000
FXUS65 KPSR 110036 AAA
AFDPSR
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PHOENIX AZ
535 PM MST WED MAR 10 2010
.UPDATE...UPDATED AVIATION DISCUSSION.
&&
.SYNOPSIS...
A LOW PRESSURE SYSTEM FROM THE NORTHWEST WILL BRING A CHANCE OF
RAIN AND MOUNTAIN SNOW TO SOUTH-CENTRAL ARIZONA TONIGHT...MAINLY
NORTH AND EAST OF PHOENIX. IT WILL ALSO BE BREEZY THROUGH THIS
EVENING...AND AGAIN MAINLY DOWN THE LOWER COLORADO RIVER VALLEY
THURSDAY. HIGH PRESSURE ALOFT FROM THE PACIFIC WILL BRING DRY AND
WARMER WEATHER THURSDAY THROUGH SATURDAY AND AGAIN MONDAY THROUGH
WEDNESDAY. ANOTHER LOW PRESSURE SYSTEM FROM THE NORTHWEST WILL
TEMPORARILY RESULT IN WINDY AND COOLER WEATHER ACROSS THE ENTIRE
AREA SUNDAY INTO SUNDAY NIGHT...WITH A SLIGHT CHANCE OF SHOWERS
NORTH AND EAST OF THE GREATER PHOENIX AREA.
&&
.DISCUSSION...
CLOUDINESS FROM THE NORTHWEST WAS MOVING INTO OUR AREA THIS
AFTERNOON WITH LIGHT SHOWERS IN SOUTHERN YAVAPAI COUNTY JUST TO THE
THE NORTH OF MARICOPA COUNTY. TEMPERATURES WERE GENERALLY 2 TO 6
DEGREES WARMER AT MID AFTERNOON TODAY COMPARED WITH THE SAME TIME
YESTERDAY. WIND WAS GENERALLY FROM THE SOUTHWEST AND WEST AT 10 TO
20 MPH IN SOUTH-CENTRAL AND SOUTHWEST ARIZONA INCLUDING THE GREATER
PHOENIX AREA AND YUMA...AND 15 TO 30 MPH IN SOUTHEAST CALIFORNIA
INCLUDING THE EL CENTRO/IMPERIAL AREA AT MID AFTERNOON.
A LOW PRESSURE SYSTEM WAS MOVING SOUTHEAST OVER WESTERN UTAH THIS
AFTERNOON AND WILL MOVE ACROSS NORTHEAST ARIZONA THIS EVENING TO NEW
MEXICO BY THURSDAY MORNING. THIS SYSTEM IS EXPECTED TO BRING ENOUGH
MOISTURE FOR A CHANCE OF A SMALL AMOUNT OF SHOWERS IN SOUTH-CENTRAL
ARIZONA MAINLY NORTH AND EAST OF THE GREATER PHOENIX AREA THROUGH
TONIGHT. THERE IS A SLIGHT CHANCE OF SPRINKLES OR A SMALL AMOUNT OF
RAIN IN THE GREATER PHOENIX AREA THROUGH TONIGHT MAINLY IN THE NORTH
AND EAST VALLEY. MEANWHILE...MOSTLY CLEAR SKIES ARE EXPECTED IN
SOUTHEAST CALIFORNIA AND SOUTHWEST ARIZONA INCLUDING THE YUMA AND EL
CENTRO/IMPERIAL AREAS TONIGHT.
THE LOW PRESSURE SYSTEM WILL ALSO BRING BREEZY WEATHER FROM THE WEST
THROUGH THIS EVENING WITH THE STRONGEST WIND GUSTS TO AROUND 30 MPH
IN SOUTHEAST CALIFORNIA. BREEZY WEATHER FROM THE NORTH IS EXPECTED
IN PORTIONS OF SOUTHEAST CALIFORNIA AND SOUTHWEST ARIZONA MAINLY
DOWN THE LOWER COLORADO RIVER VALLEY THURSDAY.
HIGH PRESSURE ALOFT FROM THE PACIFIC WILL RESULT IN A WARMING TREND
THURSDAY...FRIDAY...AND SATURDAY WITH TEMPERATURES RISING INTO THE
LOWER TO MID 70S IN THE DESERT AREAS INCLUDING PHOENIX...YUMA...AND
THE EL CENTRO/IMPERIAL AREA SATURDAY WHICH IS JUST SLIGHTLY BELOW
AVERAGE FOR MID MARCH. SUNNY SKIES ARE EXPECTED THURSDAY AND FRIDAY
WITH MOSTLY CLEAR SKIES THURSDAY NIGHT. HIGH CLOUDINESS FROM THE
WEST IS EXPECTED FRIDAY NIGHT AND SATURDAY AHEAD OF THE NEXT LOW
PRESSURE SYSTEM FROM THE NORTHWEST...BUT PLENTY OF SUNSHINE IS
EXPECTED TO BE MIXED WITH THE HIGH CLOUDINESS SATURDAY.
