Freeze Warning 7, NWS Phoenix, AZ

834 
WWUS75 KPSR 012244
NPWPSR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PHOENIX AZ
344 PM MST TUE FEB 1 2011

.A COLD CANADIAN AIR-MASS IS FORECAST TO MOVE SOUTH INTO THE
REGION...WITH THE POTENTIAL FOR WIDESPREAD FREEZING LOW TEMPERATURES
ON THE SOUTHWEST AND SOUTH CENTRAL ARIZONA DESERTS
WEDNESDAY...THURSDAY...AND FRIDAY MORNINGS. IN ADDITION STRONG GUSTY
WINDS ARE LIKELY TONIGHT THROUGH WEDNESDAY OVER THE DESERTS OF
SOUTHWEST ARIZONA AND SOUTHEAST CALIFORNIA.

AZZ021-026-021045-
/O.CON.KPSR.FZ.W.0006.110202T0800Z-110202T1600Z/
/O.CON.KPSR.FZ.W.0007.110203T0600Z-110203T1700Z/
/O.CON.KPSR.WI.Y.0002.110202T0600Z-110203T0000Z/
/O.CON.KPSR.FZ.A.0003.110204T0300Z-110204T1700Z/
WEST CENTRAL DESERTS-SOUTHWEST DESERTS-
INCLUDING THE CITIES OF...QUARTZSITE...SALOME...TACNA...WELLTON
344 PM MST TUE FEB 1 2011

...WIND ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
5 PM MST WEDNESDAY...
...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 9 AM MST
WEDNESDAY...
...FREEZE WARNING REMAINS IN EFFECT FROM 11 PM WEDNESDAY TO 10 AM
MST THURSDAY...
...FREEZE WATCH REMAINS IN EFFECT FROM THURSDAY EVENING THROUGH
FRIDAY MORNING...

A FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 9 AM MST
WEDNESDAY. A FREEZE WARNING REMAINS IN EFFECT FROM 11 PM
WEDNESDAY TO 10 AM MST THURSDAY. A WIND ADVISORY REMAINS IN
EFFECT FROM 11 PM THIS EVENING TO 5 PM MST WEDNESDAY. A FREEZE
WATCH REMAINS IN EFFECT FROM THURSDAY EVENING THROUGH FRIDAY
MORNING. 

* AFFECTED AREA: THE SOUTHWESTERN ARIZONA DESERTS INCLUDING THE 
  COMMUNITIES OF BOUSE...VICKSBURG...TACNA AND WELLTON. 

* TEMPERATURE: THERE IS POTENTIAL FOR LOW TEMPERATURES TO FALL 
  INTO THE 20S AND LOWER 30S ON THE DESERTS. 

* IMPACTS: OVERNIGHT BELOW FREEZING TEMPERATURES COULD RESULT 
  IN RUPTURED PLASTIC IRRIGATION PIPES...OR DESTROY FROST 
  SENSITIVE PLANTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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 TO WELL UNDER
A MILE AT TIMES IN BLOWING DUST OR BLOWING SAND. USE EXTRA
CAUTION.

A FREEZE WATCH MEANS SUB-FREEZING TEMPERATURES ARE POSSIBLE.
THESE CONDITIONS COULD DESTROY OR DAMAGE CROPS AND OTHER
SENSITIVE VEGETATION.

&&

$$

AZZ022-023-027-028-021045-
/O.CON.KPSR.FZ.W.0006.110202T0800Z-110202T1600Z/
/O.CON.KPSR.FZ.W.0007.110203T0600Z-110203T1700Z/
/O.CON.KPSR.FZ.A.0003.110204T0300Z-110204T1700Z/
NORTHWEST MARICOPA COUNTY-GREATER PHOENIX AREA-
SOUTHWEST MARICOPA COUNTY-
NORTHWEST AND NORTH CENTRAL PINAL COUNTY-
INCLUDING THE CITIES OF...BUCKEYE...NEW RIVER...WICKENBURG...
MESA...PHOENIX...GILA BEND...APACHE JUNCTION...CASA GRANDE...
FLORENCE
344 PM MST TUE FEB 1 2011

...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 9 AM MST
WEDNESDAY...
...FREEZE WARNING REMAINS IN EFFECT FROM 11 PM WEDNESDAY TO 10 AM
MST THURSDAY...
...FREEZE WATCH REMAINS IN EFFECT FROM THURSDAY EVENING THROUGH
FRIDAY MORNING...

A FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 9 AM MST
WEDNESDAY. A FREEZE WARNING REMAINS IN EFFECT FROM 11 PM
WEDNESDAY TO 10 AM MST THURSDAY. A FREEZE WATCH REMAINS IN EFFECT
FROM THURSDAY EVENING THROUGH FRIDAY MORNING. 

* AFFECTED AREA: MOST OF THE SOUTHWEST AND SOUTH CENTRAL ARIZONA 
  DESERTS... INCLUDING THE GREATER PHOENIX AREA...GILA BEND... 
  BUCKEYE... COOLIDGE...AND CASA GRANDE. 

* TEMPERATURE: THERE IS POTENTIAL FOR LOW TEMPERATURES FALL 
  INTO THE 20S AND LOWER 30S ON THE DESERTS. 

* IMPACTS: OVERNIGHT BELOW FREEZING TEMPERATURES COULD RESULT 
  IN RUPTURED PLASTIC IRRIGATION PIPES...OR DESTROY FROST 
  SENSITIVE PLANTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

A FREEZE WATCH MEANS SUB-FREEZING TEMPERATURES ARE POSSIBLE.
THESE CONDITIONS COULD DESTROY OR DAMAGE CROPS AND OTHER
SENSITIVE VEGETATION.

&&

$$

AZZ020-025-CAZ031>033-021045-
/O.CON.KPSR.WI.Y.0002.110202T0600Z-110203T0000Z/
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...
FORTUNA FOOTHILLS...YUMA...BLYTHE...CHIRIACO SUMMIT...
DESERT CENTER...BRAWLEY...CALEXICO...EL CENTRO
344 PM MST TUE FEB 1 2011 /244 PM PST TUE FEB 1 2011/

...WIND ADVISORY REMAINS IN EFFECT FROM 11 PM MST /10 PM PST/
THIS EVENING TO 5 PM MST /4 PM PST/ WEDNESDAY...

A WIND ADVISORY REMAINS IN EFFECT FROM 11 PM MST /10 PM PST/ THIS
EVENING TO 5 PM MST /4 PM PST/ WEDNESDAY. 

* AFFECTED AREA: THE LOWER DESERTS OF SOUTHWEST ARIZONA AND 
  SOUTHEAST CALIFORNIA...INCLUDING THE LOWER COLORADO RIVER 
  VALLEY. 

