Headline:
Winter Storm Watch issued March 12 at 12:46AM MDT until March 14 at 6:00PM MDT by NWS Great Falls MT
Event:
Winter Storm Watch
Urgency:
Future
Effective:
March 11, 2026 - 11:46pm
Expires:
March 12, 2026 - 5:00pm
Description:
* WHAT...Heavy snow possible. Total snow accumulations between 4 and
8 inches across the valley floors, with 8 to 16 inches possible in
the mountains.
* WHERE...Big Belt, Bridger and Castle Mountains, Elkhorn and
Boulder Mountains, Helena Valley, and Meagher County Valleys.
* WHEN...From this evening through Saturday afternoon.
* IMPACTS...Travel could be very difficult and tire chains may be
required for some vehicles. Those in the backcountry should ensure
they are prepared for dangerous conditions. The hazardous
conditions could impact the Thursday evening and Friday morning
commutes.
* ADDITIONAL DETAILS...This will be a mult-day snowfall, with lulls
in the snow at times.
Instruction:
Monitor the latest forecasts for updates on this situation.
Remember, a Winter Storm Watch means that there is at least a 50%
chance of impactful winter weather conditions during the watch
period.
Area Description:
Helena Valley; Big Belt, Bridger and Castle Mountains; Meagher County Valleys; Elkhorn and Boulder Mountains
Forcast Office:
NWS Great Falls MT