Heavy Snow — East Slopes of the Washington Cascades, Washington

2021-02-25 to 2021-02-27 · East Slopes of the Washington Cascades, Washington

Event narrative

The Fish Lake Snotel 20 miles N of Roslyn, WA measured 20 inches of snowfall at 740pm PST on Feb. 26th. The Potato Hill Snotel 38 miles W of White Swan, WA measured 14 inches of snowfall at 743pm PST on Feb. 26th.

Wider weather episode

A shortwave trough coupled with surface cold front swept across the forecast area on Feb. 25th, producing an initial surge in snowfall across the region with breezy to gusty winds developing behind the frontal passage. Behind this system, persistent northwest flow aloft reinforced by a series of shortwaves produced additional snowfall across the forecast area through the early afternoon of Feb. 27th.

Source: NOAA Storm Events Database, event_id 938516. Narrative written by the NWS forecast office that issued the report.