* TIMING: STRONG GUSTY NORTH WINDS WILL DEVELOP THIS AFTERNOON
  AND EVENING AND PEAK IN STRENGTH AFTER MIDNIGHT. THE STRONG 
  WINDS WILL PERSIST THROUGH THE AFTERNOON HOURS ON WEDNESDAY. 

* WINDS: STRONG GUSTY NORTH WINDS FROM 20 TO OVER 40 MPH ARE 
  EXPECTED. PEAK GUSTS LATER TONIGHT THROUGH WEDNESDAY 
  AFTERNOON COULD REACH TO AROUND 50 MPH.

* IMPACTS: STRONG WINDS COULD GENERATE AREAS OF BLOWING DUST AND SAND
  WHICH WOULD SHARPLY LOWER VISIBILITY. THIS WOULD BE A HAZARD TO
  MOTORISTS. IN ADDITION...GUSTY SHIFTING CROSSWINDS COULD BE
  DANGEROUS TO DRIVERS OF HIGH PROFILE VEHICLES ON EAST-WEST
  ORIENTED ROADS AND HIGHWAYS SUCH AS INTERSTATE 10 NEAR BLYTHE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 TO WELL UNDER
A MILE AT TIMES IN BLOWING DUST OR BLOWING SAND. USE EXTRA
CAUTION.

&&

$$

NATIONAL WEATHER SERVICE PHOENIX IS ON THE INTERNET AT

WEATHER.GOV/PHOENIX

302 
WWUS75 KPSR 020215
NPWPSR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PHOENIX AZ
715 PM MST TUE FEB 1 2011

.A COLD CANADIAN AIR-MASS IS FORECAST TO MOVE SOUTH INTO THE
REGION...WITH THE POTENTIAL FOR WIDESPREAD FREEZING LOW
TEMPERATURES ON THE SOUTHWEST AND SOUTH CENTRAL ARIZONA DESERTS
WEDNESDAY...THURSDAY...AND FRIDAY MORNINGS. IN ADDITION STRONG
GUSTY WINDS ARE SPREADING INTO THE LOWER WESTERN DESERTS TONIGHT AND
WILL CONTINUE THROUGH WEDNESDAY.

AZZ021-026-021415-
/O.EXT.KPSR.WI.Y.0002.110202T0215Z-110203T0000Z/
/O.CON.KPSR.FZ.W.0006.110202T0800Z-110202T1600Z/
/O.CON.KPSR.FZ.W.0007.110203T0600Z-110203T1700Z/
/O.CON.KPSR.FZ.A.0003.110204T0300Z-110204T1700Z/
WEST CENTRAL DESERTS-SOUTHWEST DESERTS-
INCLUDING THE CITIES OF...QUARTZSITE...SALOME...TACNA...WELLTON
715 PM MST TUE FEB 1 2011

...WIND ADVISORY NOW IN EFFECT UNTIL 5 PM MST WEDNESDAY...
...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 9 AM MST
WEDNESDAY...
...FREEZE WARNING REMAINS IN EFFECT FROM 11 PM WEDNESDAY TO 10 AM
MST THURSDAY...
...FREEZE WATCH REMAINS IN EFFECT FROM THURSDAY EVENING THROUGH
FRIDAY MORNING...

THE WIND ADVISORY IS NOW IN EFFECT UNTIL 5 PM MST WEDNESDAY. A
FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 9 AM MST WEDNESDAY.
A FREEZE WARNING REMAINS IN EFFECT FROM 11 PM WEDNESDAY TO 10 AM
MST THURSDAY. A FREEZE WATCH REMAINS IN EFFECT FROM THURSDAY
EVENING THROUGH FRIDAY MORNING. 

* AFFECTED AREA: THE SOUTHWESTERN ARIZONA DESERTS INCLUDING THE
  COMMUNITIES OF PARKER...TACNA...QUARTZSITE AND WENDEN.

* TEMPERATURE: THERE IS POTENTIAL FOR LOW TEMPERATURES TO FALL 
  INTO THE 20S AND LOWER 30S ON THE DESERTS.

* IMPACTS: OVERNIGHT BELOW FREEZING TEMPERATURES COULD RESULT 
  IN RUPTURED PLASTIC IRRIGATION PIPES...OR DESTROY FROST 
  SENSITIVE PLANTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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 TO WELL UNDER
A MILE AT TIMES IN BLOWING DUST OR BLOWING SAND. USE EXTRA
CAUTION.

A FREEZE WATCH MEANS SUB-FREEZING TEMPERATURES ARE POSSIBLE.
THESE CONDITIONS COULD DESTROY OR DAMAGE CROPS AND OTHER
SENSITIVE VEGETATION.

&&

$$

AZZ022-023-027-028-021415-
/O.CON.KPSR.FZ.W.0006.110202T0800Z-110202T1600Z/
/O.CON.KPSR.FZ.W.0007.110203T0600Z-110203T1700Z/
/O.CON.KPSR.FZ.A.0003.110204T0300Z-110204T1700Z/
NORTHWEST MARICOPA COUNTY-GREATER PHOENIX AREA-
SOUTHWEST MARICOPA COUNTY-
NORTHWEST AND NORTH CENTRAL PINAL COUNTY-
INCLUDING THE CITIES OF...BUCKEYE...NEW RIVER...WICKENBURG...
MESA...PHOENIX...GILA BEND...APACHE JUNCTION...CASA GRANDE...
FLORENCE
715 PM MST TUE FEB 1 2011

...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 9 AM MST
WEDNESDAY...
...FREEZE WARNING REMAINS IN EFFECT FROM 11 PM WEDNESDAY TO 10 AM
MST THURSDAY...
...FREEZE WATCH REMAINS IN EFFECT FROM THURSDAY EVENING THROUGH
FRIDAY MORNING...

A FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 9 AM MST
WEDNESDAY. A FREEZE WARNING REMAINS IN EFFECT FROM 11 PM
WEDNESDAY TO 10 AM MST THURSDAY. A FREEZE WATCH REMAINS IN EFFECT
FROM THURSDAY EVENING THROUGH FRIDAY MORNING. 

* AFFECTED AREA: MOST OF THE SOUTHWEST AND SOUTH CENTRAL ARIZONA 
  DESERTS... INCLUDING THE GREATER PHOENIX AREA...GILA BEND... 
  BUCKEYE... COOLIDGE...AND CASA GRANDE. 

* TEMPERATURE: THERE IS POTENTIAL FOR LOW TEMPERATURES FALL 
  INTO THE 20S AND LOWER 30S ON THE DESERTS.

* IMPACTS: OVERNIGHT BELOW FREEZING TEMPERATURES COULD RESULT 
  IN RUPTURED PLASTIC IRRIGATION PIPES...OR DESTROY FROST 
  SENSITIVE PLANTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

A FREEZE WATCH MEANS SUB-FREEZING TEMPERATURES ARE POSSIBLE.
THESE CONDITIONS COULD DESTROY OR DAMAGE CROPS AND OTHER
SENSITIVE VEGETATION.

