Area Forecast Discussion
Issued by NWS Phoenix, AZ

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FXUS65 KPSR 262128
AFDPSR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PHOENIX AZ
230 PM MST TUE MAY 26 2015

.SYNOPSIS...DRY WEATHER ALONG WITH A WARMING TREND IS FORECAST FOR
THE REMAINDER OF THIS WEEK AND WEEKEND. CONSIDERABLE HIGH CLOUDS ARE
EXPECTED WEDNESDAY...WITH MOSTLY CLEAR SKIES THE REMAINDER OF THE
WEEK. AFTERNOON TEMPERATURES FOR THE LOWER DESERTS SHOULD WARM TO
BETWEEN 104 AND 107 DEGREES THIS WEEKEND.

&&

.DISCUSSION...

TONIGHT THROUGH FRIDAY...SEVERAL WEAK WEATHER DISTURBANCES WILL
CONTINUE TO MOVE THROUGH THE WESTERN STATES THIS WEEK. ONE
DISTURBANCE WILL MOVE THROUGH SOUTHERN AZ WEDNESDAY...THEN NORTHERN
AZ THURSDAY MORNING...FOLLOWED BY ANOTHER ACROSS THE STATE FRIDAY.
DESPITE THIS DISTURBANCES...ATMOSPHERIC HEIGHT AND THICKNESS VALUES
RETURN TO NORMAL TRANSLATING INTO NEAR NORMAL SURFACE TEMPERATURES.
CONSIDERABLE HIGH CLOUDS ARE EXPECTED TOMORROW WEDNESDAY...WITH
MOSTLY SUNNY SKIES THE REMAINDER OF THE WEEK.

SATURDAY THROUGH TUESDAY...DRY WESTERLY FLOW ALOFT WITH ABOVE NORMAL
TEMPERATURES...AND NEARLY CLOUDLESS SKIES ARE FORECAST. AFTERNOON
TEMPERATURES REGION WIDE WILL WARM TO ABOUT 5 DEGREES ABOVE
NORMAL...MEANING 104-107 DEGREES ON THE LOWER DESERTS. OTHERWISE NO
WEATHER PROBLEMS EXPECTED THIS PERIOD.

&&

.AVIATION... SOUTH-CENTRAL ARIZONA INCLUDING KPHX...KIWA...AND
KSDL...AND SOUTHEAST CALIFORNIA AND SOUTHWEST ARIZONA INCLUDING KIPL
AND KBLH...

LIGHT...AND DRY WESTERLY TO SOUTHWESTERLY FLOW ALOFT AND WEAK SFC
PRESSURE GRADIENTS WILL CONTINUE TO BRING DRY CONDITIONS AND MAINLY
LIGHT...DIURNALLY-DRIVEN WINDS TO ALL OF THE TERMINALS THROUGH THE
TAF PERIOD...AND BEYOND. A WEAK WEATHER DISTURBANCE PASSING ACROSS
THE REGION FROM WEST TO EAST WILL BRINGS PERIODS OF BKN-OVC MID-HIGH
CLOUDS LAYERS TO THE TERMINALS TONIGHT AND WEDNESDAY. NO AVIATION
IMPACTS EXPECTED AT ANY OF THE TERMINALS FOR AT LEAST THE NEXT 24
HOURS.

AVIATION DISCUSSION NOT UPDATED FOR AMENDED TAFS.

&&

.FIRE WEATHER... FRIDAY THROUGH TUESDAY... HIGH PRESSURE...THAT IS
EXPECTED TO BUILD OVER THE DESERT SOUTHWEST WILL BRING DRY
CONDITIONS AND SLIGHTLY ABOVE NORMAL TEMPERATURES TO THE REGION
THROUGH THE FORECAST PERIOD...WITH MOST LOWER DESERT LOCATIONS
SEEING HIGHS NEAR...OR SLIGHTLY ABOVE 100 DEGREES EACH DAY. MINIMUM
RH VALUES ARE EXPECTED TO RANGE FROM AROUND 7 PERCENT TO THE MID
TEENS EACH DAY. DESPITE THESE LOW RH VALUES...THE COMBINATION OF
LIGHT WINDS AND FAIR-GOOD OVERNIGHT RECOVERIES WILL KEEP FIRE DANGER
LEVELS AT RELATIVELY LOW LEVELS THROUGH THE FORECAST PERIOD.

&&

.PSR WATCHES/WARNINGS/ADVISORIES...
AZ...NONE.
CA...NONE.
&&

$$

VISIT US ON FACEBOOK...TWITTER...AND AT WEATHER.GOV/PHOENIX

DISCUSSION...VASQUEZ
AVIATION...PERCHA
FIRE WEATHER...PERCHA



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