Flash Flood — Gilliam, Oregon

2012-04-23 · near Mayville, Gilliam, Oregon

Event narrative

Flash flood washed out Armstrong Road and Thirty mile road and moved large amounts of debris including large boulders. A fiber optic communications line was cut which caused phone outage for hundreds of customers. A cow and calf were swept away in the flash flood.

Wider weather episode

An upper level disturbance moving north on the back side of an upper level ridge combined with a very moist atmosphere to produce local severe thunderstorms and flooding.

View location on OpenStreetMap → (45.1610, -120.4670)

Source: NOAA Storm Events Database, event_id 368595. Narrative written by the NWS forecast office that issued the report.