Flood in Walla Walla County, Washington

Flood December 30, 2017 – December 31, 2017 · Walla Walla County, Washington

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

What the National Weather Service wrote

A very wet weather system brought heavy rain to the northern Blue Mountains on December 29th and 30th. Snow levels were above 7000 feet with rain amounts of 3 to 4 inches. This resulted in rapid rises in streams and creeks draining the Blue Mountains, especially in Walla Walla and Columbia Counties. The Walla Walla River near Touchet rose above flood stage on December 30, crested at 14.2 feet (flood stage is 13.0 feet) and then receded below flood stage on December 31st.

The wider storm

Heavy rain over the northern Blue Mountains resulted in significant rises on rivers and stream flowing out of the Blues.

Began near Whitman (46.0757, -118.4535).

Source: NOAA Storm Events Database, event 730407. Narratives are written by the National Weather Service forecast office that issued the report.

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