AIR QUALITY ALERT
Warning Issue Date: 531 AM MST SAT DEC 26 2009
HIGH POLLUTION ADVISORY FOR MARICOPA COUNTY INCLUDING THE GREATER
PHOENIX AREA TODAY AND SUNDAY...
THE ARIZONA DEPARTMENT OF ENVIRONMENTAL QUALITY IN PHOENIX HAS ISSUED
AN AIRBORNE FINE PARTICLE HIGH POLLUTION ADVISORY FOR THE GREATER
PHOENIX AREA FOR TODAY AND SUNDAY.
THIS MEANS THAT ONGOING STAGNANT WEATHER CONDITIONS COMBINED WITH
EXISTING AIRBORNE FINE PARTICLE LEVELS MAY RESULT IN LOCAL FINE
PARTICLE CONCENTRATIONS THAT POSE A HEALTH RISK. ADVERSE HEALTH
EFFECTS INCREASE AS AIR QUALITY DETERIORATES.
FINE PARTICULATE MATTER - ALSO KNOWN AS PM-2.5 - IS AN AIR
CONTAMINANT THAT CAN AGGRAVATE HEART AND LUNG DISEASE CONDITIONS...
ESPECIALLY IN OLDER ADULTS...CHILDREN...AND THOSE WITH ASTHMA. A
DECREASE IN PHYSICAL ACTIVITY IS RECOMMENDED.
CONSOLIDATE YOUR TRAVEL...REDUCE OR ELIMINATE FIREPLACE USE...REFRAIN
FROM OUTDOOR BURNING...AND AVOID USING GAS-POWERED LAWN EQUIPMENT.
FOR DETAILS ON THIS HIGH POLLUTION ADVISORY FOR MARICOPA COUNTY...
VISIT THE ADEQ INTERNET SITE AT WWW.AZDEQ.GOV OR CALL 602-771-2367
FOR RECORDED FORECAST INFORMATION.
$$
FREEZE WARNING
Warning Issue Date: 1005 PM MST FRI DEC 25 2009
...FREEZE WARNING NOW IN EFFECT FROM 3 AM TO 10 AM MST SATURDAY...
THE FREEZE WARNING IS NOW IN EFFECT FROM 3 AM TO 10 AM MST SATURDAY.
* TEMPERATURE: OVERNIGHT LOW TEMPERATURES WILL RANGE FROM THE UPPER
20S TO LOW 30S AT MANY LOCATIONS. THE COLDEST TEMPERATURES ARE
EXPECTED IN MORE RURAL AND OUTLYING SITES OF THE GREATER PHOENIX
METROPOLITAN AREA. MORE URBAN LOCATIONS WILL DROP INTO THE MID
30S...INCLUDING SKY HARBOR AIRPORT WITH A FORECAST LOW OF 35.
* IMPACTS: SUB-FREEZING TEMPERATURES WILL MOST LIKELY OCCUR BETWEEN 3
AM AND 8 AM. AFTER A PERIOD OF SEVERAL HOURS...THESE TEMPERATURES CAN
DAMAGE EXPOSED OR UN-SHELTERED ORNAMENTAL PLANTS AND TENDER
VEGETATION.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MEASURES SHOULD BE TAKEN TO PROTECT PLANTS AND SHELTER ANIMALS THAT
MUST BE LEFT OUTSIDE FOR ANY LENGTH OF TIME.
$$
NATIONAL WEATHER SERVICE PHOENIX IS ON THE INTERNET AT
WEATHER.GOV/PHOENIX
AJ
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