000 
FXUS65 KPSR 191223 CCA
AFDPSR
AZZ020>028-CAZ030>033-191745-

SOUTHWEST ARIZONA/SOUTHEAST CALIFORNIA FORECAST DISCUSSION...CORECTED
NATIONAL WEATHER SERVICE PHOENIX AZ
330 AM MST SAT OCT 19 2002

.SYNOPSIS...
A VERY WEAK LOW PRESSURE SYSTEM WITH SOME HIGH CLOUDS WILL MOVE 
SOUTHEAST OVER SOUTHERN CALIFORNIA TODAY...THEN EAST ACROSS SOUTHERN 
ARIZONA SUNDAY. OTHERWISE...HIGHER PRESSURE ALOFT WILL WILL RESULT 
IN SOMEWHAT WARMER WEATHER TODAY. DRY WEATHER WITH NEAR NORMAL 
TEMPERATURES ARE EXPECTED TO CONTINUE THROUGH MOST OF THIS COMING 
WEEK.

.DISCUSSION...
SOMEWHAT WARMER WEATHER IS EXPECTED TODAY UNDER HIGHER PRESSURE 
ALOFT. A VERY WEAK LOW PRESSURE SYSTEM IS EXPECTED TO MOVE SOUTHEAST 
NEAR THE SOUTHERN CALIFORNIA COAST TODAY...THEN SWING EAST NEAR THE 
CALIFORNIA-MEXICAN BORDER TONIGHT AND EAST ACROSS SOUTHERN ARIZONA 
SUNDAY. THE ONLY NOTICEABLE EFFECT OF THIS SYSTEM WILL BE HIGH 
CLOUDS MOVING FROM SOUTHERN CALIFORNIA TODAY TO SOUTHWEST ARIZONA 
THIS AFTERNOON...THEN EAST ACROSS SOUTH-CENTRAL ARIZONA BY LATE 
TONIGHT INTO SUNDAY. CLEARING FROM THE WEST IS EXPECTED IN SOUTHEAST 
CALIFORNIA BY THIS EVENING...SOUTHWEST ARIZONA BY LATE TONIGHT...AND 
SOUTH-CENTRAL ARIZONA SUNDAY AFTERNOON. ENOUGH MID LEVEL MOISTURE IS 
EXPECTED TO DEVELOP AND THEN REMAIN FOR PARTLY CLOUDY SKIES TO 
CONTINUE OVER SOUTH-CENTRAL ARIZONA HIGHER TERRAIN THROUGH TUESDAY. 
ANOTHER WEAK PACIFIC LOW PRESSURE SYSTEM FROM OFF THE PACIFIC 
NORTHWEST COAST IS EXPECTED TO MOVE SOUTHEAST OVER CALIFORNIA AND 
DEVELOP PARTLY CLOUDY SKIES OVER ALL OF SOUTH-CENTRAL ARIZONA 
INCLUDING THE DESERT AREAS TUESDAY. YET ANOTHER WEAK PACIFIC LOW 
PRESSURE SYSTEM (THAT WILL SPLIT FROM THE SOUTHERN END OF A LOW 
PRESSURE SYSTEM CURRENTLY IN THE WESTERN GULF OF ALASKA) IS EXPECTED 
TO RESULT IN PARTLY CLOUDY AND SOMEWHAT COOLER WEATHER FOR
SOUTHEAST CALIFORNIA TO SOUTH-CENTRAL ARIZONA THURSDAY AND FRIDAY. 
MOST OF THE CLOUDINESS IS EXPECTED TO BE OVER THE SOUTH-CENTRAL 
ARIZONA HIGHER TERRAIN.

.PSR...NONE.