Wind Advisory 29, NWS Phoenix, AZ

000 
WWUS75 KPSR 250520
NPWPSR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PHOENIX AZ
1020 PM MST MON DEC 24 2007

.STRONG NORTHERLY WINDS WILL DEVELOP ACROSS MOST OF SOUTHEAST
CALIFORNIA AND SOUTHWEST ARIZONA VERY EARLY TUESDAY AS A STRONG BUT
DRY COLD FRONT MOVES ACROSS THE AREA. WINDS WILL GRADUALLY INCREASE
AND BECOME STRONG AND GUSTY DURING THE MORNING HOURS CHRISTMAS DAY
WITH WIND GUSTS OF 40 TO 50 MPH. WINDS WILL DECREASE SUBSTANTIALLY
DURING THE EVENING. 

AZZ021-026-251730-
/O.EXB.KPSR.WI.Y.0029.071225T0900Z-071226T0000Z/
WEST CENTRAL DESERTS-SOUTHWEST DESERTS-
INCLUDING THE CITIES OF...BOUSE...QUARTZSITE...SALOME...
DATELAND...TACNA...WELLTON
1020 PM MST MON DEC 24 2007

...WIND ADVISORY IN EFFECT FROM 2 AM TO 5 PM MST TUESDAY FOR THE 
SOUTHWEST ARIZONA DESERTS...

THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 2 AM TO 5 PM MST TUESDAY. 

A LOW PRESSURE SYSTEM AND ASSOCIATED STRONG BUT DRY COLD FRONT
WILL ENTER SOUTHWEST ARIZONA VERY EARLY TUESDAY MORNING PUSHING SOUTH
AND EASTWARD. WINDS WILL GRADUALLY INCREASE FROM THE NORTH AND
INCREASE TO OVER 30 MPH DURING THE MORNING HOURS WITH GUSTS TO OVER
40 MPH. WINDS WILL THEN DECREASE SUBSTANTIALLY DURING THE EVENING
HOURS.

A WIND ADVISORY MEANS THAT SUSTAINED WIND SPEEDS OF BETWEEN
30 AND 40 MPH ARE EXPECTED...OR WIND GUSTS OF BETWEEN 40 AND
58 MPH. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY
FOR HIGH PROFILE VEHICLES. IN ADDITION...STRONG WINDS OVER DESERT
AREAS COULD RESULT IN BRIEFLY LOWERED VISIBILITIES IN BLOWING
DUST.

$$

AZZ020-025-CAZ030>033-251730-
/O.EXT.KPSR.WI.Y.0029.071225T0900Z-071226T0000Z/
LOWER COLORADO RIVER VALLEY AZ-YUMA/MARTINEZ LAKE AND VICINITY-
JOSHUA TREE NATIONAL PARK-LOWER COLORADO RIVER VALLEY CA-
RIVERSIDE COUNTY/EASTERN DESERTS-IMPERIAL COUNTY-
INCLUDING THE CITIES OF...EHRENBERG...PARKER...SAN LUIS...
SOMERTON...YUMA...FORTUNA FOOTHILLS...COTTONWOOD VISITOR CENTER...
LOST HORSE-KEYS VIEW JTNP...BLYTHE...CHIRIACO SUMMIT...
DESERT CENTER...EAGLE MTN...MIDLAND...BRAWLEY...CALEXICO...
EL CENTRO...GLAMIS...IMPERIAL...AND THE SALTON SEA
1020 PM MST MON DEC 24 2007 /920 PM PST MON DEC 24 2007/

...WIND ADVISORY NOW IN EFFECT FROM 2 AM MST /1 AM PST/ TO 5 PM
MST /4 PM PST/ TUESDAY FOR SOUTHEAST CALIFORNIA AND THE LOWER 
COLORADO RIVER VALLEY...

THE WIND ADVISORY IS NOW IN EFFECT FROM 2 AM MST /1 AM PST/ TO
5 PM MST /4 PM PST/ TUESDAY. 

A LOW PRESSURE SYSTEM AND ASSOCIATED STRONG BUT DRY COLD FRONT
WILL ENTER SOUTHEAST CALIFORNIA AND INTO THE LOWER COLORADO RIVER
VALLEY VERY EARLY TUESDAY MORNING MOVING SOUTH AND EASTWARD. WINDS
WILL GRADUALLY INCREASE FROM THE NORTH AND INCREASE TO OVER 30 MPH
DURING THE MORNING HOURS WITH GUSTS OF 40 TO 50 MPH. WINDS WILL THEN
DECREASE SUBSTANTIALLY DURING THE EVENING HOURS.

A WIND ADVISORY MEANS THAT SUSTAINED WIND SPEEDS OF BETWEEN
30 AND 40 MPH ARE EXPECTED...OR WIND GUSTS OF BETWEEN 40 AND
58 MPH. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY
FOR HIGH PROFILE VEHICLES. IN ADDITION...STRONG WINDS OVER DESERT
AREAS COULD RESULT IN BRIEFLY LOWERED VISIBILITIES IN BLOWING
DUST.

$$


AJ

000 
WWUS75 KPSR 251141
NPWPSR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PHOENIX AZ
441 AM MST TUE DEC 25 2007

.STRONG NORTHERLY WINDS WILL DEVELOP ACROSS MOST OF SOUTHEAST
CALIFORNIA AND SOUTHWEST ARIZONA EARLY TODAY AS A STRONG BUT DRY COLD
FRONT MOVES ACROSS THE AREA. WINDS WILL GRADUALLY INCREASE AND BECOME
STRONG AND GUSTY DURING THE MID TO LATE MORNING HOURS WITH WIND
GUSTS OF 40 TO 50 MPH. WINDS WILL DECREASE SUBSTANTIALLY DURING THE
EVENING.