&&

$$

AZZ020-025-CAZ031>033-021415-
/O.EXT.KPSR.WI.Y.0002.110202T0215Z-110203T0000Z/
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...
FORTUNA FOOTHILLS...YUMA...BLYTHE...CHIRIACO SUMMIT...
DESERT CENTER...BRAWLEY...CALEXICO...EL CENTRO
715 PM MST TUE FEB 1 2011 /615 PM PST TUE FEB 1 2011/

...WIND ADVISORY NOW IN EFFECT UNTIL 5 PM MST /4 PM PST/
WEDNESDAY...

THE WIND ADVISORY IS NOW IN EFFECT UNTIL 5 PM MST /4 PM PST/
WEDNESDAY. 

* AFFECTED AREA: THE LOWER DESERTS OF SOUTHWEST ARIZONA AND SOUTHEAST
  CALIFORNIA...INCLUDING THE LOWER COLORADO RIVER VALLEY BETWEEN
  BLYTHE AND YUMA.

* TIMING: STRONG GUSTY NORTH WINDS WILL DEVELOP THIS AFTERNOON 
  AND EVENING AND PEAK IN STRENGTH AFTER MIDNIGHT. THE STRONG 
  WINDS WILL PERSIST THROUGH THE AFTERNOON HOURS ON WEDNESDAY.

* WINDS: STRONG GUSTY NORTH WINDS FROM 20 TO OVER 40 MPH ARE 
  EXPECTED. PEAK GUSTS LATER TONIGHT THROUGH WEDNESDAY 
  AFTERNOON COULD REACH TO AROUND 50 MPH.

* IMPACTS: STRONG WINDS COULD GENERATE AREAS OF BLOWING DUST AND
  SAND WHICH WOULD SHARPLY LOWER VISIBILITY. THIS WOULD BE A 
  HAZARD TO MOTORISTS. IN ADDITION...GUSTY SHIFTING CROSSWINDS 
  COULD BE DANGEROUS TO DRIVERS OF HIGH PROFILE VEHICLES ON 
  EAST- WEST ORIENTED ROADS AND HIGHWAYS SUCH AS INTERSTATE 10 
  NEAR BLYTHE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 TO WELL UNDER
A MILE AT TIMES IN BLOWING DUST OR BLOWING SAND. USE EXTRA
CAUTION.

&&

$$

NATIONAL WEATHER SERVICE PHOENIX IS ON THE INTERNET AT

WEATHER.GOV/PHOENIX

219 
WWUS75 KPSR 021126
NPWPSR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PHOENIX AZ
426 AM MST WED FEB 2 2011

.A COLD CANADIAN AIR-MASS IS FORECAST TO MOVE SOUTH INTO THE
REGION...WITH THE POTENTIAL FOR WIDESPREAD FREEZING LOW
TEMPERATURES ON THE SOUTHWEST AND SOUTH CENTRAL ARIZONA DESERTS
THIS MORNING AS WELL AS THURSDAY AND FRIDAY MORNINGS. IN ADDITION
STRONG GUSTY WINDS WILL CONTINUE OVER THE LOWER WESTERN DESERTS
TODAY.

AZZ021-026-022300-
/O.UPG.KPSR.FZ.A.0003.110204T0300Z-110204T1700Z/
/O.NEW.KPSR.FZ.W.0008.110204T0600Z-110204T1700Z/
/O.CON.KPSR.FZ.W.0006.000000T0000Z-110202T1600Z/
/O.CON.KPSR.FZ.W.0007.110203T0600Z-110203T1700Z/
/O.CON.KPSR.WI.Y.0002.000000T0000Z-110203T0000Z/
WEST CENTRAL DESERTS-SOUTHWEST DESERTS-
INCLUDING THE CITIES OF...QUARTZSITE...SALOME...TACNA...WELLTON
426 AM MST WED FEB 2 2011

...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM MST THIS
MORNING...
...WIND ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...
...FREEZE WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
10 AM MST THURSDAY...
...FREEZE WARNING IN EFFECT FROM 11 PM THURSDAY TO 10 AM MST
FRIDAY...

THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ISSUED A FREEZE
WARNING...WHICH IS IN EFFECT FROM 11 PM THURSDAY TO 10 AM MST
FRIDAY. THE FREEZE WATCH IS NO LONGER IN EFFECT. A FREEZE WARNING
REMAINS IN EFFECT UNTIL 9 AM MST THIS MORNING. A FREEZE WARNING ALSO
REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 10 AM MST THURSDAY. A
WIND ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON.

* AFFECTED AREA: THE SOUTHWESTERN ARIZONA DESERTS INCLUDING THE 
  COMMUNITIES OF PARKER...TACNA...QUARTZSITE AND WENDEN. 

* TEMPERATURE: THERE IS POTENTIAL FOR LOW TEMPERATURES TO FALL 
  INTO THE 20S AND LOWER 30S ON THE DESERTS.

* IMPACTS: OVERNIGHT BELOW FREEZING TEMPERATURES COULD RESULT 
  IN RUPTURED PLASTIC IRRIGATION PIPES...OR DESTROY FROST 
  SENSITIVE PLANTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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 TO WELL UNDER A MILE AT TIMES IN
BLOWING DUST OR BLOWING SAND. USE EXTRA CAUTION.

&&

$$

AZZ022-023-027-028-022300-
/O.UPG.KPSR.FZ.A.0003.110204T0300Z-110204T1700Z/
/O.NEW.KPSR.FZ.W.0008.110204T0600Z-110204T1700Z/
/O.CON.KPSR.FZ.W.0006.000000T0000Z-110202T1600Z/
/O.CON.KPSR.FZ.W.0007.110203T0600Z-110203T1700Z/
NORTHWEST MARICOPA COUNTY-GREATER PHOENIX AREA-
SOUTHWEST MARICOPA COUNTY-
NORTHWEST AND NORTH CENTRAL PINAL COUNTY-
INCLUDING THE CITIES OF...BUCKEYE...NEW RIVER...WICKENBURG...
MESA...PHOENIX...GILA BEND...APACHE JUNCTION...CASA GRANDE...
FLORENCE
426 AM MST WED FEB 2 2011

...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM MST THIS
MORNING...
...FREEZE WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
10 AM MST THURSDAY...
...FREEZE WARNING IN EFFECT FROM 11 PM THURSDAY TO 10 AM MST
FRIDAY...

THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ISSUED A FREEZE
WARNING...WHICH IS IN EFFECT FROM 11 PM THURSDAY TO 10 AM MST
FRIDAY. THE FREEZE WATCH IS NO LONGER IN EFFECT. A FREEZE WARNING
REMAINS IN EFFECT UNTIL 9 AM MST THIS MORNING. IN ADDITION...A
FREEZE WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 10 AM MST
THURSDAY.

* AFFECTED AREA: MOST OF THE SOUTHWEST AND SOUTH CENTRAL ARIZONA 
  DESERTS... INCLUDING THE GREATER PHOENIX AREA...GILA BEND... 
  BUCKEYE... COOLIDGE...AND CASA GRANDE. 

* TEMPERATURE: THERE IS POTENTIAL FOR LOW TEMPERATURES FALL INTO THE
  20S AND LOWER 30S ON THE DESERTS. SOME OF THE COLDEST OUTLYING AREAS
  MAY EVEN FALL INTO THE TEENS ON THURSDAY MORNING.

* IMPACTS: OVERNIGHT BELOW FREEZING TEMPERATURES COULD RESULT IN
  RUPTURED PLASTIC IRRIGATION PIPES...OR COULD DESTROY CITRUS...OTHER
  CROPS AND FROST SENSITIVE PLANTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

AZZ020-025-CAZ031>033-022300-
/O.CON.KPSR.WI.Y.0002.000000T0000Z-110203T0000Z/
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...
FORTUNA FOOTHILLS...YUMA...BLYTHE...CHIRIACO SUMMIT...
DESERT CENTER...BRAWLEY...CALEXICO...EL CENTRO
426 AM MST WED FEB 2 2011 /326 AM PST WED FEB 2 2011/

...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. 

* AFFECTED AREA: THE LOWER DESERTS OF SOUTHWEST ARIZONA AND 
  SOUTHEAST CALIFORNIA...INCLUDING THE LOWER COLORADO RIVER 
  VALLEY BETWEEN BLYTHE AND YUMA. 

* TIMING: STRONG GUSTY NORTH WINDS WILL PERSIST THROUGH THE AFTERNOON
  HOURS TODAY.

* WINDS: STRONG GUSTY NORTH WINDS FROM 20 TO OVER 40 MPH ARE
  EXPECTED. PEAK GUSTS THROUGH THIS AFTERNOON COULD REACH TO NEAR 50
  MPH...ESPECIALLY ALONG THE LOWER COLORADO RIVER VALLEY.

* IMPACTS: STRONG WINDS COULD GENERATE AREAS OF BLOWING DUST AND SAND
  WHICH WOULD SHARPLY LOWER VISIBILITY. THIS WOULD BE A HAZARD TO
  MOTORISTS. IN ADDITION...GUSTY SHIFTING CROSSWINDS COULD BE
  DANGEROUS TO DRIVERS OF HIGH PROFILE VEHICLES ON EAST TO WEST
  ORIENTED ROADS AND HIGHWAYS SUCH AS INTERSTATE 10 NEAR BLYTHE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 TO WELL UNDER
A MILE AT TIMES IN BLOWING DUST OR BLOWING SAND. USE EXTRA
CAUTION.

&&

$$

NATIONAL WEATHER SERVICE PHOENIX IS ON THE INTERNET AT

WEATHER.GOV/PHOENIX

BRECKENRIDGE

329 
WWUS75 KPSR 021715
NPWPSR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PHOENIX AZ
1015 AM MST WED FEB 2 2011

.A COLD CANADIAN AIR MASS HAS MOVED SOUTH INTO THE REGION...WITH THE
POTENTIAL FOR WIDESPREAD FREEZING LOW TEMPERATURES ON THE SOUTHWEST
AND SOUTH CENTRAL ARIZONA DESERTS THIS MORNING AS WELL AS THURSDAY
AND FRIDAY MORNINGS. IN ADDITION STRONG GUSTY WINDS WILL CONTINUE
OVER THE LOWER WESTERN DESERTS TODAY ALONG THE LOWER COLORADO RIVER
VALLEY.

AZZ021-026-030515-
/O.CAN.KPSR.WI.Y.0002.000000T0000Z-110203T0000Z/
/O.CON.KPSR.FZ.W.0007.110203T0600Z-110203T1700Z/
/O.CON.KPSR.FZ.W.0008.110204T0600Z-110204T1700Z/
WEST CENTRAL DESERTS-SOUTHWEST DESERTS-
INCLUDING THE CITIES OF...QUARTZSITE...SALOME...TACNA... WELLTON
1015 AM MST WED FEB 2 2011

...FREEZE WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
10 AM MST THURSDAY...
...FREEZE WARNING REMAINS IN EFFECT FROM 11 PM THURSDAY TO 10 AM
MST FRIDAY...
...WIND ADVISORY IS CANCELLED...

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

* IMPACTS: THE WINDS HAVE BEGUN TO DIMINISH BELOW ADVISORY CRITERIA.

A FREEZE WARNING REMAINS IN EFFECT FROM 11 PM THIS
EVENING TO 10 AM MST THURSDAY. A FREEZE WARNING REMAINS IN EFFECT
FROM 11 PM THURSDAY TO 10 AM MST FRIDAY. 


* AFFECTED AREA: THE SOUTHWESTERN ARIZONA DESERTS INCLUDING THE 
  COMMUNITIES OF PARKER...TACNA...QUARTZSITE AND WENDEN. 

* TEMPERATURE: THERE IS POTENTIAL FOR LOW TEMPERATURES TO FALL 
  INTO THE 20S AND LOWER 30S ON THE DESERTS.

* IMPACTS: OVERNIGHT BELOW FREEZING TEMPERATURES COULD RESULT 
  IN RUPTURED PLASTIC IRRIGATION PIPES...OR DESTROY FROST 
  SENSITIVE PLANTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ032-033-021815-
/O.CAN.KPSR.WI.Y.0002.000000T0000Z-110203T0000Z/
RIVERSIDE COUNTY/EASTERN DESERTS-IMPERIAL COUNTY-
INCLUDING THE CITIES OF...CHIRIACO SUMMIT...DESERT CENTER...
BRAWLEY...CALEXICO...EL CENTRO
915 AM PST WED FEB 2 2011

...WIND ADVISORY IS CANCELLED...

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

* IMPACTS: WINDS HAVE DIMINISHED AND ADVISORY CRITERIA ARE NO LONGER
  EXPECTED TO BE MET.

$$

AZZ022-023-027-028-030515-
/O.CON.KPSR.FZ.W.0007.110203T0600Z-110203T1700Z/
/O.CON.KPSR.FZ.W.0008.110204T0600Z-110204T1700Z/
NORTHWEST MARICOPA COUNTY-GREATER PHOENIX AREA-
SOUTHWEST MARICOPA COUNTY-
NORTHWEST AND NORTH CENTRAL PINAL COUNTY-
INCLUDING THE CITIES OF...BUCKEYE...NEW RIVER...WICKENBURG...
MESA...PHOENIX...GILA BEND...APACHE JUNCTION...CASA GRANDE...
FLORENCE
1015 AM MST WED FEB 2 2011

...FREEZE WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
10 AM MST THURSDAY...
...FREEZE WARNING REMAINS IN EFFECT FROM 11 PM THURSDAY TO 10 AM
MST FRIDAY...

