Flash Flood — Malheur, Oregon

2023-06-11 · near Jonesboro, Malheur, Oregon

Event narrative

A flash flood produced debris and mudflow over US Highway 20. Mud and debris up to three feet thick reported over the highway. The highway was closed for two days by ODOT to clear debris. Some old uninhabited historic houses were also flooded in the area.

Wider weather episode

A nearly stationary upper level low over the Four Corners region brought periods of heavy rain and thunderstorms over multiple days which caused localized urban flooding in Malheur County, OR. This caused a debris flow over Highway 20 near Juntura, OR which closed the highway for several days.

View location on OpenStreetMap → (43.8000, -117.9300)

Source: NOAA Storm Events Database, event_id 1108885. Narrative written by the NWS forecast office that issued the report.