Heavy Snow — Lower Columbia, Washington

2018-02-20 · Lower Columbia, Washington

Event narrative

Public report via Facebook of 5.0 inches of snow in Castle Rock.

Wider weather episode

A low pressure system slid down the coast and stayed offshore, pulling cold air from east of the Cascades into southwest Washington. This brought snow levels down to sea level, and moisture from the low pressure system meant snow down to sea level around Vancouver and along the lower Columbia River.

Source: NOAA Storm Events Database, event_id 742340. Narrative written by the NWS forecast office that issued the report.