A FREEZE WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
10 AM MST THURSDAY. A FREEZE WARNING REMAINS IN EFFECT FROM 11 PM
THURSDAY TO 10 AM MST FRIDAY. 

* AFFECTED AREA: MOST OF THE SOUTHWEST AND SOUTH CENTRAL ARIZONA 
  DESERTS... INCLUDING THE GREATER PHOENIX AREA...GILA BEND... 
  BUCKEYE... COOLIDGE...AND CASA GRANDE. 

* TEMPERATURE: THERE IS POTENTIAL FOR LOW TEMPERATURES FALL INTO
  THE 20S AND LOWER 30S ON THE DESERTS. SOME OF THE COLDEST 
  OUTLYING AREAS MAY EVEN FALL INTO THE TEENS ON THURSDAY 
  MORNING.

* IMPACTS: OVERNIGHT BELOW FREEZING TEMPERATURES COULD RESULT 
  IN RUPTURED PLASTIC IRRIGATION PIPES...OR COULD DESTROY 
  CITRUS... OTHER CROPS AND FROST SENSITIVE PLANTS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

AZZ020-025-CAZ031-030000-
/O.CON.KPSR.WI.Y.0002.000000T0000Z-110203T0000Z/
LOWER COLORADO RIVER VALLEY AZ-YUMA/MARTINEZ LAKE AND VICINITY-
LOWER COLORADO RIVER VALLEY CA-
INCLUDING THE CITIES OF...EHRENBERG...PARKER...
FORTUNA FOOTHILLS...YUMA...BLYTHE
1015 AM MST WED FEB 2 2011 /915 AM PST WED FEB 2 2011/

...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. 

* AFFECTED AREA: THE LOWER DESERTS OF SOUTHWEST ARIZONA AND 
  SOUTHEAST CALIFORNIA...INCLUDING THE LOWER COLORADO RIVER 
  VALLEY BETWEEN BLYTHE AND YUMA. 

* TIMING: STRONG GUSTY NORTH WINDS WILL PERSIST THROUGH THE
  AFTERNOON HOURS TODAY. 

* WINDS: STRONG GUSTY NORTH WINDS FROM 20 TO OVER 40 MPH ARE 
  EXPECTED. PEAK GUSTS THROUGH THIS AFTERNOON COULD REACH TO 
  NEAR50 MPH...ESPECIALLY ALONG THE LOWER COLORADO RIVER 
  VALLEY. 

* IMPACTS: STRONG WINDS COULD GENERATE AREAS OF BLOWING DUST AND
  SAND WHICH WOULD SHARPLY LOWER VISIBILITY. THIS WOULD BE A 
  HAZARD TO MOTORISTS. IN ADDITION...GUSTY SHIFTING CROSSWINDS 
  COULD BE DANGEROUS TO DRIVERS OF HIGH PROFILE VEHICLES ON 
  EAST TO WEST ORIENTED ROADS AND HIGHWAYS SUCH AS INTERSTATE 
  10 NEAR BLYTHE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 TO WELL UNDER
A MILE AT TIMES IN BLOWING DUST OR BLOWING SAND. USE EXTRA
CAUTION.

&&

$$

NATIONAL WEATHER SERVICE PHOENIX IS ON THE INTERNET AT

WEATHER.GOV/PHOENIX

868 
WWUS75 KPSR 022048
NPWPSR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PHOENIX AZ
148 PM MST WED FEB 2 2011

.A COLD CANADIAN AIR MASS HAS MOVED SOUTH INTO THE REGION...WITH
THE POTENTIAL FOR WIDESPREAD FREEZING LOW TEMPERATURES TONIGHT OVER THE
SOUTHWEST AND SOUTH CENTRAL ARIZONA DESERTS...AS WELL AS THE
SOUTHEAST CALIFORNIA DESERTS AND HIGHER TERRAIN OF JOSHUA TREE
NATIONAL PARK. STRONG GUSTY NORTHERLY WINDS WILL CONTINUE
TODAY...DECREASING BY THIS EVENING...WITH FREEZING TEMPERATURES
EXPECTED AGAIN THURSDAY NIGHT INTO FRIDAY MORNING.

AZZ023-028-030900-
/O.CAN.KPSR.FZ.W.0007.110203T0600Z-110203T1700Z/
/O.NEW.KPSR.HZ.W.0001.110203T0600Z-110203T1700Z/
/O.CON.KPSR.FZ.W.0008.110204T0600Z-110204T1700Z/
GREATER PHOENIX AREA-NORTHWEST AND NORTH CENTRAL PINAL COUNTY-
INCLUDING THE CITIES OF...BUCKEYE...MESA...PHOENIX... APACHE
JUNCTION...CASA GRANDE...FLORENCE
148 PM MST WED FEB 2 2011

...FREEZE WARNING UPGRADED TO HARD FREEZE WARNING IN EFFECT FROM 11
PM THIS EVENING TO 10 AM MST THURSDAY FOR THE GREATER PHOENIX AREA
AND PORTIONS OF NORTH CENTRAL PINAL COUNTY... 
...FREEZE WARNING REMAINS IN EFFECT FROM 11 PM THURSDAY TO 10 AM MST
FRIDAY FOR PORTIONS OF SOUTH- CENTRAL ARIZONA AND SOUTHWEST
ARIZONA...

THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ISSUED A HARD FREEZE
WARNING...WHICH IS IN EFFECT FROM 11 PM THIS EVENING TO 10 AM MST
THURSDAY FOR THE GREATER PHOENIX AREA AND PORTIONS OF NORTHERN PINAL
COUNTY...INCLUDING CASA GRANDE. A FREEZE WARNING REMAINS IN EFFECT
FROM 11 PM THURSDAY TO 10 AM MST FRIDAY.

* AFFECTED AREA: MOST OF THE SOUTHWEST AND SOUTH CENTRAL ARIZONA 
  DESERTS... INCLUDING THE GREATER PHOENIX AREA...GILA BEND... 
  BUCKEYE... COOLIDGE...AND CASA GRANDE. 

* TEMPERATURE: THERE IS POTENTIAL FOR LOW TEMPERATURES FALL 
  INTO THE 20S AND LOWER 30S ON THE DESERTS. SOME OF THE 
  COLDEST OUTLYING AREAS MAY EVEN FALL INTO THE TEENS ON 
  THURSDAY MORNING.

