Winter Storm — Sun Valley Region, Idaho

2021-12-22 to 2021-12-27 · Sun Valley Region, Idaho

Event narrative

The COOP observer measured 21 inches of snow at the Ketchum site over the 24th through 27th.

Wider weather episode

An extended period of Pacific moisture influx brought large amounts of moisture into southeast Idaho with continuous periods of light to moderate snowfall occasional strong winds. The entire region was under advisories and warnings for the entire week overlapping the Christmas holiday. Several roads closed on the 26th with heavy snow amounts and strong winds.

Source: NOAA Storm Events Database, event_id 999912. Narrative written by the NWS forecast office that issued the report.