Winter Storm — Southern Big Horn, Montana

2025-01-22 to 2025-01-23 · Southern Big Horn, Montana

Event narrative

Snowfall, combined with wind gusts to 50 mph, resulted in visibilities of a quarter mile.

Numerous accidents were reported on I-90 resulting in an emergency travel only designation.

Wider weather episode

An unstable northwest flow aloft brought a round of heavy snow and difficult travel conditions to the higher hills of south central Montana.

Source: NOAA Storm Events Database, event_id 1225319. Narrative written by the NWS forecast office that issued the report.