Hail — Granite, Montana

2017-05-06 · near Southern Cross, Granite, Montana

Event narrative

A local resident reported ground covered with quarter-sized hail. A few strikes of lightning accompanied the storm.

Wider weather episode

One isolated severe thunderstorm tracked NE from Lost Trail to Georgetown Lake to Garrison to Elliston and eventually Great Falls. Strong shear and modest instability allowed for the storm to maintain its structure and become a long-tracked super cell. Both wind and hail damage were reported throughout the track, with one fatality blamed on the storm as a wind gust blew over a tree onto a woman near Elliston.

View location on OpenStreetMap → (46.1383, -113.3902)

Source: NOAA Storm Events Database, event_id 687398. Narrative written by the NWS forecast office that issued the report.