Great Falls, MT Warnings, Watches and Advisories

Lake Wind Advisory issued September 12 at 10:59PM MDT until September 14 at 12:00AM MDT by NWS Glasgow MT

* WHAT...Southeast winds 15 to 25 mph with gusts up to 35 mph expected. * WHERE...Central and Southeast Phillips, Central and Southern Valley, Garfield, McCone, and Petroleum Counties. * WHEN...From 10 AM Sunday to midnight MDT Sunday Night. * IMPACTS...Strong winds and rough waves on area lakes will create hazardous conditions for small craft.

High Wind Warning issued September 12 at 10:43PM MDT until September 13 at 6:00PM MDT by NWS Great Falls MT

* WHAT...Southwest winds 30 to 40 mph, with gusts up to 60 mph expected. * WHERE...Madison River Valley. Including the Highway 287 corridor from Ennis to Norris Hill. * WHEN...From Noon to 6 PM MDT Sunday. * IMPACTS...Travel could be difficult, especially for high profile vehicles.

High Wind Watch issued September 12 at 10:43PM MDT until September 14 at 6:00PM MDT by NWS Great Falls MT

* WHAT...West winds 30 to 40 mph, with gusts up to 60 mph possible. * WHERE...Snowy and Judith Mountains and Fergus County below 4500ft. * WHEN...From Monday morning through Monday afternoon. * IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel could be difficult, especially for high profile vehicles.

High Wind Watch issued September 12 at 10:43PM MDT until September 14 at 6:00PM MDT by NWS Great Falls MT

* WHAT...West winds 30 to 40 mph, with gusts up to 60 mph possible. * WHERE...Judith Basin County and Judith Gap. * WHEN...From Monday morning through Monday afternoon. * IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel could be difficult, especially for high profile vehicles.

Red Flag Warning issued September 12 at 9:15AM MDT until September 13 at 9:00PM MDT by NWS Missoula MT

...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT SUNDAY DUE TO WIND AND LOW RELATIVE HUMIDITY FOR EAST BEAVERHEAD... The National Weather Service in Missoula MT has issued a Red Flag Warning in effect from noon to 9 PM MDT Sunday. * AFFECTED AREA...Fire Weather Zone 111. * TIMING...From noon to 9 PM MDT Sunday. * WINDS...Southwest winds 20 to 30 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...Relative Humidity between 15 to 25 percent. * IMPACTS...Any fires that develop will spread rapidly. Outdoor burning is not recommended.

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.