Flood — Pacific, Washington

2015-11-17 to 2015-11-18 · near Willapa, Pacific, Washington

Event narrative

Five day rainfall totals ending in the morning of Nov 17th in the Willapa Hills were 8 to 12 inches. This rain resulted in the Willapa River to exceed flood stage around 11 pm on the 17th. The River crested at 21.12 feet which is 1.1 feet above flood stage.

Wider weather episode

A very moist frontal system produced heavy rain across the region resulting in flooding. Rain rates of 0.3 to 0.5 inch per hour was observed for several hours at many locations. The flooding was a combination of urban and small stream flooding and river flooding. The coastal rivers were already running high from a moist front that moved through a couple of days prior, and the additional rain was enough to push several of them above flood stage.

View location on OpenStreetMap → (46.6901, -123.6821)

Source: NOAA Storm Events Database, event_id 607275. Narrative written by the NWS forecast office that issued the report.