Hail — Powell, Montana

2013-07-17 · near Avon, Powell, Montana

Event narrative

A very large right-moving supercell unleashed up to ping pong sized hail that decimated a four to five foot tall hay crop. The hail covered the ground to a depth of 2 inches in spots. At least 10 windows were broken. Paint was chipped off from homes. Other damage included a greenhouse roof, vehicle windows and vegetation.

Wider weather episode

A mid-level southwest 50 knot jet maximum combined with high moisture and very warm temperatures provided the prime environment for strong supercells. These cells brought both severe wind and hail.

View location on OpenStreetMap → (46.6802, -112.5316)

Source: NOAA Storm Events Database, event_id 471847. Narrative written by the NWS forecast office that issued the report.