AZZ020-021-025-026-CAZ030>033-260000-
/O.CON.KPSR.WI.Y.0029.000000T0000Z-071226T0000Z/
LOWER COLORADO RIVER VALLEY AZ-WEST CENTRAL DESERTS-
YUMA/MARTINEZ LAKE AND VICINITY-SOUTHWEST DESERTS-
JOSHUA TREE NATIONAL PARK-LOWER COLORADO RIVER VALLEY CA-
RIVERSIDE COUNTY/EASTERN DESERTS-IMPERIAL COUNTY-
INCLUDING THE CITIES OF...EHRENBERG...PARKER...BOUSE...
QUARTZSITE...SALOME...SAN LUIS...SOMERTON...YUMA...
FORTUNA FOOTHILLS...DATELAND...TACNA...WELLTON...
COTTONWOOD VISITOR CENTER...LOST HORSE-KEYS VIEW JTNP...BLYTHE...
CHIRIACO SUMMIT...DESERT CENTER...EAGLE MTN...MIDLAND...BRAWLEY...
CALEXICO...EL CENTRO...GLAMIS...IMPERIAL...AND THE SALTON SEA
441 AM MST TUE DEC 25 2007 /341 AM PST TUE DEC 25 2007/

...WIND ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST /4 PM PST/ THIS
AFTERNOON FOR SOUTHEAST CALIFORNIA...THE LOWER COLORADO RIVER
VALLEY...AND THE SOUTHWEST ARIZONA DESERTS...

A WIND ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST /4 PM PST/ THIS
AFTERNOON FOR STRONG AND GUSTY WINDS OVER JOSHUA TREE NATIONAL
PARK...THE SOUTHEAST CALIFORNIA DESERTS...THE LOWER COLORADO RIVER
VALLEY...AND PORTIONS OF THE SOUTHWEST ARIZONA DESERTS.

A LOW PRESSURE SYSTEM AND ITS ASSOCIATED COLD FRONT WILL MOVE ACROSS
SOUTHEAST CALIFORNIA AND INTO ARIZONA TODAY. WINDS FROM THE NORTH
WILL GRADUALLY INCREASE TO OVER 30 MPH DURING THE MORNING HOURS...
WITH GUSTS TO OVER 40 MPH POSSIBLE BEFORE MID DAY. WINDS WILL DECREASE
SUBSTANTIALLY DURING THE EVENING HOURS.

A WIND ADVISORY MEANS THAT SUSTAINED WIND SPEEDS BETWEEN 30 AND 40
MPH...OR WIND GUSTS BETWEEN 40 AND 58 MPH...ARE EXPECTED. WINDS THIS
STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE
VEHICLES. IN ADDITION...STRONG WINDS OVER DESERT AREAS COULD RESULT
IN BRIEFLY LOWERED VISIBILITIES IN BLOWING DUST. PERSONS TRAVELING
ALONG EAST WEST HIGHWAYS AND ROADWAYS...INCLUDING INTERSTATES 10 AND
8...SHOULD TAKE CAUTION AND BE PREPARED FOR STRONG AND GUSTY CROSS
WINDS FROM THE NORTH...WITH AREAS OF REDUCED VISIBILITY IN BLOWING
DUST AND SAND.

$$

WANEK

000 
WWUS75 KPSR 251839
NPWPSR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PHOENIX AZ
1139 AM MST TUE DEC 25 2007


AZZ022-023-027-028-260000-
/O.EXA.KPSR.WI.Y.0029.000000T0000Z-071226T0000Z/
NORTHWEST MARICOPA COUNTY-GREATER PHOENIX AREA-
SOUTHWEST MARICOPA COUNTY-
NORTHWEST AND NORTH CENTRAL PINAL COUNTY-
INCLUDING THE CITIES OF...LAKE PLEASANT...MORRISTOWN...
NEW RIVER...TONOPAH...BUCKEYE...WICKENBURG...CAREFREE...
CAVE CREEK...CHANDLER...FOUNTAIN HILLS...GILBERT...GLENDALE...
MESA...PEORIA...PHOENIX...SCOTTSDALE...SUN CITY...TEMPE...
GILA BEND...APACHE JUNCTION...CASA GRANDE...COOLIDGE...FLORENCE
1139 AM MST TUE DEC 25 2007

...WIND ADVISORY IN EFFECT UNTIL 5 PM MST THIS AFTERNOON FOR
MARICOPA COUNTY...AND NORTHWEST AND NORTH CENTRAL PINAL COUNTY...

THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. 

