Hail in Powell County, Montana
Hail July 17, 2013 · Powell County, Montana
Where the report was made, with tornadoes recorded within 15 miles over the years.
What the National Weather Service wrote
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.
The wider storm
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.
Began near Avon (46.6802, -112.5316).
Source: NOAA Storm Events Database, event 471847. Narratives are written by the National Weather Service forecast office that issued the report.
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