Flood — Washington, Idaho

2019-04-08 to 2019-04-11 · near Cambridge, Washington, Idaho

Event narrative

The Washington County emergency manager reported moderate flooding near the U.S. Highway 95 bridge in Weiser. The flooding caused extensive damage and the closure of the highway for 4 days.

Wider weather episode

An Atmospheric River brought a persistent stream of moisture off the Pacific Ocean to West Central Idaho April 6-10. Rainfall totals of 2 to 5 inches were measured at many weather stations while snow melt added 1 to 3 inches of melt-water to the runoff. Main stem river flooding, flash flooding, and small stream flooding occurred during the event with record or near record crests observed on a number of waterways. In addition, debris flows on past years wildfire burned areas, rock slides, and mudslides occurred.

View location on OpenStreetMap → (44.5902, -116.6472)

Source: NOAA Storm Events Database, event_id 813447. Narrative written by the NWS forecast office that issued the report.