Seattle, WA Broke Its Single Day Rainfall Record Yesterday

Chris Wallner | | WeatherWeather
Photo of a rainy Seattle day. Image: Tim Durkan Photography

Seattle, WA broke its single day rainfall record yesterday. The city received 1.20″ of rain on Wednesday, October 18th, 2017, which surpassed the previous record of 1.19″ that was set in 1958. This isn’t a small feat due to the fact that the city roughly 150 days of rain each year.

The previous record was only surpassed by 0.01″. If the temperatures were below freezing, this precipitation would have accumulated to 1-2 feet of snow, depending on the density. The forecast is calling for more rain the next few days, which could lead to minor flooding in the area.

“Today’s NASA image of the Pacific showing systems bringing rain tonight, showery weather Thu/Fri, and substantial rain this weekend.” – NOAA Seattle, WA today

Seattle, WA Hydrologic Outlook: 

328 PM PDT Wed Oct 18 2017

...Heavy rainfall will Give a Threat of Flooding to Many Western
Washington Rivers Saturday night and Sunday...

A period of significant rainfall is forecast by weather prediction
models from later Saturday through Sunday. This rainfall may
produce minor flooding on area rivers starting Saturday night and
continuing through Sunday or Sunday night.

While it is difficult at this time to pinpoint exactly where and
when the heaviest rainfall and highest threat for flooding will
occur, it appears that the greatest threat will be over the
southern half of Western Washington Saturday night and Sunday.

Please continue to monitor latest forecasts since conditions can
Seattle, WA forecast. Image: NOAA

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2 thoughts on “Seattle, WA Broke Its Single Day Rainfall Record Yesterday

  1. This article is a little misleading. Seattle broke its daily record for the date October 18th, not the all time daily rainfall, which was October 20th, 2003 @ 5.02″.

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