Heavy Snow — Gates of the Mountains, Montana

2025-04-01 · Gates of the Mountains, Montana

Event narrative

NWS employee reports an estimated 8 inches new snow near Hardy Creek exit on I-15. Event spanned two months, hence a start time of midnight.

Wider weather episode

A more convective type of rain/snow transitioned to be more stratiform across the region as several embedded waves within broad cyclonic flow consolidated across the region. Uncertainty was high with this system, closely related to how quickly snow levels fell across the region. Several areas saw snow in excess of 10 inches, including a snotel estimating 17 inches new snow in Jefferson County.

Source: NOAA Storm Events Database, event_id 1257625. Narrative written by the NWS forecast office that issued the report.