Heavy Rain in Granite County, Montana

Heavy Rain August 9, 2008 · Granite County, Montana

$1K

Damage as recorded

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

What the National Weather Service wrote

National Weather Service employee reported that heavy rainfall from a thunderstorms caused a rock and debris slide with some overwash onto the frontage road near Bearmouth Lodge.

The wider storm

A cold front pushed over Western Montana on the afternoon and evening of 08/09/2008. Strong shear, instability and good upper level jet support provided a good thunderstorm environment and resulted in several storms producing hail and thunderstorm wind damage.

Began near Bearmouth (46.7000, -113.2989).

Source: NOAA Storm Events Database, event 128472. Narratives are written by the National Weather Service forecast office that issued the report.

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