Heavy Snow — Southern Washington Cascade Foothills, Washington
2018-02-20 · Southern Washington Cascade Foothills, Washington
Event narrative
CoCoRaHS observer reported 8.0 inches of snow 9 miles north of Yacolt.
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 742343. Narrative written by the NWS forecast office that issued the report.