Thunderstorm Wind in Clearwater County, Idaho

Thunderstorm Wind July 31, 2010 · Clearwater County, Idaho

58 mph

Estimated gust (50 kt)

Where the report was made, with tornadoes recorded within 15 miles over the years.

What the National Weather Service wrote

A trained spotter reported several pine trees bent down/over with branches estimated at six inches in diameter broken off of trees from reported thunderstorm winds.

The wider storm

Instability and increasing flow aloft combined with an upper low and moisture over north central Oregon produced favorable conditions for severe thunderstorms across the northern Rockies. The main threat with these storms was for large hail, ranging in size from 0.75 inches in diameter up to 1.75 inches in diameter. Heavy rain also accompanied these storms.

Began near Greer (46.4500, -116.1400).

Source: NOAA Storm Events Database, event 252777. Narratives are written by the National Weather Service forecast office that issued the report.

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