by Alfred Charles, KOMONews.com Executive ProducerThursday, November 11th 2021
https://imasdk.googleapis.com/js/core/bridge3.489.0_en.html#goog_2055062974Volume 90%Radar Thursday afternoon shows a line of moisture moving into Western Washington that will dump heavy rain on Seattle.
A system that is expected to dump several inches of rain on an already soggy Seattle area is expected to raise the risk of flooding for much of Puget Sound, starting Thursday and lasting well into Friday night.
KOMO News meteorologist Shannon O’Donnell said we can thank an atmospheric river for the additional precipitation, which she said is defined as “a long plume of moisture that carries copious amounts of precipitation from the subtropics toward the mid and upper latitudes. Heavy, warm rain, especially when combined with melting snow, can quickly lead to severe river flooding.”
Medium Pacific Satellite
And there is a specific type of atmospheric river, known as a Pineapple Express.
“It is a specific type of atmospheric river…
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