242
AEUS75 KBOU 111610
AQABOU
AIR QUALITY ALERT MESSAGE
COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT
RELAYED BY NATIONAL WEATHER SERVICE BOULDER CO
1010 AM MDT THU JUN 11 2026
COC005-013-123-035-001-059-031-112200-
ARAPAHOE-BOULDER-WELD-DOUGLAS-ADAMS-JEFFERSON-DENVER-
1010 AM MDT THU JUN 11 2026
...AIR QUALITY HEALTH ADVISORY FOR OZONE FROM 1000 AM THURSDAY
UNTIL 400 PM THURSDAY...
THE COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT HAS
ISSUED THE FOLLOWING...
WHAT...AIR QUALITY HEALTH ADVISORY FOR OZONE.
WHERE...BOULDER, JEFFERSON, DENVER, SOUTHERN PARTS OF WELD, AND
WESTERN PARTS OF DOUGLAS, ARAPAHOE, AND ADAMS COUNTIES. LOCATIONS
INCLUDE, BUT ARE NOT LIMITED TO BOULDER, GOLDEN, DENVER, CASTLE
ROCK, LITTLETON, AND BRIGHTON.
WHEN...1000 AM THURSDAY JUNE 11 TO 400 PM THURSDAY JUNE 11
IMPACTS...AN INTRUSION OF OZONE FROM HIGH UP IN THE ATMOSPHERE TO
THE SURFACE IS EXPECTED THROUGH AT LEAST THURSDAY AFTERNOON.
BECAUSE THIS IS AN OFF-CYCLE EVENT, THIS ADVISORY WILL BE REPLACED
BY A REGULATORY OZONE ACTION DAY ALERT AT 4PM, IF NECESSARY.
HEALTH INFORMATION...PUBLIC HEALTH RECOMMENDATIONS: INCREASING
LIKELIHOOD OF RESPIRATORY SYMPTOMS AND BREATHING DISCOMFORT IN
ACTIVE CHILDREN AND ADULTS AND PEOPLE WITH LUNG DISEASE, SUCH AS
ASTHMA. ACTIVE CHILDREN AND ADULTS, AND PEOPLE WITH LUNG DISEASE,
SUCH AS ASTHMA, SHOULD REDUCE PROLONGED OR HEAVY OUTDOOR EXERTION.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page