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Heavy Snow in East Slopes of the Washington Cascades, Washington

Heavy Snow December 9, 2022 – December 10, 2022 · East Slopes of the Washington Cascades, Washington

What the National Weather Service wrote

A Cocorahs observer 1 mile south southwest of Trout Lake, WA measured 17.5 inches of new snow in a 24 hour period ending at 0730 PST on Dec. 10th. A trained spotter 22 miles N of White Salmon, WA measured 12.5 inches of new snow at 2135 Dec. 9th.

The wider storm

A potent upper level trough impacting the Pacific Northwest placed the region under a moist southwest flow aloft, and combined with a strong cold air pooling along the eastern slopes of the Washington Cascades, resulted in heavy snow occurring in these areas.

Source: NOAA Storm Events Database, event 1073211. Narratives are written by the National Weather Service forecast office that issued the report.

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