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Ended official alertUpdated

Air Quality Alert for Blaine, MT; Cascade, MT; Chouteau, MT +18 more

This alert has ended.Kept for recent context. Do not use it as a current warning.

Official alert fields

What you need to know

Effective
Ended
Official severity
Unknown
Official urgency
Unknown
Official certainty
Unknown

What is happening

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...

What the bulletin says to do

No separate action instruction was included in this NWS record. Read the complete official bulletin and follow local authorities.

Full official description

Bulletin details

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

Lifecycle record

Official revisions

1 captured
  1. Alert

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

    Official revision

Source and limitations

Publisher: Weather Alert Watch. Primary source: NWS Great Falls MT. This page reorganizes official fields and does not add a forecast or expand the affected area.

CAP status
Actual
Message type
Alert
Last collected
Methodology and corrections