Flood — Grays Harbor, Washington

2022-01-06 to 2022-01-11 · near Independence, Grays Harbor, Washington

Event narrative

Heavy rainfall of 6 to 10 inches, along with melting of remaining snow at lower elevations, lead to river flooding, significant urban and small stream flooding, and landslides. The peak of the rainfall was January 5 through January 7. Major flooding occurred on the Chehalis River and moderate flooding on the Satsop River. A motorist was stranded trying to cross a flooded road along the Chehalis River and was swept away when he left his vehicle. He was missing and presumed dead. Another man fatality occurred when an man tried to move his car out of flood danger and the car was swept away by flooding on the North River. Damages are reported and estimated; not all damages have been identified. Crop damages are unknown.

Wider weather episode

A strong and persistent upper-level low-pressure system developed over the northern Rockies and southern Canada and then slowly migrated westward while continuously directing the jet stream and primary storm track at Washington State. This strong low-pressure system resulted in a 21-day period of a series of winter storms, wind storms, and atmospheric rivers that battered Washington State in rapid succession. First there was lowland snow the last week of December. Then a wind and rainstorm Jan 3 to 4. That was followed by two atmospheric river events from Jan 5 - 7 and Jan 11- 13 that resulted in heavy rain, minor to major flooding, and landslides. 2 flood fatalities occurred, and possibly a third from a landslide.

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Source: NOAA Storm Events Database, event_id 1005540. Narrative written by the NWS forecast office that issued the report.