Lowland areas will experience rain and cooler temperatures, with river flooding expected to peak on Wednesday. The Skagit River is forecast to reach major flood stage, while several other rivers will be in moderate flood stage.