A LOW PRESSURE SYSTEM AND ITS ASSOCIATED COLD FRONT WILL MOVE
ACROSS SOUTHEAST CALIFORNIA AND ARIZONA TODAY. WINDS FROM THE NORTH
WILL GRADUALLY INCREASE TO OVER 30 MPH...WITH GUSTS TO OVER 40 MPH
POSSIBLE. WINDS WILL BEGIN TO DECREASE SUBSTANTIALLY DURING THE
LATE AFTERNOON HOURS.

A WIND ADVISORY MEANS THAT SUSTAINED WIND SPEEDS BETWEEN 30 AND
40 MPH...OR WIND GUSTS BETWEEN 40 AND 58 MPH...ARE EXPECTED.
WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR
HIGH PROFILE VEHICLES. IN ADDITION...STRONG WINDS OVER DESERT
AREAS COULD RESULT IN BRIEFLY LOWERED VISIBILITIES IN BLOWING
DUST. PERSONS TRAVELING ALONG EAST WEST HIGHWAYS AND ROADWAYS...
INCLUDING INTERSTATES 10 AND 8...SHOULD TAKE CAUTION AND BE PREPARED
FOR STRONG AND GUSTY CROSS WINDS.

$$

AZZ020-021-025-026-CAZ030>033-260000-
/O.CON.KPSR.WI.Y.0029.000000T0000Z-071226T0000Z/
LOWER COLORADO RIVER VALLEY AZ-WEST CENTRAL DESERTS-
YUMA/MARTINEZ LAKE AND VICINITY-SOUTHWEST DESERTS-
JOSHUA TREE NATIONAL PARK-LOWER COLORADO RIVER VALLEY CA-
RIVERSIDE COUNTY/EASTERN DESERTS-IMPERIAL COUNTY-
INCLUDING THE CITIES OF...EHRENBERG...PARKER...BOUSE...
QUARTZSITE...SALOME...SAN LUIS...SOMERTON...YUMA...
FORTUNA FOOTHILLS...DATELAND...TACNA...WELLTON...
COTTONWOOD VISITOR CENTER...LOST HORSE-KEYS VIEW JTNP...BLYTHE...
CHIRIACO SUMMIT...DESERT CENTER...EAGLE MTN...MIDLAND...BRAWLEY...
CALEXICO...EL CENTRO...GLAMIS...IMPERIAL...AND THE SALTON SEA
1139 AM MST TUE DEC 25 2007 /1039 AM PST TUE DEC 25 2007/

...WIND ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST /4 PM PST/ THIS
AFTERNOON...

A WIND ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST /4 PM PST/ THIS
AFTERNOON. 

A LOW PRESSURE SYSTEM AND ITS ASSOCIATED COLD FRONT WILL MOVE
ACROSS SOUTHEAST CALIFORNIA AND ARIZONA TODAY. WINDS FROM THE NORTH
WILL GRADUALLY INCREASE TO OVER 30 MPH...WITH GUSTS TO OVER 40 MPH
POSSIBLE. WINDS WILL DECREASE SUBSTANTIALLY DURING THE LATE AFTERNOON
HOURS.

A WIND ADVISORY MEANS THAT SUSTAINED WIND SPEEDS BETWEEN 30 AND
40 MPH...OR WIND GUSTS BETWEEN 40 AND 58 MPH...ARE EXPECTED.
WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR
HIGH PROFILE VEHICLES. IN ADDITION...STRONG WINDS OVER DESERT
AREAS COULD RESULT IN BRIEFLY LOWERED VISIBILITIES IN BLOWING
DUST. PERSONS TRAVELING ALONG EAST WEST HIGHWAYS AND ROADWAYS...
INCLUDING INTERSTATES 10 AND 8...SHOULD TAKE CAUTION AND BE
PREPARED FOR STRONG AND GUSTY CROSS WINDS.

$$

MEYERS

000 
WWUS75 KPSR 252131
NPWPSR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PHOENIX AZ
231 PM MST TUE DEC 25 2007

AZZ021>023-026>028-252245-
/O.CAN.KPSR.WI.Y.0029.000000T0000Z-071226T0000Z/
WEST CENTRAL DESERTS-NORTHWEST MARICOPA COUNTY-
GREATER PHOENIX AREA-SOUTHWEST DESERTS-SOUTHWEST MARICOPA COUNTY-
NORTHWEST AND NORTH CENTRAL PINAL COUNTY-
INCLUDING THE CITIES OF...BOUSE...QUARTZSITE...SALOME...
LAKE PLEASANT...MORRISTOWN...NEW RIVER...TONOPAH...BUCKEYE...
WICKENBURG...CAREFREE...CAVE CREEK...CHANDLER...FOUNTAIN HILLS...
GILBERT...GLENDALE...MESA...PEORIA...PHOENIX...SCOTTSDALE...
SUN CITY...TEMPE...DATELAND...TACNA...WELLTON...GILA BEND...
APACHE JUNCTION...CASA GRANDE...COOLIDGE...FLORENCE
231 PM MST TUE DEC 25 2007

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN PHOENIX HAS CANCELLED THE WIND
ADVISORY. 

