Heavy Snow — Little Rocky Mountains, Montana

2022-04-12 to 2022-04-13 · Little Rocky Mountains, Montana

Event narrative

A trained spotter reported an estimated 12.0 inches of snowfall in Zortman. Times are estimated.

Wider weather episode

An upper level Low tracked through southern Montana. An inverted trough on the northwest side of this feature caused significant snow to fall over Eastern Montana and North Dakota. Strong winds from the pressure gradient of this storm caused widespread blizzard conditions.

Source: NOAA Storm Events Database, event_id 1017460. Narrative written by the NWS forecast office that issued the report.