Heavy Snow — Helena Valley, Montana

2025-01-03 · Helena Valley, Montana

Event narrative

A trained spotter and a cocorahs observation both reported 6 inches new snow 4 miles North of East Helena during the daytime of the 3rd.

Wider weather episode

A moist southwesterly flow aloft overrunning a cold surface airmass across much of the region resulted in a period of moderate to heavy snow January 3rd and 4th. Snow amounts added up to around a foot in several lower elevation locations before the event concluded.

Source: NOAA Storm Events Database, event_id 1226617. Narrative written by the NWS forecast office that issued the report.