Public Safety Alerts

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Public Safety Alerts

Montana Severe Extreme Heat Warning | Effective 07/27/2026 12:05

Extreme Heat Warning issued July 27 at 1:05PM MDT until July 27 at 10:00PM MDT by NWS Glasgow MT

Event: Extreme Heat Warning

Desc: * WHAT...Dangerously hot conditions with high temperatures near 100 expected. * WHERE...Dawson, Prairie, and Wibaux Counties. * WHEN...Until 10 PM MDT this evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

Areas: Dawson County MT, Prairie County MT, Wibaux County MT

Severity: Severe

Urgency: Expected

Effective: Monday, July 27, 2026 - 12:05

Expires: Monday, July 27, 2026 - 21:00

Sender: w-nws.webmaster@noaa.gov

Montana Severe Extreme Heat Warning | Effective 07/27/2026 10:46

Extreme Heat Warning issued July 27 at 11:46AM MDT until July 28 at 12:00AM MDT by NWS Billings MT

Event: Extreme Heat Warning

Desc: * WHAT...For the Extreme Heat Warning, dangerously hot conditions with temperatures up to 102 occurring. For the Heat Advisory, temperatures up to 97 expected. * WHERE...Custer. * WHEN...For the Extreme Heat Warning, until midnight MDT tonight. For the Heat Advisory, from midnight tonight to midnight MDT Tuesday Night. *...

Areas: Custer County MT

Severity: Severe

Urgency: Expected

Effective: Monday, July 27, 2026 - 10:46

Expires: Tuesday, July 28, 2026 - 11:00

Sender: w-nws.webmaster@noaa.gov

Montana Moderate Heat Advisory | Effective 07/27/2026 10:46

Heat Advisory issued July 27 at 11:46AM MDT until July 29 at 12:00AM MDT by NWS Billings MT

Event: Heat Advisory

Desc: * WHAT...Temperatures up to 95 expected. * WHERE...Bighorn Canyon, Treasure, and Northern Rosebud. * WHEN...Until midnight MDT Tuesday Night. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Hot daytime temperatures combined with warm overnight low temperatures will produce cumulative heat stress....

Areas: Treasure County MT, Rosebud County MT, Big Horn County MT, Carbon County MT

Severity: Moderate

Urgency: Expected

Effective: Monday, July 27, 2026 - 10:46

Expires: Tuesday, July 28, 2026 - 11:00

Sender: w-nws.webmaster@noaa.gov

Montana Moderate Heat Advisory | Effective 07/27/2026 10:46

Heat Advisory issued July 27 at 11:46AM MDT until July 29 at 12:00AM MDT by NWS Billings MT

Event: Heat Advisory

Areas: Custer County MT

Severity: Moderate

Urgency: Expected

Effective: Monday, July 27, 2026 - 10:46

Expires: Tuesday, July 28, 2026 - 11:00

Sender: w-nws.webmaster@noaa.gov

Montana Moderate Heat Advisory | Effective 07/27/2026 10:46

Heat Advisory issued July 27 at 11:46AM MDT until July 28 at 12:00AM MDT by NWS Billings MT

Event: Heat Advisory

Desc: * WHAT...Temperatures up to 98 occurring. * WHERE...Powder River and Southern Rosebud. * WHEN...Until midnight MDT tonight. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Hot daytime temperatures combined with warm overnight low temperatures will produce cumulative heat stress. This heat stress...

Areas: Powder River County MT, Rosebud County MT

Severity: Moderate

Urgency: Expected

Effective: Monday, July 27, 2026 - 10:46

Expires: Monday, July 27, 2026 - 23:00

Sender: w-nws.webmaster@noaa.gov

Montana Severe Extreme Heat Warning | Effective 07/27/2026 10:46

Extreme Heat Warning issued July 27 at 11:46AM MDT until July 28 at 12:00AM MDT by NWS Billings MT

Event: Extreme Heat Warning

Desc: * WHAT...Dangerously hot conditions with temperatures up to 102 occurring. * WHERE...Carter and Fallon. * WHEN...Until midnight MDT tonight. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Hot daytime temperatures combined with warm overnight low temperatures will produce cumulative heat stress....

Areas: Fallon County MT, Carter County MT

Severity: Severe

Urgency: Expected

Effective: Monday, July 27, 2026 - 10:46

Expires: Monday, July 27, 2026 - 23:00

Sender: w-nws.webmaster@noaa.gov

Montana Unknown Air Quality Alert | Effective 07/27/2026 07:30

Air Quality Alert issued July 27 at 8:30AM MDT by NWS Great Falls MT

Event: Air Quality Alert

Desc: AQAMT The Montana Department of Environmental Quality has issued an air quality alert for Blaine, Cascade, Chouteau, Deer Lodge, Fergus, Glacier, Granite, Hill, Judith Bsain, Lake, Lewis and Clark, Liberty, Missoula, Petroleum, Pondera, Powell, Ravalli, Silver Bow, Teton, Toole, Phillips counties in effect until 9AM on 07/28/2026...

