Flash Flood in Lemhi County, Idaho

Flash Flood August 9, 2013 · Lemhi County, Idaho

$1K

Damage as recorded

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

What the National Weather Service wrote

A flash flood occurred in the lower Colson Creek area in northwestern Lemhi County over part of the old 2012 Mustang fire burn scar. Colson Creek Rd. and Road 30 needed to be graded afterwards to permit safe vehicle passage. Up to one foot of debris deposited on roads in several places. Also the increased flow, up to 2 feet in Colson Creek, broke up a temporary earthen dam that emptied a pond.

The wider storm

Slow moving multicellular thunderstorms along a wave of monsoon moisture produced heavy rain and subsequent flash flooding over the old 2012 Mustang burn scar in Lemhi County. A microburst was reported over the Gold Pan fire.

Began near Shoup (45.3010, -114.5360).

Source: NOAA Storm Events Database, event 472144. Narratives are written by the National Weather Service forecast office that issued the report.

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