The atmospheric river, which has brought nearly 2 inches of rain to Seattle and 5 inches to parts of the Olympic Peninsula in the past 24 hours, stretches for 2,000 miles across the Pacific.
But don’t despair: we don’t get everything.
After Tuesday we’re probably halfway through our share, according to Courtney Carpenter, a meteorologist with the National Weather Service in Seattle.
It’s going to rain heavily again Tuesday night through Wednesday, which is expected to fall an inch or two on Seattle before it gets dry enough on Wednesday for us to see the sun before it goes down, she said.
Thursday is expected to be dry but cloudy for much of the day, with light rain Thursday evening through Friday.
Once that’s over, it will be dry or semi-dry – but not sunny – by Saturday, Carpenter said.
And on Sunday we can expect another lap of lighter rain.
Then the atmospheric river – sometimes referred to as the Pineapple Express – slopes south, meaning Monday and Tuesday should be dry.
In the meantime, expect more snow on the mountains and mountain passes, and the risk of flooding on rivers across West Washington.
Here’s a prediction of what the radar might look like all day. The rain may lose intensity this morning by early afternoon, but we expect another heavy rain north in Weds AM later in the afternoon! #wawx pic.twitter.com/ILK7M6uTON
– NWS Seattle (@NWSSeattle) January 12, 2021
On Tuesday, the National Weather Service warned of closings due to water accumulation on the streets and urged drivers to heed any signs or barricades indicating closings.
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