LATE AFTERNOON WINDS HAVE DECREASED TO LESS THAN 30 MPH AT MOST
LOCATIONS. THEREFORE...THE WIND ADVISORY HAS BEEN CANCELLED.

$$

AZZ020-025-CAZ030>033-260000-
/O.CON.KPSR.WI.Y.0029.000000T0000Z-071226T0000Z/
LOWER COLORADO RIVER VALLEY AZ-YUMA/MARTINEZ LAKE AND VICINITY-
JOSHUA TREE NATIONAL PARK-LOWER COLORADO RIVER VALLEY CA-
RIVERSIDE COUNTY/EASTERN DESERTS-IMPERIAL COUNTY-
INCLUDING THE CITIES OF...EHRENBERG...PARKER...SAN LUIS...
SOMERTON...YUMA...FORTUNA FOOTHILLS...COTTONWOOD VISITOR CENTER...
LOST HORSE-KEYS VIEW JTNP...BLYTHE...CHIRIACO SUMMIT...
DESERT CENTER...EAGLE MTN...MIDLAND...BRAWLEY...CALEXICO...
EL CENTRO...GLAMIS...IMPERIAL...AND THE SALTON SEA
231 PM MST TUE DEC 25 2007 /131 PM PST TUE DEC 25 2007/

...WIND ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST /4 PM PST/ THIS
AFTERNOON...

A WIND ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST /4 PM PST/ THIS
AFTERNOON. 

WINDS FROM THE NORTH AND NORTHWEST WILL CONTINUE TO GUST TO NEAR 40
MPH THE REST OF THE AFTERNOON. THEREFORE...THE WIND ADVISORY WILL BE
ALLOWED TO CONTINUE. WINDS WILL DECREASE SUBSTANTIALLY EARLY THIS
EVENING. 

A WIND ADVISORY MEANS THAT SUSTAINED WIND SPEEDS BETWEEN 30 AND 40
MPH...OR WIND GUSTS BETWEEN 40 AND 58 MPH...ARE EXPECTED. WINDS THIS
STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE
VEHICLES. IN ADDITION...STRONG WINDS OVER DESERT AREAS COULD RESULT
IN BRIEFLY LOWERED VISIBILITIES IN BLOWING DUST. PERSONS TRAVELING
ALONG EAST WEST HIGHWAYS AND ROADWAYS...INCLUDING INTERSTATES 10 AND
8...SHOULD TAKE CAUTION AND BE PREPARED FOR STRONG AND GUSTY CROSS
WINDS.

$$

ESTLE

000 
WWUS75 KPSR 252220
NPWPSR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PHOENIX AZ
320 PM MST TUE DEC 25 2007

AZZ020-025-CAZ031>033-261100-
/O.NEW.KPSR.FZ.W.0010.071226T1000Z-071226T1600Z/
/O.CON.KPSR.WI.Y.0029.000000T0000Z-071226T0000Z/
LOWER COLORADO RIVER VALLEY AZ-YUMA/MARTINEZ LAKE AND VICINITY-
LOWER COLORADO RIVER VALLEY CA-RIVERSIDE COUNTY/EASTERN DESERTS-
IMPERIAL COUNTY-
INCLUDING THE CITIES OF...EHRENBERG...PARKER...SAN LUIS...
SOMERTON...YUMA...FORTUNA FOOTHILLS...BLYTHE...CHIRIACO SUMMIT...
DESERT CENTER...EAGLE MTN...MIDLAND...BRAWLEY...CALEXICO...
EL CENTRO...GLAMIS...IMPERIAL...AND THE SALTON SEA
320 PM MST TUE DEC 25 2007 /220 PM PST TUE DEC 25 2007/

...WIND ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST /4 PM PST/ THIS
AFTERNOON...
...FREEZE WARNING IN EFFECT FROM 3 AM MST /2 AM PST/ TO 9 AM MST
/8 AM PST/ WEDNESDAY...

A WIND ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST /4 PM PST/ THIS
AFTERNOON. THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ALSO ISSUED A
FREEZE WARNING...WHICH IS IN EFFECT FROM 3 AM MST /2 AM PST/ TO 9 AM
MST /8 AM PST/ WEDNESDAY.

WINDS FROM THE NORTH AND NORTHWEST WILL CONTINUE TO GUST TO NEAR
40 MPH THE REST OF THE AFTERNOON. THEREFORE...THE WIND ADVISORY
WILL BE ALLOWED TO CONTINUE. WINDS WILL DECREASE SUBSTANTIALLY
EARLY THIS EVENING...BECOMING LIGHT BEFORE MIDNIGHT.

A WIND ADVISORY MEANS THAT SUSTAINED WIND SPEEDS BETWEEN 30 AND 40
MPH...OR WIND GUSTS BETWEEN 40 AND 58 MPH...ARE EXPECTED. WINDS THIS
STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE
VEHICLES.

IN ADDITION...STRONG WINDS OVER DESERT AREAS COULD RESULT IN BRIEFLY
LOWERED VISIBILITIES IN BLOWING DUST. PERSONS TRAVELING ALONG EAST
WEST HIGHWAYS AND ROADWAYS... INCLUDING INTERSTATES 10 AND 8...SHOULD
TAKE CAUTION AND BE PREPARED FOR STRONG AND GUSTY CROSS WINDS.

