Hail in Powell County, Montana

Hail May 10, 2007 · Powell County, Montana

1.75 in

Hail diameter

$2K

Damage as recorded

Where the report was made, with tornadoes recorded within 15 miles over the years.

What the National Weather Service wrote

A member of the public reported hail stones that that were between quarter and golfball in size. Damage to a couple of cars was observed.

The wider storm

On May 10, a strong, negatively tilted upper level short wave trough moved Northeast across the area. Strong surface-based instability and mid-level jet support led to supercell development as the system interracted with a thermal trough that was positioned over the area.

Began near Avon (46.6000, -112.6000).

Source: NOAA Storm Events Database, event 22887. Narratives are written by the National Weather Service forecast office that issued the report.

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