Heavy Snow — Eastern Toole and Liberty, Montana

2025-12-12 to 2025-12-13 · Eastern Toole and Liberty, Montana

Event narrative

A coop observer in Chinook measured storm total snow of 8.9 inches over two reports. The start, criteria, and end times are estimated.

Wider weather episode

An initial Canadian cold front brought a much colder airmass southward through North-central Montana to nearly the I-90 corridor on the 11th. As a mid level warm front overran this airmass, instances of heavy snow were observed from the 12th into the 13th. Cold air near the surface and warm nose aloft between the Helena area and Townsend area resulted in significant icing the morning of the 12th.

Source: NOAA Storm Events Database, event_id 1300733. Narrative written by the NWS forecast office that issued the report.