Flash Flood in Chelan County, Washington

Flash Flood September 8, 2019 · Chelan County, Washington

$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 Flash Flood occurred on the Entiat River Road northwest of Ardenvior where it passes near the Cougar Creek 2018 burn scar. The flood deposited 6 to 7 feet of mud and debris across the road. A nearby weather spotter measured 1.2 inches of rain fall from the storm believed to have caused this nocturnal flash flood. Time estimated from radar data.

The wider storm

From September 8th through September 11th a slow moving upper level low pressure with a shield of wrap around Pacific moisture passed through eastern Washington and north Idaho. Areas of moderate to locally heavy rain showers and a few thunderstorms ranged through out the region during this cool and unstable wet period. Locally heavy rain caused a few Flash Floods and numerous Debris Flows in the Cascades east slopes region and some local flooding near Pullman.

Began near Ardenvoir (47.8102, -120.4194).

Source: NOAA Storm Events Database, event 855385. Narratives are written by the National Weather Service forecast office that issued the report.

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