THE COMBINATION OF LIGHT WINDS...CLEAR SKIES AND DRY COLD AIR WILL
ALLOW TEMPERATURES TO LOWER TO FREEZING OR SUB-FREEZING FOR SEVERAL
HOURS AT A NUMBER OF LOWER DESERT SITES ACROSS FAR SOUTHEAST
CALIFORNIA...AND SOUTHWEST ARIZONA WEDNESDAY MORNING.

FORECAST LOW TEMPERATURES FOR WEDNESDAY MORNING INCLUDE 37 AT PHOENIX
SKY HARBOR AIRPORT AND YUMA...32 AT DEER VALLEY AIRPORT...26 AT
COOLIDGE...29 AT GILA BEND...AND 31 DEGREES AT IMPERIAL.

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE HIGHLY LIKELY.
THESE CONDITIONS WILL DESTROY OR DAMAGE CROPS AND OTHER SENSITIVE
VEGETATION.

$$

AZZ021>023-026>028-261100-
/O.NEW.KPSR.FZ.W.0010.071226T1000Z-071226T1600Z/
WEST CENTRAL DESERTS-NORTHWEST MARICOPA COUNTY-
GREATER PHOENIX AREA-SOUTHWEST DESERTS-SOUTHWEST MARICOPA COUNTY-
NORTHWEST AND NORTH CENTRAL PINAL COUNTY-
INCLUDING THE CITIES OF...BOUSE...QUARTZSITE...SALOME...
LAKE PLEASANT...MORRISTOWN...NEW RIVER...TONOPAH...BUCKEYE...
WICKENBURG...CAREFREE...CAVE CREEK...CHANDLER...FOUNTAIN HILLS...
GILBERT...GLENDALE...MESA...PEORIA...PHOENIX...SCOTTSDALE...
SUN CITY...TEMPE...DATELAND...TACNA...WELLTON...GILA BEND...
APACHE JUNCTION...CASA GRANDE...COOLIDGE...FLORENCE
320 PM MST TUE DEC 25 2007

...FREEZE WARNING IN EFFECT FROM 3 AM TO 9 AM MST WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ISSUED A FREEZE
WARNING...WHICH IS IN EFFECT FROM 3 AM TO 9 AM MST WEDNESDAY. 

THE COMBINATION OF LIGHT WINDS...CLEAR SKIES AND DRY COLD AIR WILL
ALLOW TEMPERATURES TO LOWER TO FREEZING OR SUB-FREEZING FOR SEVERAL
HOURS AT A NUMBER OF LOWER DESERT SITES ACROSS SOUTHWEST AND SOUTH
CENTRAL ARIZONA WEDNESDAY MORNING.

FORECAST LOW TEMPERATURES FOR WEDNESDAY MORNING INCLUDE 37 AT PHOENIX
SKY HARBOR AIRPORT AND YUMA...32 AT DEER VALLEY AIRPORT...26 AT
COOLIDGE...29 AT GILA BEND...AND 31 DEGREES AT IMPERIAL.

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL DESTROY OR DAMAGE CROPS AND
OTHER SENSITIVE VEGETATION.

$$

CAZ030-260000-
/O.CON.KPSR.WI.Y.0029.000000T0000Z-071226T0000Z/
JOSHUA TREE NATIONAL PARK-
INCLUDING THE CITIES OF...COTTONWOOD VISITOR CENTER...
LOST HORSE-KEYS VIEW JTNP
220 PM PST TUE DEC 25 2007

...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...

A WIND ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON. 

WINDS FROM THE NORTH AND NORTHWEST WILL CONTINUE TO GUST TO NEAR
40 MPH THE REST OF THE AFTERNOON. THEREFORE...THE WIND ADVISORY
WILL BE ALLOWED TO CONTINUE. WINDS WILL DECREASE SUBSTANTIALLY
EARLY THIS EVENING.

A WIND ADVISORY MEANS THAT SUSTAINED WIND SPEEDS BETWEEN 30 AND
40 MPH...OR WIND GUSTS BETWEEN 40 AND 58 MPH...ARE EXPECTED.
WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR
HIGH PROFILE VEHICLES.

IN ADDITION...STRONG WINDS OVER DESERT AREAS COULD RESULT IN BRIEFLY
LOWERED VISIBILITIES IN BLOWING DUST. PERSONS TRAVELING ALONG EAST
WEST HIGHWAYS AND ROADWAYS...INCLUDING INTERSTATES 10 AND 8...SHOULD
TAKE CAUTION AND BE PREPARED FOR STRONG AND GUSTY CROSS WINDS.

$$

MEYERS

000 
WWUS75 KPSR 260012
NPWPSR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PHOENIX AZ
512 PM MST TUE DEC 25 2007

AZZ020-025-CAZ031>033-261215-
/O.EXP.KPSR.WI.Y.0029.000000T0000Z-071226T0000Z/
/O.CON.KPSR.FZ.W.0010.071226T1000Z-071226T1600Z/
LOWER COLORADO RIVER VALLEY AZ-YUMA/MARTINEZ LAKE AND VICINITY-
LOWER COLORADO RIVER VALLEY CA-RIVERSIDE COUNTY/EASTERN DESERTS-
IMPERIAL COUNTY-
INCLUDING THE CITIES OF...EHRENBERG...PARKER...SAN LUIS...
SOMERTON...YUMA...FORTUNA FOOTHILLS...BLYTHE...CHIRIACO SUMMIT...
DESERT CENTER...EAGLE MTN...MIDLAND...BRAWLEY...CALEXICO...
EL CENTRO...GLAMIS...IMPERIAL...AND THE SALTON SEA
512 PM MST TUE DEC 25 2007 /412 PM PST TUE DEC 25 2007/

