Flash Flood in Valley County, Idaho

Flash Flood September 23, 2007 · Valley County, Idaho

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

What the National Weather Service wrote

Heavy Rain Accumlations Estimated Near 1.5 inches with 0.38 Inches Occuring Between 2 AM and 3 AM on Portions of the Cascade Complex Burn Area Caused a Debris Flow with Water, Mud, and Rocks Flowing on to Forest Service Road 579 about 4 Miles North of Deadwood Lodge.

The wider storm

A warm moist flow ahead of a slow moving cold front fed a broad precipitation field including embedded convection over Idaho. 24 hour rainfall amounts were generally an inch to an inch and one half with locally heavier amounts of 2 inches. Some locations received over an inch of rain during a 9 hour period and over a third of an inch in one hour. Mountain locations above 8000 feet received 4 to 8 inches of snow.

Began near Warm Lake (44.4500, -115.5800).

Source: NOAA Storm Events Database, event 55133. Narratives are written by the National Weather Service forecast office that issued the report.

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