Back to All Alerts
🟠Severe
High Wind Warning
Southern Rocky Mountain Front; Upper Blackfoot and MacDonald Pass
High Wind Warning issued March 19 at 2:22PM MDT until March 21 at 12:00PM MDT by NWS Great Falls MT
Alert Description
* WHAT...West winds 30 to 40 mph with gusts up to 85 mph expected. * WHERE...Upper Blackfoot and MacDonald Pass and Southern Rocky Mountain Front. * WHEN...From 6 AM Friday to noon MDT Saturday. * IMPACTS...High winds may move loose debris, damage property and cause power outages. Travel could be difficult, especially for high profile vehicles.
Safety Instructions
People are urged to secure loose objects that could be blown around or damaged by the wind. Remember, a High Wind Warning means that there is at least an 80% chance of 40 mph sustained winds or 58 mph wind gusts occurring during the warning period.
Time Information
Effective
Mar 20, 2026, 12:00 PM
Expires
Mar 20, 2026, 11:30 AM
Issued
Mar 19, 2026, 8:22 PM
Alert Details
Severity
Severe
Urgency
Expected
Certainty
Likely
Category
Met
Issued By
NWS Great Falls MT
National Weather Service