Hail — Flathead, Montana

2013-07-17 · near Kila, Flathead, Montana

Event narrative

A right-moving supercell formed 30 miles southwest of Marion and tracked northeast around 40 mph to just north of Kila. A trained spotter located 2 miles north of Kila measured penny sized hail.

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 → (48.1490, -114.4500)

Source: NOAA Storm Events Database, event_id 471840. Narrative written by the NWS forecast office that issued the report.