Hail — Lake, Montana

2011-07-19 · near Arlee, Lake, Montana

Event narrative

A trained spotter NNW of Arlee measured 0.88 inch hail.

Wider weather episode

A shortwave trough that had been sitting off of the Pacific Coast for a few days moved into the Northern Rockies on Tuesday afternoon. The accompaning air mass was very moist and unstable. Very strong thunderstorms developed, producin heavy rain and large hail.

View location on OpenStreetMap → (47.1500, -114.0800)

Source: NOAA Storm Events Database, event_id 331367. Narrative written by the NWS forecast office that issued the report.