Heavy Rain — Silver Bow, Montana

2009-08-06 · near Butte, Silver Bow, Montana

Event narrative

Seven thenths of an inch of rain fell in 24 minutes at Bert Mooney Airport.

Wider weather episode

A strong low pressure system and associated cold front moved into the Northern Rockies, creating a favorable environment for strong hail producing thunderstorms and heavy rain. Flash flooding was reported in the city of Butte with this event as up to an inch of precipitation occurred in 30 to 45 minutes. Hail up to the size of baseballs and strong winds nearing 70 mph were also observed.

View location on OpenStreetMap → (45.9900, -112.5300)

Source: NOAA Storm Events Database, event_id 192656. Narrative written by the NWS forecast office that issued the report.