353  
AEUS75 KRIW 301850  
AQARIW  
 
AIR QUALITY ALERT MESSAGE  
RELAYED BY NATIONAL WEATHER SERVICE RIVERTON WY  
1250 PM MDT THU SEP 30 2021  
 
WYZ001-011900-  
YELLOWSTONE NATIONAL PARK-  
INCLUDING THE CITIES OF LAKE, MAMMOTH, AND OLD FAITHFUL  
1250 PM MDT THU SEP 30 2021  
   
..AIR QUALITY ALERT IN EFFECT UNTIL 1 PM MDT FRIDAY
 
 
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...YELLOWSTONE NATIONAL PARK.  
 
* WHEN...UNTIL 1 PM FRIDAY.  
 
* IMPACTS...SMOKE FROM THE SHEDHORN WILDFIRE IN SOUTHWEST MONTANA MAY  
FILTER INTO YELLOWSTONE NATIONAL PARK TODAY AND TOMORROW. THE  
SMOKE MAY LIMIT VISIBILITY AT TIMES AND CREATE POOR AIR QUALITY.  
 
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/.  
 

 
 
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