Air Quality Alert issued July 27 at 8:30AM MDT by NWS Great Falls MT
Now
From Today 08:30 (27 minutes ago)
Until Tomorrow 09:00 (1 day from now)
Official warning explanations:

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 An Air Quality Alert means that particulates have been trending upwards and that an exceedance of the 24 hour National Ambient Air Quality Standard (NAAQS) has occurred or may occur in the near future.

Elevated particulate levels from wildfire smoke

As of 6AM on 07/27/2026, particulate levels in Havre and Malta are Unhealthy.

As of 6AM on 07/27/2026, particulate levels in Butte, Great Falls, Hamilton, Helena, Lewistown and Sleeping Giant are Unhealthy for Sensitive Groups.

As of 6AM on 07/27/2026, particulate levels in Columbia Falls, Cut Bank, Dillon, Frenchtown, Libby, Missoula and Thompson Falls are Moderate.

When air quality is Unhealthy, State and local health officials recommend that people with respiratory or heart disease, the elderly, and children should avoid prolonged exertion; everyone else should limit prolonged exertion.

When air quality is Unhealthy for Sensitive Groups, State and local health officials recommend that people with respiratory or heart disease, the elderly and children should limit prolonged exertion.

When air quality is Moderate, State and local health officials recommend that unusually sensitive people should consider reducing prolonged or heavy exertion.

For more information visit the Montana Department of Environmental Quality at http://todaysair.mtdeq.us

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 An Air Quality Alert means that particulates have been trending upwards and that an exceedance of the 24 hour National Ambient Air Quality Standard (NAAQS) has occurred or may occur in the near future. Elevated particulate levels from wildfire smoke As of 6AM on 07/27/2026, particulate levels in Havre and Malta are Unhealthy. As of 6AM on 07/27/2026, particulate levels in Butte, Great Falls, Hamilton, Helena, Lewistown and Sleeping Giant are Unhealthy for Sensitive Groups. As of 6AM on 07/27/2026, particulate levels in Columbia Falls, Cut Bank, Dillon, Frenchtown, Libby, Missoula and Thompson Falls are Moderate. When air quality is Unhealthy... State and local health officials recommend that people with respiratory or heart disease, the elderly, and children should avoid prolonged exertion; everyone else should limit prolonged exertion. When air quality is Unhealthy for Sensitive Groups... State and local health officials recommend that people with respiratory or heart disease, the elderly and children should limit prolonged exertion. When air quality is Moderate... State and local health officials recommend that unusually sensitive people should consider reducing prolonged or heavy exertion. For more information visit the Montana Department of Environmental Quality at http://todaysair.mtdeq.us

Air Quality Alert issued July 27 at 8:43AM MDT by NWS Great Falls MT
Now
From Today 08:43 (14 minutes ago)
Until Tomorrow 09:00 (1 day from now)
Official warning explanations:

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 An Air Quality Alert means that particulates have been trending upwards and that an exceedance of the 24 hour National Ambient Air Quality Standard (NAAQS) has occurred or may occur in the near future.

Elevated particulate levels from wildfire smoke

As of 6AM on 07/27/2026, particulate levels in Havre and Malta are Unhealthy.

As of 6AM on 07/27/2026, particulate levels in Butte, Great Falls, Hamilton, Helena, Lewistown and Sleeping Giant are Unhealthy for Sensitive Groups.

As of 6AM on 07/27/2026, particulate levels in Columbia Falls, Cut Bank, Dillon, Frenchtown, Libby, Missoula and Thompson Falls are Moderate.

When air quality is Unhealthy, State and local health officials recommend that people with respiratory or heart disease, the elderly, and children should avoid prolonged exertion; everyone else should limit prolonged exertion.

When air quality is Unhealthy for Sensitive Groups, State and local health officials recommend that people with respiratory or heart disease, the elderly and children should limit prolonged exertion.

When air quality is Moderate, State and local health officials recommend that unusually sensitive people should consider reducing prolonged or heavy exertion.

For more information visit the Montana Department of Environmental Quality at http://todaysair.mtdeq.us

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 An Air Quality Alert means that particulates have been trending upwards and that an exceedance of the 24 hour National Ambient Air Quality Standard (NAAQS) has occurred or may occur in the near future. Elevated particulate levels from wildfire smoke As of 6AM on 07/27/2026, particulate levels in Havre and Malta are Unhealthy. As of 6AM on 07/27/2026, particulate levels in Butte, Great Falls, Hamilton, Helena, Lewistown and Sleeping Giant are Unhealthy for Sensitive Groups. As of 6AM on 07/27/2026, particulate levels in Columbia Falls, Cut Bank, Dillon, Frenchtown, Libby, Missoula and Thompson Falls are Moderate. When air quality is Unhealthy... State and local health officials recommend that people with respiratory or heart disease, the elderly, and children should avoid prolonged exertion; everyone else should limit prolonged exertion. When air quality is Unhealthy for Sensitive Groups... State and local health officials recommend that people with respiratory or heart disease, the elderly and children should limit prolonged exertion. When air quality is Moderate... State and local health officials recommend that unusually sensitive people should consider reducing prolonged or heavy exertion. For more information visit the Montana Department of Environmental Quality at http://todaysair.mtdeq.us

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