Heavy Rain — Silver Bow, Montana

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

Event narrative

The Public Works Department reported .75 inch hail and estimated one inch of rain in about 30 minutes in Butte. Water was flowing down the streets.

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 → (46.0000, -112.5300)

Source: NOAA Storm Events Database, event_id 192655. Narrative written by the NWS forecast office that issued the report.