...FREEZE WARNING REMAINS IN EFFECT FROM 3 AM MST /2 AM PST/ TO
9 AM MST /8 AM PST/ WEDNESDAY...
...WIND ADVISORY HAS EXPIRED...

A WIND ADVISORY ISSUED EARLIER IS NO LONGER IN EFFECT. NORTHWEST
WINDS WILL CONTINUE TO DIMINISH THIS EVENING...BECOMING 5 TO 15 MPH
BY MIDNIGHT.

HOWEVER...A FREEZE WARNING IS IN EFFECT TONIGHT FROM 3 AM MST /2 AM
PST/ TO 9 AM MST /8 AM PST/ WEDNESDAY.

THE COMBINATION OF LIGHT WINDS...CLEAR SKIES AND DRY COLD AIR WILL
ALLOW TEMPERATURES TO DROP TO FREEZING OR SUB-FREEZING VALUES FOR
SEVERAL HOURS AT A NUMBER OF DESERT LOCATIONS IN SOUTHEAST
CALIFORNIA...AND SOUTHWEST ARIZONA BY WEDNESDAY MORNING.

FORECAST LOW TEMPERATURES FOR WEDNESDAY MORNING INCLUDE 32 DEGREES 
IN YUMA...31 AT IMPERIAL...AND 33 IN BLYTHE.

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL DESTROY OR DAMAGE CROPS AND
OTHER SENSITIVE VEGETATION.

$$

CAZ030-260115-
/O.EXP.KPSR.WI.Y.0029.000000T0000Z-071226T0000Z/
JOSHUA TREE NATIONAL PARK-
INCLUDING THE CITIES OF...COTTONWOOD VISITOR CENTER...
LOST HORSE-KEYS VIEW JTNP
412 PM PST TUE DEC 25 2007

...WIND ADVISORY HAS EXPIRED...

THE WIND ADVISORY ISSUED EARLIER IS NO LONGER IN EFFECT. WINDS WILL
CONTINUE TO DIMINISH THIS EVENING...BECOMING 5 TO 15 MPH BY MIDNIGHT.

 

$$

AZZ021>023-026>028-261215-
/O.CON.KPSR.FZ.W.0010.071226T1000Z-071226T1600Z/
WEST CENTRAL DESERTS-NORTHWEST MARICOPA COUNTY-
GREATER PHOENIX AREA-SOUTHWEST DESERTS-SOUTHWEST MARICOPA COUNTY-
NORTHWEST AND NORTH CENTRAL PINAL COUNTY-
INCLUDING THE CITIES OF...BOUSE...QUARTZSITE...SALOME...
LAKE PLEASANT...MORRISTOWN...NEW RIVER...TONOPAH...BUCKEYE...
WICKENBURG...CAREFREE...CAVE CREEK...CHANDLER...FOUNTAIN HILLS...
GILBERT...GLENDALE...MESA...PEORIA...PHOENIX...SCOTTSDALE...
SUN CITY...TEMPE...DATELAND...TACNA...WELLTON...GILA BEND...
APACHE JUNCTION...CASA GRANDE...COOLIDGE...FLORENCE
512 PM MST TUE DEC 25 2007

...FREEZE WARNING REMAINS IN EFFECT FROM 3 AM TO 9 AM MST
WEDNESDAY...

THE COMBINATION OF LIGHT WINDS...CLEAR SKIES AND DRY COLD AIR WILL
ALLOW TEMPERATURES TO DROP TO FREEZING OR SUB-FREEZING VALUES FOR
SEVERAL HOURS AT A NUMBER OF DESERT LOCATIONS IN SOUTH CENTRAL
ARIZONA BY WEDNESDAY MORNING.

FORECAST LOW TEMPERATURES FOR WEDNESDAY MORNING INCLUDE 37 AT
PHOENIX SKY HARBOR AIRPORT...32 AT DEER VALLEY AIRPORT...26 AT
COOLIDGE...AND 29 AT GILA BEND.

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL DESTROY OR DAMAGE CROPS AND
OTHER SENSITIVE VEGETATION.

