Heavy Snow — Sw Snohomish, Washington
2002-03-07 to 2002-03-08 · Sw Snohomish, Washington
Wider weather episode
Snow showers fell over most of western Washington, creating large traffic jams and closing some highways. Up to 5 inches of "thundersnow" fell over interstate 405, causing many people to abandon their vehicles, the ensuing traffic jam closed the highway for several hours. Parts of I-90 and I-5 were also closed. Along the coast up to 6 inches of snow fell, while other inland areas from Lewis to Whatcom county got about 2 inches.
Source: NOAA Storm Events Database, event_id 5280483. Narrative written by the NWS forecast office that issued the report.