Great Falls, MT Warnings, Watches and Advisories

Do not drive vehicles through flooded areas. The water depth or fast flowing water/mud/debris from a flash flood will make road conditions unsafe. Do not rely soley on data presented here or other third-party websites - always check your official national and local weather service agency website, socials, radio and/or TV stations for making critical decisions related to weather events.

Please carefully read each posted Warning and Alert as it relates to the area(s) being affected. We may provide a wider range of issued severe weather warnings for surrounding cities and counties, so some alerts may not directly impact this location. This is done to help with preparing for severe weather that may overlap or be heading towards Great Falls.

Use the Radar Maps link provided to understand the trajectory of a storm.

Lake Wind Advisory issued October 19 at 2:14AM MDT until October 19 at 10:00AM MDT by NWS Glasgow MT

* WHAT...South winds 15 to 25 mph with gusts up to 30 mph. * WHERE...Central and Southeast Phillips, Central and Southern Valley, Garfield, McCone, and Petroleum Counties. * WHEN...Until 10 AM MDT this morning. * IMPACTS...Strong lake winds could produce rough waves which can overturn or swamp small craft.

High Wind Warning issued October 19 at 2:02AM MDT until October 19 at 6:00PM MDT by NWS Great Falls MT

* WHAT...Southwest winds 35 to 45 mph, with gusts up to 85 mph expected. * WHERE...Eastern Glacier National Park and adjacent foothills and plains. * WHEN...Until 6 PM MDT this evening. * IMPACTS...High winds may move loose debris, damage property and cause isolated power outages. Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...The most intense period of wind is expected to occur through the mid-morning hours on Saturday.

High Wind Warning issued October 19 at 2:02AM MDT until October 19 at 6:00PM MDT by NWS Great Falls MT

* WHAT...Southwest winds 30 to 40 mph with gusts up to 70 mph expected. * WHERE...Southern Rocky Mountain Front and adjacent foothills and plains. * WHEN...Until 6 PM MDT this evening. * IMPACTS...High winds may move loose debris, damage property and cause isolated power outages. Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Areas immediately adjacent to the Rocky Mountain Front will be most favored for the strongest wind gusts.

High Wind Warning issued October 19 at 2:02AM MDT until October 19 at 6:00PM MDT by NWS Great Falls MT

* WHAT...Southwest winds 30 to 40 mph, with gusts up to 60 mph expected. * WHERE...Eastern Glacier, Western Toole, and Central Pondera Counties. * WHEN...Until 6 PM MDT this evening. * IMPACTS...High winds may move loose debris, damage property and cause isolated power outages. Travel could be difficult, especially for high profile vehicles.