Areas: Blaine County MT, Cascade County MT, Chouteau County MT, Deer Lodge County MT, Fergus County MT, Glacier County MT, Granite County MT, Hill County MT, Judith Basin County MT, Lake County MT, Lewis and Clark County MT, Liberty County MT, Missoula County MT, Petroleum County MT, Phillips County MT, Pondera County MT, Powell County MT, Ravalli County MT, Silver Bow County MT, Teton County MT, Toole County MT

Severity: Unknown

Urgency: Unknown

Effective: Monday, July 27, 2026 - 07:30

Expires: Tuesday, July 28, 2026 - 08:00

Sender: w-nws.webmaster@noaa.gov

Montana Unknown Air Quality Alert | Effective 07/27/2026 07:43

Air Quality Alert issued July 27 at 8:43AM MDT by NWS Great Falls MT

Event: Air Quality Alert

Desc: AQAMT The Montana Department of Environmental Quality has issued an air quality alert for Blaine, Cascade, Chouteau, Deer Lodge, Fergus, Glacier, Granite, Hill, Judith Basin, Lake, Lewis and Clark, Liberty, Missoula, Petroleum, Pondera, Powell, Ravalli, Silver Bow, Teton, Toole, Phillips counties in effect until 9AM on 07/28/2026...

Severity: Unknown

Urgency: Unknown

Effective: Monday, July 27, 2026 - 07:43

Expires: Tuesday, July 28, 2026 - 08:00

Sender: w-nws.webmaster@noaa.gov

Montana Moderate Heat Advisory | Effective 07/27/2026 00:24

Heat Advisory issued July 27 at 1:24AM MDT until July 28 at 12:00AM MDT by NWS Billings MT

Event: Heat Advisory

Desc: * WHAT...Temperatures up to 100 degrees. * WHERE...Treasure, Northern Rosebud, Powder River, and Southern Rosebud. * WHEN...Until midnight MDT tonight. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Hot daytime temperatures combined with warm overnight low temperatures will produce cumulative...

Areas: Treasure County MT, Rosebud County MT, Powder River County MT

Severity: Moderate

Urgency: Expected

Effective: Monday, July 27, 2026 - 00:24

Expires: Monday, July 27, 2026 - 23:00

Sender: w-nws.webmaster@noaa.gov

Montana Severe Extreme Heat Warning | Effective 07/27/2026 00:24

Extreme Heat Warning issued July 27 at 1:24AM MDT until July 28 at 12:00AM MDT by NWS Billings MT

Event: Extreme Heat Warning

Desc: * WHAT...Dangerously hot conditions with temperatures up to 103 degrees. * WHERE...Carter, Custer, and Fallon. * WHEN...Until midnight MDT tonight. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Dangerously hot daytime temperatures combined with warm overnight low temperatures will produce...

Areas: Custer County MT, Fallon County MT, Carter County MT

Severity: Severe

Urgency: Expected

Effective: Monday, July 27, 2026 - 00:24

Expires: Monday, July 27, 2026 - 23:00

Sender: w-nws.webmaster@noaa.gov

Montana Moderate Heat Advisory | Effective 07/27/2026 00:24

Heat Advisory issued July 27 at 1:24AM MDT until July 28 at 12:00AM MDT by NWS Billings MT

Event: Heat Advisory

Desc: * WHAT...Temperatures up to 96 degrees. * WHERE...Bighorn Canyon. * WHEN...Until midnight MDT tonight. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Hot daytime temperatures combined with warm overnight low temperatures will produce cumulative heat stress. This...

Areas: Big Horn County MT, Carbon County MT

Severity: Moderate

Urgency: Expected

Effective: Monday, July 27, 2026 - 00:24

Expires: Monday, July 27, 2026 - 23:00

Sender: w-nws.webmaster@noaa.gov

Montana Severe Extreme Heat Warning | Effective 07/26/2026 19:34

Extreme Heat Warning issued July 26 at 8:34PM MDT until July 28 at 12:00AM MDT by NWS Billings MT

Event: Extreme Heat Warning

Desc: * WHAT...Dangerously hot conditions with temperatures up to 102 degrees. * WHERE...Carter, Custer, and Fallon. * WHEN...Until midnight MDT Monday Night. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Dangerously hot daytime temperatures combined with warm overnight low temperatures will produce...

Areas: Custer County MT, Fallon County MT, Carter County MT

Severity: Severe

Urgency: Expected

Effective: Sunday, July 26, 2026 - 19:34

Expires: Monday, July 27, 2026 - 19:45

Sender: w-nws.webmaster@noaa.gov

Montana Moderate Heat Advisory | Effective 07/26/2026 19:34

Heat Advisory issued July 26 at 8:34PM MDT until July 28 at 12:00AM MDT by NWS Billings MT

Event: Heat Advisory

Desc: * WHAT...Temperatures up to 98 degrees. * WHERE...Bighorn Canyon. * WHEN...Until midnight MDT Monday Night. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Hot daytime temperatures combined with warm overnight low temperatures will produce cumulative heat stress....

Areas: Big Horn County MT, Carbon County MT

Severity: Moderate

Urgency: Expected

Effective: Sunday, July 26, 2026 - 19:34

Expires: Monday, July 27, 2026 - 19:45

Sender: w-nws.webmaster@noaa.gov

Montana Moderate Heat Advisory | Effective 07/26/2026 19:34

Heat Advisory issued July 26 at 8:34PM MDT until July 28 at 12:00AM MDT by NWS Billings MT

Event: Heat Advisory

Desc: * WHAT...Temperatures up to 100 degrees. * WHERE...Treasure, Northern Rosebud, Powder River, and Southern Rosebud. * WHEN...Until midnight MDT Monday Night. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Hot daytime temperatures combined with warm overnight low temperatures will produce...

Areas: Treasure County MT, Rosebud County MT, Powder River County MT

Severity: Moderate

Urgency: Expected

Effective: Sunday, July 26, 2026 - 19:34

Expires: Monday, July 27, 2026 - 19:45

Sender: w-nws.webmaster@noaa.gov

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Public Safety Alerts