* IMPACTS: OVERNIGHT BELOW FREEZING TEMPERATURES COULD RESULT 
  IN RUPTURED PLASTIC IRRIGATION PIPES...OR COULD DESTROY 
  CITRUS... OTHER CROPS AND FROST SENSITIVE PLANTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

AZZ020-025-CAZ031-030900-
/O.EXA.KPSR.FZ.W.0007.110203T0600Z-110203T1700Z/
/O.CON.KPSR.WI.Y.0002.000000T0000Z-110203T0000Z/
LOWER COLORADO RIVER VALLEY AZ-YUMA/MARTINEZ LAKE AND VICINITY-
LOWER COLORADO RIVER VALLEY CA-
INCLUDING THE CITIES OF...EHRENBERG...PARKER...
FORTUNA FOOTHILLS...YUMA...BLYTHE
148 PM MST WED FEB 2 2011 /1248 PM PST WED FEB 2 2011/

...WIND ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST /4 PM PST/ THIS
AFTERNOON FOR THE LOWER COLORADO RIVER VALLEY...
...FREEZE WARNING IN EFFECT FROM 11 PM MST /10 PM PST/ THIS EVENING
TO 10 AM MST /9 AM PST/ THURSDAY FOR THE LOWER COLORADO RIVER VALLEY...

THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ISSUED A FREEZE
WARNING...WHICH IS IN EFFECT FROM 11 PM MST /10 PM PST/ THIS
EVENING TO 10 AM MST /9 AM PST/ THURSDAY. A WIND ADVISORY REMAINS
IN EFFECT UNTIL 5 PM MST /4 PM PST/ THIS AFTERNOON. 

* AFFECTED AREA: THE LOWER DESERTS OF SOUTHWEST ARIZONA AND 
  SOUTHEAST CALIFORNIA...INCLUDING THE LOWER COLORADO RIVER 
  VALLEY BETWEEN BLYTHE AND YUMA. 

* TIMING: STRONG GUSTY NORTH WINDS WILL PERSIST THROUGH THE AFTERNOON
  HOURS TODAY. OVERNIGHT TEMPERATURES WILL BOTTOM OUT IN THE UPPER
  20S TO LOW 30S.

* WINDS: STRONG GUSTY NORTH WINDS FROM 20 TO OVER 40 MPH ARE 
  EXPECTED. PEAK GUSTS THROUGH THIS AFTERNOON COULD REACH TO 
  NEAR50 MPH...ESPECIALLY ALONG THE LOWER COLORADO RIVER 
  VALLEY. 

* IMPACTS: STRONG WINDS COULD GENERATE AREAS OF BLOWING DUST AND SAND
  WHICH WOULD SHARPLY LOWER VISIBILITY. THIS WOULD BE A HAZARD TO
  MOTORISTS. IN ADDITION...GUSTY SHIFTING CROSSWINDS COULD BE
  DANGEROUS TO DRIVERS OF HIGH PROFILE VEHICLES ON EAST TO WEST
  ORIENTED ROADS AND HIGHWAYS SUCH AS INTERSTATE 10 NEAR BLYTHE.
  OVERNIGHT BELOW FREEZING TEMPERATURES COULD RESULT IN RUPTURED
  PLASTIC IRRIGATION PIPES...OR COULD DESTROY CITRUS... OTHER CROPS
  AND FROST SENSITIVE PLANTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 TO WELL UNDER
A MILE AT TIMES IN BLOWING DUST OR BLOWING SAND. USE EXTRA
CAUTION.

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

&&

$$

CAZ030-032-033-030900-
/O.EXA.KPSR.FZ.W.0007.110203T0600Z-110203T1700Z/
JOSHUA TREE NATIONAL PARK-RIVERSIDE COUNTY/EASTERN DESERTS-
IMPERIAL COUNTY-
INCLUDING THE CITIES OF...COTTONWOOD VISITOR CENTER...
CHIRIACO SUMMIT...DESERT CENTER...BRAWLEY...CALEXICO...EL CENTRO
1248 PM PST WED FEB 2 2011

...FREEZE WARNING IN EFFECT FROM 10 PM THIS EVENING TO 9 AM PST
THURSDAY FOR JOSHUA TREE NATIONAL PARK...

THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ISSUED A FREEZE
WARNING...WHICH IS IN EFFECT FROM 10 PM THIS EVENING TO 9 AM PST
THURSDAY. 

* AFFECTED AREA: THE HIGHER TERRAIN LOCALES OF SOUTHEAST CALIFORNIA
  INCLUDING JOSHUA TREE NATIONAL PARK.

* TEMPERATURE: THERE IS POTENTIAL FOR LOW TEMPERATURES FALL INTO THE
  LOW 20S TO UPPER 20S. 

* IMPACTS: OVERNIGHT BELOW FREEZING TEMPERATURES COULD RESULT 
  IN RUPTURED PLASTIC IRRIGATION PIPES...OR COULD DESTROY 
  CITRUS... OTHER CROPS AND FROST SENSITIVE PLANTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

AZZ021-022-026-027-030900-
/O.CON.KPSR.FZ.W.0007.110203T0600Z-110203T1700Z/
/O.CON.KPSR.FZ.W.0008.110204T0600Z-110204T1700Z/
WEST CENTRAL DESERTS-NORTHWEST MARICOPA COUNTY-SOUTHWEST DESERTS-
SOUTHWEST MARICOPA COUNTY-
INCLUDING THE CITIES OF...QUARTZSITE...SALOME...BUCKEYE...
NEW RIVER...WICKENBURG...TACNA...WELLTON...GILA BEND
148 PM MST WED FEB 2 2011

...FREEZE WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
10 AM MST THURSDAY...
...FREEZE WARNING REMAINS IN EFFECT FROM 11 PM THURSDAY TO 10 AM
MST FRIDAY...

A FREEZE WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
10 AM MST THURSDAY. A FREEZE WARNING REMAINS IN EFFECT FROM 11 PM
THURSDAY TO 10 AM MST FRIDAY. 

* AFFECTED AREA: MOST OF THE SOUTHWEST AND SOUTH CENTRAL ARIZONA 
  DESERTS... INCLUDING THE GREATER PHOENIX AREA...GILA BEND... 
  BUCKEYE... COOLIDGE...AND CASA GRANDE. 

* TEMPERATURE: THERE IS POTENTIAL FOR LOW TEMPERATURES FALL 
  INTO THE 20S AND LOWER 30S ON THE DESERTS. SOME OF THE 
  COLDEST OUTLYING AREAS MAY EVEN FALL INTO THE TEENS ON 
  THURSDAY MORNING.

