FastCast—Monday, Apr. 25 to Thursday, Apr. 28:
After a beautiful weekend, with highs in the low 60s on Saturday and the upper 60s to low 70s on Sunday, rain will return to the region to begin the work week. Showers are moving onshore Sunday evening, with showers at times through Wednesday. Expect these showers to total 0.2 to 0.5 inches in the lowlands (in a slight rain shadow) and 0.7 to 1.5 inches in the foothills, north of Everett, and on the coast. Temperatures will cool significantly from their Sunday highs. Expect highs in the low to mid 50s and lows in the upper 30s to low 40s from Monday to Thursday.
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What a beautiful weekend! This weekend was a nice break between rainy/showery periods in Western Washington. Sunday’s highs around the interior lowlands are below.
Highs reached the upper 60s to low 70s, the warmest day since April 7th! Unfortunately, no days above the low 60s are expected for the next week. Rain showers return overnight Sunday, remaining through Wednesday. The European model forecast for rain through early Thursday is below.
Expect 0.2 to 0.5 inches of rain in the lowlands (which will be in a partial rain shadow) and 0.7 to 1.5 inches in the mountains, north of Everett, south of Olympia, and on the coast.
So far, this spring has generally been below normal temperature-wise (with the exception of a few nice days), and that trend will continue to start May. Take a look at the NWS Climate Prediction Center temperature outlook for April 30 to May 4.
It is likely that below-average temperatures will continue to start May. However, the bright side is that while temperatures are below average, they are still increasing, and highs above 55° are much more likely in May than in April during these below average setups. The overall pattern above shows a classic La Niña setup, with below average temperatures over the entire Northern US, and much above average temperatures in the South and parts of the Southwest & Plains.
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Find information about the upcoming Northwest Weather Workshop (May 7th, Zoom meeting) below:
This is a very informative & educational meeting of Pacific Northwest weather enthusiasts, and I highly recommend registering for the free meeting!
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