Heavy Snow — Cascades of Snohomish and King Counties, Washington

2020-01-04 to 2020-01-08 · Cascades of Snohomish and King Counties, Washington

Event narrative

Snow started in the central Cascades during the morning hours of the 4th and began to accumulate quickly. Snowfall affected both Stevens Pass and Snoqualmie Pass, with snowfall accumulation at Stevens Pass significantly higher than at Snoqualmie Pass. New snowfall at Stevens Pass of around 49 inches by January 8th and around 22 inches at Snoqualmie Pass. Stevens Pass was closed on January 6th.

Wider weather episode

After a period of light snow at the very beginning of the month, a more significant winter storm brought heavier snowfall accumulations to the mountains beginning January 4th and continuing through January 8th, prompting the issuance of a Winter Storm Warning.

Source: NOAA Storm Events Database, event_id 873196. Narrative written by the NWS forecast office that issued the report.