Hail — Walla Walla, Washington

2012-07-13 · near Kooskooskie, Walla Walla, Washington

Event narrative

Hail accompanied by heavy rainfall and wind to 40 mph.

Wider weather episode

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.

View location on OpenStreetMap → (46.0700, -118.0500)

Source: NOAA Storm Events Database, event_id 383825. Narrative written by the NWS forecast office that issued the report.