Porcupine Cabin

Air Quality Alert issued August 11 at 8:15AM MDT by NWS Great Falls MT

AQAMT The Montana Department of Environmental Quality has issued an air quality alert for Beaverhead, Deer Lodge, Gallatin, Granite, Madison, Park, Flathead, Jefferson, Lake, Lewis and Clark, Lincoln, Mineral, Missoula, Powell, Ravalli, and Silver Bow counties in effect until 9AM on 08/12/2026 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 8AM on 08/11/2026, particulate levels in Missoula are Unhealthy. As of 8AM on 08/11/2026, particulate levels in Dillon, Frenchtown, Great Falls and Hamilton are Unhealthy for Sensitive Groups. As of 8AM on 08/11/2026, particulate levels in Billings, Butte, Choteau, Columbia Falls, Cut Bank, Helena, Lewistown, Libby, Malta, Thompson Falls and West Yellowstone 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