Od: 11.08.2026, 12:00
Do: 11.08.2026, 21:00

The National Weather Service in Riverton has issued a Red Flag Warning, which is in effect from noon today to 9 PM MDT this evening. * IMPACTS: Low Humidities...Hot Temperatures...and Strong Gusty Winds...could cause erratic fire behavior. * AFFECTED AREA: In Northwest WY...Fire Weather Zone 140. * COUNTIES AFFECTED: In Northwest WY...Yellowstone National Park. * WIND: West 10 to 15 mph with gusts up to 30 mph. * HUMIDITY: As low as 14 percent. * TEMPERATURES: Highs in the upper 70s.

Od: 10.08.2026, 11:30
Do: 11.08.2026, 12:00

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/.

Od: 11.08.2026, 08:15
Do: 12.08.2026, 09:00

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