Heavy Snow in Grand Ronde Valley, Oregon

Heavy Snow February 25, 2021 – February 27, 2021 · Grand Ronde Valley, Oregon

What the National Weather Service wrote

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.

The wider storm

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 938527. Narratives are written by the National Weather Service forecast office that issued the report.

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