Flood — Walla Walla, Washington

2017-12-30 to 2017-12-31 · near Whitman, Walla Walla, Washington

Event narrative

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.

Wider weather episode

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

View location on OpenStreetMap → (46.0757, -118.4535)

Source: NOAA Storm Events Database, event_id 730407. Narrative written by the NWS forecast office that issued the report.