Flash Flood in Whitman County, Washington

Flash Flood April 12, 2026 · Whitman County, Washington

$10K

Damage as recorded

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

What the National Weather Service wrote

Large road washout on Green Hollow Road at MP5, with large boulders in road and mud flowing across road.

The wider storm

Area had slow moving thunderstorms producing a radar estimated one to two inches of rain. Soil was already saturated from melting snow. Rain gauges in the area recorded 0.3 to 0.7 inches of rain. The gauges were not in the area impacted.

Began near Manning (46.9500, -117.4000).

Source: NOAA Storm Events Database, event 1333637. Narratives are written by the National Weather Service forecast office that issued the report.

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