Flash Flood — Okanogan, Washington

2022-06-03 · near Old Toroda, Okanogan, Washington

Event narrative

Heavy rain over the Walker Creek Burn Scar created a debris flow. The radar estimated precipitation rates of 2-3.5 inches were observed close to the location of flash flooding on Bonaparte Lake Road. Three homes and several vehicles were damaged. Power outage lasted around 4 hours.

Wider weather episode

A deep upper level low over the Gulf of Alaska pushed nearly 200% of normal precipitable water into the Inland Northwest. It generated widespread thunderstorm activity. The steering flow of the storms was slow. It allowed the storms to rain large amounts.

View location on OpenStreetMap → (48.7343, -119.0784)

Source: NOAA Storm Events Database, event_id 1041836. Narrative written by the NWS forecast office that issued the report.