AIR QUALITY ALERT
Warning Issue Date: 1045 AM MST SAT DEC 26 2009
HIGH POLLUTION ADVISORY FOR MARICOPA COUNTY INCLUDING THE GREATER
PHOENIX AREA SATURDAY 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 SATURDAY 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.
$$
FREEZE WARNING
Warning Issue Date: 1225 PM MST SAT DEC 26 2009
...FREEZE WARNING IN EFFECT FROM 6 PM THIS EVENING TO 10 AM MST
SATURDAY...
THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ISSUED A FREEZE
WARNING...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO 10 AM MST
SATURDAY FOR CENTRAL MARICOPA COUNTY. THE WARNING COVERS THE PHOENIX
METROPOLITAN AREA.
* TEMPERATURE: OVERNIGHT LOW TEMPERATURES WILL RANGE FROM THE UPPER
20S TO LOW 30S AT MANY LOCATIONS. THE COLDEST TEMPERATURES ARE
EXPECTED IN MORE RURAL AND OUTLYING SITES OF THE GREATER PHOENIX
METROPOLITAN AREA.
* IMPACTS: SUB-FREEZING TEMPERATURES WILL MOST LIKELY OCCUR BETWEEN
MIDNIGHT AND 8 AM. AFTER A PERIOD OF SEVERAL HOURS...THESE TEMPERATURES
CAN DAMAGE EXPOSED OR UN-SHELTERED ORNAMENTAL PLANTS AND TENDER
VEGETATION.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A FREEZE WARNING MEANS FREEZING OR SUB-FREEZING TEMPERATURES ARE
IMMINENT OR HIGHLY LIKELY. THESE CONDITIONS WILL DESTROY OR DAMAGE
SENSITIVE CROPS AND OTHER VEGETATION. MEASURES SHOULD BE TAKEN TO
PROTECT PLANTS AND SHELTER ANIMALS THAT MUST BE LEFT OUTSIDE FOR ANY
LENGTH OF TIME.
$$
NATIONAL WEATHER SERVICE PHOENIX IS ON THE INTERNET AT
WEATHER.GOV/PHOENIX
MEYERS
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