Flash Flood in Whitman County, Washington

Flash Flood May 20, 2018 · Whitman County, Washington

$20K

Damage as recorded

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

What the National Weather Service wrote

Heavy rainfall from a slow moving thunderstorm during the evening of May 20th caused Flash Flooding across Ladlow Butte Road near Garfield. A car was swept off the road and into a ditch. The car's occupants were rescued without injury by bystanders. Photos taken as the flood was abating showed mud and debris over a quarter mile stretch of roadway.

The wider storm

Slow moving thunderstorms formed during the evening of May 20th over the Palouse region of Washington and Idaho. Heavy rain in the cores of these storms produced local flash flooding and debris flows in largely uninhabited rural areas but temporarily cut some highways.

Began near Grinnell (46.9693, -117.0946).

Source: NOAA Storm Events Database, event 758571. Narratives are written by the National Weather Service forecast office that issued the report.

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