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Teton County

Red Flag Warning issued August 10 at 2:02AM MDT until August 10 at 9:00PM MDT by NWS Pocatello ID

2:02 AM — 9:00 PM

* AFFECTED AREA...Fire Weather Zone 410 Upper Snake River Valley/Idaho Falls BLM and Fire Weather Zone 425 Middle Snake River Valley/Twin Falls BLM north of the Snake River. * WIND...West 15 to 25 mph with gusts up to 35 mph. * HUMIDITY...As low as 8 percent. * IMPACTS...Wind reaching these speeds and humidity drier than 15 percent can result in rapid fire spread and extreme wildfire intensity.

Air Quality Alert issued August 10 at 11:30AM MDT by NWS Riverton WY

11:30 AM — August 11th, 12:00 PM

The following message is transmitted on behalf of the Wyoming Department of Environmental Quality, Air Quality Division, and the Wyoming Department of Health. * WHAT...Air Quality Alert for Wildfire Smoke. * WHERE...Northern Wyoming and portions of central Wyoming. * WHEN...Until 12 PM Tuesday. * IMPACTS...Smoke from western United States wildfires and the Weiser Knoll fire continues to be observed across much of western and central Wyoming. The smoke is limiting visibilities at times. HEALTH INFORMATION...The Wyoming Department of Health recommends that the elderly, young children, and individuals with respiratory problems avoid excessive physical exertion and minimize outdoor activities during this time. Wildfire smoke is made up of a variety of pollutants, including particulate matter and ozone, which can cause respiratory health effects. Although these people are most susceptible to health impacts, the Department of Health also advises that everyone should avoid prolonged exposure to poor air quality conditions. CURRENT CONDITIONS...The Wyoming Department of Environmental Quality, Air Quality Division offers near real-time air quality data for Wyoming's monitoring stations and health effects information to help the public interpret current conditions. Current air quality conditions across the state of Wyoming can be found at http://www.wyvisnet.com/.

Air Quality Alert issued August 10 at 7:30AM MDT by NWS Great Falls MT

7:30 AM — August 11th, 9:00 AM

AQAMT The Montana Department of Environmental Quality has issued an air quality alert for Beaverhead, Broadwater, Deer Lodge, Flathead, Gallatin, Granite, Jefferson, Lake, Lewis and Clark, Lincoln, Madison, Mineral, Missoula, Park, Powell, Ravalli, Silver Bow, Sweet Grass, Sanders, Yellowstone counties in effect until 9AM on 08/11/2026 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 7AM on 08/10/2026, particulate levels in Columbia Falls, Frenchtown, Libby and Missoula are Unhealthy. As of 7AM on 08/10/2026, particulate levels in Billings, Dillon, Great Falls, Helena and Thompson Falls are Unhealthy for Sensitive Groups. As of 7AM on 08/10/2026, particulate levels in Butte, Cut Bank, Hamilton, Lewistown and Sleeping Giant 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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