Heavy Snow — South Washington Cascades, Washington

2025-03-19 to 2025-03-20 · South Washington Cascades, Washington

Event narrative

The Swift Creek SNOTEL at 4440 ft recorded 19 inches of snowfall between 1700 3/19 and 2100 3/20 with 12 inches reached 1300 3/20.

Wider weather episode

An upper-level shortwave trough and accompanying occluded front followed by a shower post-frontal airmass facilitated heavy snowfall across the southwest Washington Cascades.

Source: NOAA Storm Events Database, event_id 1240180. Narrative written by the NWS forecast office that issued the report.