AFOS product AFDPSR
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Displaying AFOS PIL: AFDPSR
Product Timestamp: 2002-12-05 04:35 UTC

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FXUS65 KPSR 050435
AFDPSR
AZZ020>028-CAZ030>033-051045-

SOUTHWEST ARIZONA/SOUTHEAST CALIFORNIA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PHOENIX AZ
935 PM MST WED DEC 4 2002

.SYNOPSIS...
HIGH PRESSURE MOVING IN FROM THE WEST WILL BRING FAIR WEATHER AND 
WARMER DAYTIME TEMPERATURES TONIGHT THROUGH FRIDAY ACROSS SOUTHEAST 
CALIFORNIA AND SOUTHWEST ARIZONA. THEN...A LOW PRESSURE SYSTEM IS 
EXPECTED TO MOVE ACROSS NORTHERN ARIZONA SATURDAY...JUST BRUSHING 
SOUTH-CENTRAL ARIZONA WITH A SLIGHT CHANCE OF SHOWERS OVER HIGHER 
TERRAIN TO THE EAST OF PHOENIX. THIS SYSTEM WILL BE FOLLOWED BY A 
HIGH PRESSURE SYSTEM ON SUNDAY AND MONDAY...BRINGING FAIR WEATHER 
AND SLIGHT WARMING. ANOTHER FAST-MOVING LOW PRESSURE DISTURBANCE 
WILL MOVE ACROSS THE REGION TUESDAY AND TUESDAY NIGHT...WITH SOME 
COOLING REGION-WIDE AND POSSIBLE SHOWERS OVER THE HIGHER TERRAIN
OF SOUTH-CENTRAL ARIZONA TO THE EAST OF PHOENIX.

.DISCUSSION...
NO SIGNIFICANT WEATHER PROBLEMS ON TAP FOR TONIGHT...THO THERE MAY 
STILL BE SOME VISIBILITY RESTRICTIONS OVER THE SCNTRL DESERTS PER 
MIST OR HAZE TONIGHT INTO TOMORROW AS THE AMS REMAINS RATHER HUMID 
AND PARTICULATE-FILLED. UPPER RIDGE IS NOW BUILDING OVER THE SWRN 
STATES WITH THE AXIS OVER NRN CA...AND THE RIDGE WILL SLOWLY MOVE 
EAST OVER THE NEXT 24-36 HOURS...KEEPING THE AIRMASS DRY AND STABLE. 
SHOULD SEE SOME INCREASE IN HIGH CLOUDS FROM THE WEST LATER TONIGHT 
AND THRU TOMORROW AHEAD OF A PACIFIC TROF THAT WILL MOVE INLAND 
FRIDAY. STILL...THE HIGH CLOUDS SHOULD BE SOMEWHAT ON THE THIN SIDE 
AND MOSTLY SUNNY SKIES SHOULD BE THE RULE MOST PLACES THU. WINDS 
TONIGHT WILL REMAIN LIGHT PER THE WEAK SFC/MID LEVEL GRADIENTS... 
AND THE SKIES WILL BE CLEAR. WED WAS VERY HAZY OVER THE PHX 
AREA...WITH VSBYS DOWN TO 3 MILES MOST OF THE DAY...AND INTO 
TONIGHT. WITH THE VERY STABLE AMS AND NO WIND TO STIR THINGS UP OR 
TO SCOUR OUT THE RH AND LOW LEVEL PARTICULATES...EXPECT THE 
HAZY/FOGGY CONDITIONS TO PERSIST TONIGHT AND CONTINUE TOMORROW AND 
THIS IS ALREADY IN THE FORECAST. NO CHANGES NEEDED TO CURRENT 
PACKAGE.  11

.PSR...NONE.