THE NEXT LOW PRESSURE SYSTEM FROM THE NORTHWEST IS EXPECTED TO MOVE
SOUTH OVER EASTERN ARIZONA SUNDAY. THIS LOW PRESSURE SYSTEM WILL
TEMPORARILY RESULT IN WINDY AND COOLER WEATHER SUNDAY INTO SUNDAY
NIGHT. THERE IS ALSO A SLIGHT CHANCE OF SHOWERS NORTH AND EAST OF
THE GREATER PHOENIX AREA SUNDAY AND SUNDAY NIGHT.
STRONG HIGH PRESSURE ALOFT FROM THE PACIFIC WILL BRING MOSTLY CLEAR
NIGHTS AND SUNNY DAYS WITH A SIGNIFICANT WARMING TREND MONDAY THROUGH
WEDNESDAY NEXT WEEK. HIGHS ARE EXPECTED TO RISE INTO THE LOWER 80S
IN THE DESERT AREAS INCLUDING THE GREATER PHOENIX AREA...YUMA...AND
THE EL CENTRO/IMPERIAL AREA WEDNESDAY WHICH IS SOMEWHAT ABOVE AVERAGE
FOR MID MARCH. THE FIRST 80 DEGREE TEMPERATURE OF THE YEAR IN
PHOENIX IS EXPECTED BY WEDNESDAY NEXT WEEK.
&&
.AVIATION...
SOUTHEAST CALIFORNIA...SOUTHWEST AND SOUTH-CENTRAL
ARIZONA...INCLUDING KPHX...KIWA...KIPL...KBLH AND SURROUNDING
AIRFIELDS.
SOUTHCENTRAL ARIZONA INCLUDING KPHX AND KIWA...
WEATHER SYSTEM PASSING THROUGH SOUTH-CENTRAL ARIZONA TONIGHT WILL
LEAD TO SCATTERED SHOWERS...MAINLY OVER HIGHER TERRAIN NORTH AND
EAST OF PHOENIX. EXPECT A FEW SPRINKLES/LIGHT SHOWERS OVER THE LOWER
CENTRAL DESERT THRU ABOUT 06Z...ALONG WITH AREAS OF CIGS BETWEEN
7-10K FEET. AFTER 12Z SKIES SHOULD BE CLEARING...WITH JUST SCT MID
CLOUDS LINGERING OVER LOWER DESERT. GUSTY WEST WIND EXPECTED THIS
EVENING...WITH PEAKS TO 25 MPH OR SO...DECREASING AFTER 03Z. LIGHTER
NORTH TO NORTHWEST WIND EXPECTED THU AFTERNOON BEHIND THE PASSING
SYSTEM.
SOUTHEAST CALIFORNIA AND SOUTHWEST AZ INCLUDING KIPL AND KBLH...
PASSING WEATHER SYSTEM WILL LEAD TO GUSTY WEST WINDS THIS EVENING
ESPECIALLY OVER THE IMPERIAL VALLEY...WHERE PEAK GUSTS TO NEAR 30
MPH ARE EXPECTED THRU 04Z OR SO. WINDS TO DECREASE OVERNIGHT...AND
BECOMING NORTHERLY. EXPECT SOME GUSTS TO OVER 20 MPH FROM THE NORTH
THURSDAY...ESPECIALLY DOWN THE LOWER CO RIVER VALLEY. DO NOT EXPECT
CLOUDS TO BE AN AVIATION ISSUE...WITH MOSTLY CLEAR SKIES LIKELY BY
THURSDAY MORNING.
AVIATION DISCUSSION NOT UPDATED FOR AMENDED TAFS.
&&
.FIRE WEATHER...
SATURDAY THROUGH MONDAY...
HIGH PRESSURE WILL BEGIN TO BREAK DOWN SATURDAY...AHEAD OF A STRONG
LOW PRESSURE SYSTEM FORECAST TO MOVE THROUGH ARIZONA SUNDAY INTO
MONDAY...WITH BREEZY TO WINDY CONDITIONS AND A RETURN THREAT OF
VALLEY RAIN AND MOUNTAIN SNOW.
&&
.PSR WATCHES/WARNINGS/ADVISORIES...
AZ...NONE.
CA...NONE.
&&
$$
NATIONAL WEATHER SERVICE PHOENIX IS ON THE INTERNET AT
WEATHER.GOV/PHOENIX
DISCUSSION...ELLIS
AVIATION...CB
FIRE WEATHER...WANEK
