Heavy Rain — Powell, Montana

2014-08-15 · near Deer Lodge, Powell, Montana

Event narrative

A trained spotter measured 0.80 of rainfall in 20 minutes due to a thunderstorm.

Wider weather episode

Several upper level waves moved from south to north during the day around an upper level low that was centered between central Washington and Oregon. One of these impulses initiated thunderstorms across southwest Montana and brought hail and heavy rainfall especially to the Interstate 90 corridor between Garrison and Butte.

View location on OpenStreetMap → (46.4000, -112.7410)

Source: NOAA Storm Events Database, event_id 538605. Narrative written by the NWS forecast office that issued the report.