...AIR STAGNATION ADVISORY NOW IN EFFECT UNTIL NOON MDT FRIDAY...

* WHAT...DETERIORATING AIR QUALITY DUE TO LIGHT WINDS AND
REDUCED VERTICAL MIXING.

* WHERE...ALL OF MONTANA WEST OF THE CONTINENTAL DIVIDE,
EXCLUDING THE BLACKFOOT VALLEY SOUTH THROUGH BUTTE.

* WHEN...UNTIL NOON MDT FRIDAY.

* IMPACTS...PERIODS OF AIR STAGNATION CAN LEAD TO THE BUILDUP OF
POLLUTANTS NEAR THE SURFACE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PEOPLE WITH RESPIRATORY ILLNESS SHOULD FOLLOW THEIR PHYSICIAN'S
ADVICE FOR DEALING WITH HIGH LEVELS OF AIR POLLUTION DURING
PERIODS OF STAGNANT AIR.

ACCORDING TO STATE AIR QUALITY AGENCIES, PROLONGED PERIODS OF
STAGNANT AIR CAN HOLD POLLUTANTS CLOSE TO THE GROUND WHERE PEOPLE
LIVE AND BREATHE. CHECK WITH YOUR LOCAL BURN AGENCY FOR ANY
CURRENT RESTRICTIONS IN YOUR AREA.

&&