* IMPACTS: OVERNIGHT BELOW FREEZING TEMPERATURES COULD RESULT 
  IN RUPTURED PLASTIC IRRIGATION PIPES...OR COULD DESTROY 
  CITRUS... OTHER CROPS AND FROST SENSITIVE PLANTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

NATIONAL WEATHER SERVICE PHOENIX IS ON THE INTERNET AT

WEATHER.GOV/PHOENIX

071 
WWUS75 KPSR 030210
NPWPSR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PHOENIX AZ
710 PM MST WED FEB 2 2011

.A COLD CANADIAN AIR MASS HAS MOVED SOUTH INTO THE REGION...WITH
THE POTENTIAL FOR WIDESPREAD FREEZING LOW TEMPERATURES TONIGHT
OVER THE SOUTHWEST AND SOUTH CENTRAL ARIZONA DESERTS...AS WELL AS
THE SOUTHEAST CALIFORNIA DESERTS AND HIGHER TERRAIN OF JOSHUA
TREE NATIONAL PARK. NORTHERLY WINDS HAVE DECREASED...AND SHOULD DROP
OFF EVEN MORE AFTER MIDNIGHT. VERY DRY AIR WILL ALLOW RAPID COOLING
DURING THE OVERNIGHT HOURS INTO THURSDAY MORNING. FREEZING TEMPERATURES
ARE EXPECTED AGAIN THURSDAY NIGHT INTO FRIDAY MORNING...ALTHOUGH NOT
QUITE AS COLD AS TONIGHT.

AZZ023-028-031415-
/O.CON.KPSR.HZ.W.0001.110203T0600Z-110203T1700Z/
/O.CON.KPSR.FZ.W.0008.110204T0600Z-110204T1700Z/
GREATER PHOENIX AREA-NORTHWEST AND NORTH CENTRAL PINAL COUNTY-
INCLUDING THE CITIES OF...BUCKEYE...MESA...PHOENIX...
APACHE JUNCTION...CASA GRANDE...FLORENCE
710 PM MST WED FEB 2 2011

...HARD FREEZE WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING
TO 10 AM MST THURSDAY...
...FREEZE WARNING REMAINS IN EFFECT FROM 11 PM THURSDAY TO 10 AM
MST FRIDAY...

A HARD FREEZE WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING
TO 10 AM MST THURSDAY. A FREEZE WARNING REMAINS IN EFFECT FROM
11 PM THURSDAY TO 10 AM MST FRIDAY. 

* AFFECTED AREA: MOST OF THE SOUTHWEST AND SOUTH CENTRAL ARIZONA
  DESERTS...INCLUDING THE GREATER PHOENIX AREA...GILA BEND...
  BUCKEYE...COOLIDGE...AND CASA GRANDE.

* TEMPERATURE: THERE IS POTENTIAL FOR LOW TEMPERATURES FALL INTO THE
  20S AND LOWER 30S ON THE DESERTS. SOME OF THE COLDEST OUTLYING
  AREAS MAY EVEN FALL INTO THE TEENS ON THURSDAY MORNING. SOUTH
  CHANDLER AND QUEEN CREEK COULD SEE READINGS DOWN TO 19 DEGREES.

* IMPACTS: OVERNIGHT BELOW FREEZING TEMPERATURES COULD RESULT IN
  RUPTURED PLASTIC IRRIGATION PIPES...OR COULD DESTROY CITRUS...OTHER
  CROPS AND FROST SENSITIVE PLANTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

UNUSUALLY COLD WEATHER IS EXPECTED TONIGHT. A HARD FREEZE WARNING
MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR HIGHLY LIKELY. THESE
CONDITIONS WILL DESTROY OR DAMAGE CROPS AND OTHER SENSITIVE
VEGETATION. PROTECT YOUR PETS. COVER YOUR FROST SENSITIVE PLANTS.

&&

$$

AZZ021-022-026-027-031415-
/O.CON.KPSR.FZ.W.0007.110203T0600Z-110203T1700Z/
/O.CON.KPSR.FZ.W.0008.110204T0600Z-110204T1700Z/
WEST CENTRAL DESERTS-NORTHWEST MARICOPA COUNTY-SOUTHWEST DESERTS-
SOUTHWEST MARICOPA COUNTY-
INCLUDING THE CITIES OF...QUARTZSITE...SALOME...BUCKEYE...
NEW RIVER...WICKENBURG...TACNA...WELLTON...GILA BEND
710 PM MST WED FEB 2 2011

...FREEZE WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
10 AM MST THURSDAY...
...FREEZE WARNING REMAINS IN EFFECT FROM 11 PM THURSDAY TO 10 AM
MST FRIDAY...

A FREEZE WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
10 AM MST THURSDAY. A FREEZE WARNING REMAINS IN EFFECT FROM 11 PM
THURSDAY TO 10 AM MST FRIDAY. 

* AFFECTED AREA: MOST OF THE SOUTHWEST AND SOUTH CENTRAL ARIZONA 
  DESERTS... INCLUDING THE GREATER PHOENIX AREA...GILA BEND... 
  BUCKEYE... COOLIDGE...AND CASA GRANDE. 

* TEMPERATURE: THERE IS POTENTIAL FOR LOW TEMPERATURES FALL 
  INTO THE 20S AND LOWER 30S ON THE DESERTS. SOME OF THE 
  COLDEST OUTLYING AREAS MAY EVEN FALL INTO THE TEENS ON 
  THURSDAY MORNING.

* IMPACTS: OVERNIGHT BELOW FREEZING TEMPERATURES COULD RESULT 
  IN RUPTURED PLASTIC IRRIGATION PIPES...OR COULD DESTROY 
  CITRUS... OTHER CROPS AND FROST SENSITIVE PLANTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

AZZ020-025-CAZ030>033-031415-
/O.CON.KPSR.FZ.W.0007.110203T0600Z-110203T1700Z/
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...
FORTUNA FOOTHILLS...YUMA...COTTONWOOD VISITOR CENTER...BLYTHE...
CHIRIACO SUMMIT...DESERT CENTER...BRAWLEY...CALEXICO...EL CENTRO
710 PM MST WED FEB 2 2011 /610 PM PST WED FEB 2 2011/

...FREEZE WARNING REMAINS IN EFFECT FROM 11 PM MST /10 PM PST/
THIS EVENING TO 10 AM MST /9 AM PST/ THURSDAY...

A FREEZE WARNING REMAINS IN EFFECT FROM 11 PM MST /10 PM PST/
THIS EVENING TO 10 AM MST /9 AM PST/ THURSDAY. 

* AFFECTED AREA: THE LOWER DESERTS OF SOUTHWEST ARIZONA AND 
  SOUTHEAST CALIFORNIA...INCLUDING THE LOWER COLORADO RIVER 
  VALLEY BETWEEN BLYTHE AND YUMA. 

