Winter Weather in Bellevue and Vicinity, Washington

CoCoRAHs observing sites around the Bellevue area reported light snow averaging around 1 inch on Dec 1st, around a half an inch on Dec 2nd, and 2-4 inches on December 3rd.

A period of wintry weather was noted across the Western Washington lowlands at the beginning of December, earlier than what is typically experienced. Snow began at the end of November with several rounds continuing through the first few days of September. While accumulations did not meet winter storm criteria Dec 1-2, widespread heavy snow accumulations were experienced on Dec 3. These conditions were largely due to Fraser outflow in the low levels. with deep upper troughing in the upper levels.