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PHOENIX AZ
1045 AM MST MON DEC 24 2007

SOUTH-CENTRAL AND SOUTHWEST ARIZONA...AND SOUTHEAST CALIFORNIA
FORECAST DISCUSSION

.SYNOPSIS...
HIGH PRESSURE ALOFT MOVING EAST OVER THE SOUTHWESTERN UNITED STATES
WILL RESULT IN RELATIVELY WARMER WEATHER TODAY WITH CLOSE TO AVERAGE
TEMPERATURES FOR LATE DECEMBER. A STRONG LOW PRESSURE SYSTEM FROM
THE NORTHWEST WILL MOVE SOUTHEAST ACROSS THE INTERMOUNTAIN WEST...
BRINGING BREEZY TO WINDY AND COOLER WEATHER CHRISTMAS DAY WITH THE
STRONGEST WINDS DOWN THE LOWER COLORADO RIVER VALLEY. A SERIES OF
LOW PRESSURE SYSTEMS FROM THE GULF OF ALASKA WILL BRING BREEZY AND
COOLER WEATHER WITH A SLIGHT CHANCE OF PRECIPITATION OVER THE HIGHER
TERRAIN NORTH AND EAST OF THE DESERTS AS WE HEAD TOWARD THE LATTER
PART OF THE WEEK.

&&

.SHORT TERM...
TODAY THROUGH WEDNESDAY...
THERE WERE SOME HIGH THIN CLOUDS MOVING SOUTHEAST ACROSS
SOUTH-CENTRAL ARIZONA INCLUDING THE GREATER PHOENIX AREA...BUT SKIES
WERE SUNNY ACROSS THE ENTIRE AREA THIS MORNING. TEMPERATURES WERE
GENERALLY 1 TO 4 DEGREES WARMER IN SOUTH-CENTRAL ARIZONA DESERT
AREAS INCLUDING THE GREATER PHOENIX AREA AND 4 TO 8 DEGREES
ELSEWHERE LATE THIS MORNING COMPARED WITH THE SAME TIME YESTERDAY.
DEW POINT TEMPERATURES WERE GENERALLY 4 TO 7 DEGREES HIGHER IN
SOUTH-CENTRAL ARIZONA INCLUDING THE GREATER PHOENIX AREA AND 5 TO 15
DEGREES ELSEWHERE LATE THIS MORNING COMPARED WITH THE SAME TIME
YESTERDAY...EXCEPT 15 TO 30 DEGREES HIGHER IN MUCH OF SOUTHEAST
CALIFORNIA. WIND WAS GENERALLY LIGHT OR NEAR CALM...EXCEPT THERE WAS
SOME WIND FROM THE NORTHEAST AND EAST LOCALLY 10 TO 20 MPH ACROSS
THE HIGHER TERRAIN NORTH AND EAST OF THE GREATER PHOENIX AREA THIS
MORNING.

HIGH PRESSURE ALOFT MOVING EAST ACROSS THE AREA WILL CONTINUE THE
WARMING TREND UNDER SUNNY SKIES TODAY.

THE RELATIVELY DRY SOUTHWEST END OF A LOW PRESSURE SYSTEM FROM THE
NORTHWEST WILL MOVE SOUTHEAST ACROSS OUR AREA BRINGING BREEZY TO
WINDY AND COLDER WEATHER FROM THE NORTH CHRISTMAS DAY ESPECIALLY IN
SOUTHEAST CALIFORNIA AND DOWN THE LOWER COLORADO RIVER VALLEY. WE
MAY NEED A RED FLAG WARNING AND WIND ADVISORY AT LEAST FOR THE LOWER
COLORADO RIVER VALLEYWEST ACROSS JOSHUA TREE NATIONAL PARK FOR
TUESDAY INTO TUESDAY EVENING.

DECREASING WIND AND THE DRY COLD AIRMASS BEHIND THIS SYSTEM WILL
LEAD TO COLDER WEATHER WITH BELOW FREEZING TEMPERATURES IN MANY
DESERT LOCATIONS AGAIN LATE TUESDAY NIGHT AND EARLY WEDNESDAY
MORNING.

ANOTHER COOL AND SUNNY DAY IS EXPECTED WEDNESDAY AS ANOTHER LOW
PRESSURE SYSTEM FROM THE GULF OF ALASKA APPROACHES OUR AREA.

&&

.LONG TERM...
WEDNESDAY NIGHT THROUGH SUNDAY...
ANOTHER WEATHER SYSTEM WILL BRUSH BY TO OUR NORTH AND EAST WEDNESDAY
NIGHT AND THURSDAY. ONCE AGAIN...THIS WILL BE A DRY SYSTEM FOR OUR
AREA...WITH THE MAIN IMPACTS BEING BREEZY TO LOCALLY WINDY
CONDITIONS AND COOL TEMPERATURES. AFTER THIS MID-WEEK SYSTEM MOVES
THROUGH...THE MED RANGE MODELS ARE INDICATING THE LONGWAVE PATTERN
TO SET UP A BAGGY TROUGH OVER MUCH OF THE CONUS. AS THIS HAPPENS
...WINDS ALOFT WILL SHIFT MORE WESTERLY...ALLOWING FOR INCREASING
MOISTURE FROM THE WEST TO STREAM ACROSS THE STATE. CURRENT GFS
RUN HAS 700MB AND ABOVE MOISTENING QUITE A BIT FRIDAY AND
SATURDAY...WHILE BRINGING A WEAK UPPER LEVEL (300MB) DISTURBANCE
THROUGH SE CA AND AZ. SHOULD THIS SCENARIO PAN OUT (FORECAST
CONFIDENCE THIS FAR OUT IS RATHER LOW)...THERE COULD BE A
SLIGHT--VERY SILGHT--CHANCE FOR PRECIP ACROSS THE DESERTS...WITH A
10-20% CHANCE OVER THE HIGHER TERRAIN OF SOUTHERN GILA COUNTY. AT
THE VERY LEAST...WE SHOULD SEE SOME CLOUDS FRIDAY INTO THE WEEKEND.

