Air Quality Alert
Issued by NWS Riverton, WY

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693
AEUS75 KRIW 191706
AQARIW

Air Quality Alert Message
Relayed by National Weather Service Riverton WY
1106 AM MDT Tue Aug 19 2025

WYZ004>007-201900-
North Bighorn Basin-Southwest Bighorn Basin-Southeast Bighorn Basin-
Owl Creek and Bridger Mountains-
Including the cities of Basin, Greybull, Lovell, Powell, Shell,
Thermopolis, Ten Sleep, and Worland
1106 AM MDT Tue Aug 19 2025

...AIR QUALITY ALERT IN EFFECT UNTIL 1 PM MDT WEDNESDAY...

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...Portions of the Bighorn Basin and the Owl Creek and Bridger
  Mountains.

* WHEN...Through 1 PM Wednesday August 20.

* IMPACTS...Smoke from various wildfires across the Bighorn Basin,
  especially the Red Canyon Fire, will continue to spread across the
  region today and overnight tonight.

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/.

$$

WYZ003-008-201900-
Cody Foothills-Bighorn Mountains West-
Including the cities of Clark, Cody, and Meeteetse
1106 AM MDT Tue Aug 19 2025

...AIR QUALITY ALERT IN EFFECT UNTIL 1 PM MDT WEDNESDAY...

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...The eastern foothills of the Absaroka Mountains and the
  western portions of the Bighorn Mountains.

* WHEN...Through 1 PM Wednesday August 20.

* IMPACTS...Smoke from various wildfires across the Bighorn Basin,
  especially the Red Canyon Fire, as well as fires in Idaho and
  Nevada, will continue to spread across the region today and
  overnight tonight.

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/.

$$