Flood in Walla Walla County, Washington

Flood February 21, 2017 · Walla Walla 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

Mild temperatures February 9 -13 allowed an initial snow melt and heavy rain caused rapid melting and increased runoff across northern Walla Walla County. This area had a snow pack of 5-10 inches on February 15, with much of it melted by February 21. Rain amounts of 0.50 to 0.75 were seen on February 16 and temperatures remained above freezing through February 22 with additional rain amounts of 0.50 to 1.00 inches on February 21-22. Numerous county roads had washouts, erosion, slides and undermining.

The wider storm

Rapid melting of low elevation snow pack with heavy rain cause flooding across portions of southeast Washington.

Began near Chew (46.5821, -118.2579).

Source: NOAA Storm Events Database, event 683405. Narratives are written by the National Weather Service forecast office that issued the report.

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