Hail in Walla Walla County, Washington

Hail July 13, 2012 · Walla Walla County, Washington

1 in

Hail diameter

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

What the National Weather Service wrote

Accompanied by winds 50 to 60 mph and heavy rainfall.

The wider storm

A slow moving upper level low pressure area combined with daytime heating and abundant moisture to produce locally severe thunderstorms and heavy rainfall. On July 14th, heavy rainfall caused mudslide and water across highway 14 between Patterson and Roosevelt which closed the road and the Amtrak railway for several hours.

Began near Kooskooskie (46.0600, -118.0400).

Source: NOAA Storm Events Database, event 383826. Narratives are written by the National Weather Service forecast office that issued the report.

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