Heavy Snow — Grand Ronde Valley, Oregon

2021-02-25 to 2021-02-27 · Grand Ronde Valley, Oregon

Event narrative

A social media report originating in Cove, OR reported 10.2 inches of snowfall at 856am PST on Feb. 27th. A trained spotter 5 miles NNE of La Grande, OR reported 8 inches of snowfall at 955am 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 morning of Feb. 27th.

Source: NOAA Storm Events Database, event_id 938527. Narrative written by the NWS forecast office that issued the report.