&&

.AVIATION...
DECEMBER 24 1120 UTC (DECEMBER 24 0420 MST)

GRADIENT FLOW WILL SUBSIDE THROUGH THE DAY AS A RIDGE MOVES RAPIDLY
ACROSS THE INTERMOUNTAIN WEST. THIS WILL RESULT IN LIGHT DIURNAL
WINDS WITH ONLY SOME CIRRUS SPILLING OVER THE RIDGE. QUICK ON ITS
HEELS WILL BE THE APPROACH OF A COLD FRONT...WHICH WILL MOVE THROUGH
BLH-IPL-YUM AROUND 12Z TUE. NORTHWESTERLY FLOW WILL INCREASE AT
THESE SITES AFTER 06Z...BECOMING DOWNRIGHT WINDY TUE AFT 12Z. NEAR
PHX-IWA...ONSET OF THE STRONGEST WINDS WILL LIKELY ARRIVE AROUND 18Z
TUE. LATEST MODEL GUIDANCE SUGGESTS VEERING FLOW BEHIND THE FRONT
MAY RESULT IN AN INCREASED THREAT FOR 10-18 KT NORTHERLY CROSSWINDS
FOR SEVERAL HOURS TUE AFTERNOON.

AVIATION DISCUSSION IS NOT UPDATED FOR AMENDED TAFS.

&&

.FIRE WEATHER...
DECEMBER 24 1300 GMT (DECEMBER 24 0600 MST)

STRONG COLD FRONT WILL RESULT IN DRY AND WINDY CONDITIONS DEVELOPING
TUE MORNING...MAINLY FROM THE COLORADO RIVER WESTWARD AND ACROSS THE
HIGHER TERRAIN OF JOSHUA TREE NATIONAL PARK. CONTEMPLATED ISSUING A
FIRE WEATHER WATCH...BUT CRITERIA MAY ONLY BE MET IN A FEW ISOLATED
SPOTS. NEVERTHELESS...EXPECT LOW RHS WITH GOOD TO VERY GOOD
VENTILATION ACROSS THE FORECAST AREA. NEXT COLD FRONT SET TO MOVE
THROUGH EARLY THU...THOUGH IT MAY HAVE LESS OF AN IMPACT WITH
REGARDS TO RH/WIND.

&&

.PSR WATCHES/WARNINGS/ADVISORIES...

AZ...NONE.

CA...NONE.

&&

NATIONAL WEATHER SERVICE PHOENIX IS ON THE INTERNET AT

WEATHER.GOV/PHOENIX

SHORT TERM...ELLIS
LONG TERM...WANEK
AVIATION...HIRSCH
FIRE WX...HIRSCH

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PHOENIX AZ
556 AM MST MON DEC 24 2007

AZZ020-025-CAZ030-031-251300-
LOWER COLORADO RIVER VALLEY AZ-YUMA/MARTINEZ LAKE AND VICINITY-
JOSHUA TREE NATIONAL PARK-LOWER COLORADO RIVER VALLEY CA-
556 AM MST MON DEC 24 2007 /456 AM PST MON DEC 24 2007/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EXTREME
SOUTHWEST ARIZONA...EXTREME WEST-CENTRAL ARIZONA...EXTREME
SOUTHEAST CALIFORNIA AND SOUTHEAST CALIFORNIA.

.DAY ONE...TODAY AND TONIGHT

A STRONG COLD FRONT WILL MOVE THROUGH SOUTHEAST CALIFORNIA AND
ARIZONA LATE TONIGHT THROUGH CHRISTMAS DAY. STRONG AND GUSTY
NORTHERLY WINDS ARE EXPECTED TO DEVELOP ON THE BACKSIDE OF THIS
FRONT...WITH THE STRONGEST WINDS AFTER MIDNIGHT OVER JOSHUA TREE
NATIONAL PARK...AND ALONG THE LOWER COLORADO RIVER VALLEY. SUSTAINED WINDS
SPEEDS WILL BE ON THE ORDER OF 20 TO 30 MPH...WITH POSSIBLE GUSTS
NEAR 40 MPH BY EARLY MORNING.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

STRONG AND GUSTY WINDS WILL CONTINUE THROUGH CHRISTMAS DAY...WITH
SUSTAINED WINDS OF 25 MPH AND GUSTS NEAR 40 MPH OVER JOSHUA TREE
NATIONAL PARK AND THE LOWER COLORADO RIVER VALLEY. PERSONS TRAVELING
ALONG EAST WEST RUNNING HIGHWAYS AND ROADWAYS...INCLUDING INTERSTATES
8 AND 10...SHOULD BE PREPARED FOR STRONG NORTHERLY CROSS WINDS...AND
POSSIBLE AREAS OF REDUCED VISIBILITY IN BLOWING DUST AND SAND.

SPOTTER ACTIVATION WILL NOT BE NEEDED.

WANEK