A rich feed of subtropical moisture from the Pacific Ocean is pushing into the Pacific Northwest and will bring heavy rainfall to Washington along with a concern for flooding. Flash Flood Watches have been issued through Thursday for the western third of the state. Rain totals may climb as high as 3″ to 6″ over the region. River flooding and landslides are possible as rainfall increases.
Rain on and off through Thanksgiving day and through the weekend. Mountain snow levels will be 8000 feet both today and tomorrow lowering to 4500 feet or so by Friday. Minor river flooding is possible tonight and tomorrow. #wawx pic.twitter.com/EdKTtlI8M4
— NWS Seattle (@NWSSeattle) November 21, 2017
A few things to keep in mind as we go through the next couple of days… pic.twitter.com/YJoC2LN0I6
— NWS Seattle (@NWSSeattle) November 21, 2017
Many areas have already seen more than a inch of rain, with totals approaching 4″ in the Olympic Mountains.
Here are some current rain totals from this weather system that started around 3 AM this morning. #wawx pic.twitter.com/tZIPVLR4yR
— NWS Seattle (@NWSSeattle) November 21, 2017
Showers will push ashore throughout tonight, along and ahead of a warm front. Once the front lifts to the north Wednesday midday, rainfall will become more scattered until early Thursday. A cold front will move into the area into Thursday midday, bringing areas of heavy rainfall once again. That front will push east of the area Thursday night and rainfall will diminish.
