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Winter Storm in Western Columbia River Gorge, Washington

Winter Storm November 29, 2010 – November 30, 2010 · Western Columbia River Gorge, Washington

What the National Weather Service wrote

A trained spotter, SA-26, from Carson, Washington reported 7 inches of new snow accumulation between 20:00 PST on November 29th and 08:00 PST on November 30th. Another spotter, SA-10, from Stevenson, Washington reported 1/4 inch ice accumulation between 04:00 PST and 09:00 PST on November 30th.

The wider storm

A cold easterly wind through the Columbia River Gorge was keeping cold air trapped in the Gorge as a strong Pacific frontal system moved inland. This system spread precipitation over the Gorge starting as snow and changing over to freezing rain as the air mass warmed.

Source: NOAA Storm Events Database, event 268672. Narratives are written by the National Weather Service forecast office that issued the report.

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