8:54 PM
— August 11th, 3:00 PM
* IMPACTS: Low Humidities...Hot Temperatures...and Strong Gusty
Winds could cause erratic fire behavior.
* AFFECTED AREA:
In Northwest WY...Fire Weather Zone 286.
* COUNTIES AFFECTED:
In Central WY...Fremont.
In North Central WY...Hot Springs...Park.
* WIND: West 10 to 20 mph with gusts up to 35 mph.
* HUMIDITY: As low as 12 percent.
* TEMPERATURES: Lows in the lower 50s. Highs in the upper 70s.
8:54 PM
— August 11th, 3:00 PM
* IMPACTS: Low Humidities...Hot Temperatures...and Strong Gusty
Winds could cause erratic fire behavior.
* AFFECTED AREA:
In Northwest WY...Fire Weather Zone 286.
* COUNTIES AFFECTED:
In Central WY...Fremont.
In North Central WY...Hot Springs...Park.
* WIND: West 10 to 20 mph with gusts up to 35 mph.
* HUMIDITY: As low as 12 percent.
* TEMPERATURES: Lows in the lower 50s. Highs in the upper 70s.
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/.
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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Shoshone National Forest
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