* TIMING: WINDS WILL DECREASE THIS EVENING...WHICH WILL ALLOW
  TEMPERATURES TO DIP BELOW FREEZING AFTER MIDNIGHT. LOWS WILL BOTTOM
  OUT IN THE UPPER 20S TO LOW 30S BY ABOUT 6 AM.

* WINDS: NORTH WINDS WILL GENERALLY RANGE FROM 10 TO 20 MPH...WITH AN
  OCCASIONAL GUST TO NEAR 30 MPH.

* IMPACTS: SUB FREEZING TEMPERATURES COULD RESULT IN RUPTURED PLASTIC
  IRRIGATION PIPES...OR COULD DESTROY CITRUS...OTHER CROPS AND FROST
  SENSITIVE PLANTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

NATIONAL WEATHER SERVICE PHOENIX IS ON THE INTERNET AT

WEATHER.GOV/PHOENIX

863 
WWUS75 KPSR 030947
NPWPSR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PHOENIX AZ
247 AM MST THU FEB 3 2011

.A VERY COLD AIR MASS WILL CONTINUE TO BRING DANGEROUSLY COLD
TEMPERATURES TO THE REGION THIS MORNING AS WELL AS AGAIN LATE
TONIGHT. THE COMBINATION OF CLEAR SKIES AND LIGHT WINDS WILL ALLOW
MINIMUM TEMPERATURES TO DROP BELOW FREEZING IN MOST LOCATIONS ACROSS
SOUTH CENTRAL ARIZONA AND SOUTHEAST CALIFORNIA.

AZZ023-028-032200-
/O.CON.KPSR.HZ.W.0001.000000T0000Z-110203T1700Z/
/O.CON.KPSR.FZ.W.0008.110204T0600Z-110204T1700Z/
GREATER PHOENIX AREA-NORTHWEST AND NORTH CENTRAL PINAL COUNTY-
INCLUDING THE CITIES OF...BUCKEYE...MESA...PHOENIX...
APACHE JUNCTION...CASA GRANDE...FLORENCE
247 AM MST THU FEB 3 2011

...HARD FREEZE WARNING REMAINS IN EFFECT UNTIL 10 AM MST THIS
MORNING...
...FREEZE WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
10 AM MST FRIDAY...

A HARD FREEZE WARNING REMAINS IN EFFECT UNTIL 10 AM MST THIS
MORNING. A FREEZE WARNING REMAINS IN EFFECT FROM 11 PM THIS
EVENING TO 10 AM MST FRIDAY. 

* AFFECTED AREA: MOST OF THE SOUTHWEST AND SOUTH CENTRAL ARIZONA 
  DESERTS...INCLUDING THE GREATER PHOENIX AREA...GILA BEND... 
  BUCKEYE...COOLIDGE...AND CASA GRANDE. 

* TEMPERATURE: LOWS THIS MORNING WILL DROP INTO THE UPPER 20S IN
  PHOENIX AND COULD DROP INTO THE UPPER TEENS IN THE OUTLYING AREAS
  AND NORMALLY COLDER DESERT LOCATIONS. LOWS FRIDAY MORNING WILL DROP
  TO AROUND 30 IN PHOENIX AND INTO THE LOWER 20S IN THE USUALLY
  COLDER SPOTS. 

* IMPACTS: BELOW FREEZING TEMPERATURES COULD RESULT IN RUPTURED
  PLASTIC IRRIGATION PIPES AND COULD DESTROY CITRUS OR OTHER CROPS
  AND FROST SENSITIVE PLANTS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

UNUSUALLY COLD WEATHER IS EXPECTED THIS MORNING AND AGAIN TOMORROW MORNING.
A HARD FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL DESTROY OR DAMAGE CROPS AND
OTHER SENSITIVE VEGETATION. PROTECT YOUR PETS AND COVER YOUR FROST
SENSITIVE PLANTS.

&&

$$

AZZ021-022-026-027-032200-
/O.CON.KPSR.FZ.W.0007.000000T0000Z-110203T1700Z/
/O.CON.KPSR.FZ.W.0008.110204T0600Z-110204T1700Z/
WEST CENTRAL DESERTS-NORTHWEST MARICOPA COUNTY-SOUTHWEST DESERTS-
SOUTHWEST MARICOPA COUNTY-
INCLUDING THE CITIES OF...QUARTZSITE...SALOME...BUCKEYE...
NEW RIVER...WICKENBURG...TACNA...WELLTON...GILA BEND
247 AM MST THU FEB 3 2011

...FREEZE WARNING REMAINS IN EFFECT UNTIL 10 AM MST THIS
MORNING...
...FREEZE WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
10 AM MST FRIDAY...

A FREEZE WARNING REMAINS IN EFFECT UNTIL 10 AM MST THIS MORNING.
A FREEZE WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
10 AM MST FRIDAY. 

* AFFECTED AREA: PORTIONS OF THE SOUTHWEST AND SOUTH CENTRAL ARIZONA
  DESERTS INCLUDING BUCKEYE...GILA BEND...AND WICKENBURG.

* TEMPERATURE: LOWS THIS MORNING WILL DROP INTO THE LOWER 20S.
  SIMILAR TEMPERATURES ARE EXPECTED AGAIN FRIDAY MORNING. 

* IMPACTS: BELOW FREEZING TEMPERATURES COULD RESULT IN RUPTURED
  PLASTIC IRRIGATION PIPES AND COULD DESTROY CITRUS OR OTHER CROPS
  AND FROST SENSITIVE PLANTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

AZZ020-025-CAZ030>033-031700-
/O.CON.KPSR.FZ.W.0007.000000T0000Z-110203T1700Z/
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...
FORTUNA FOOTHILLS...YUMA...COTTONWOOD VISITOR CENTER...BLYTHE...
CHIRIACO SUMMIT...DESERT CENTER...BRAWLEY...CALEXICO...EL CENTRO
247 AM MST THU FEB 3 2011 /147 AM PST THU FEB 3 2011/

...FREEZE WARNING REMAINS IN EFFECT UNTIL 10 AM MST /9 AM PST/
THIS MORNING...

A FREEZE WARNING REMAINS IN EFFECT UNTIL 10 AM MST /9 AM PST/
THIS MORNING. 

* AFFECTED AREA: PORTIONS OF SOUTHEAST CALIFORNIA AND EXTREME
  SOUTHWESTERN ARIZONA...INCLUDING THE CITIES OF YUMA...IMPERIAL...EL
  CENTRO...BLYTHE...AS WELL AS JOSHUA TREE NATIONAL PARK. 

* TEMPERATURE: LOWS THIS MORNING WILL DROP TO AROUND 30 DEGREES AT
  YUMA...AND INTO THE UPPER 20S AT EL CENTRO...IMPERIA...AND BLYTHE. 

* IMPACTS: BELOW FREEZING TEMPERATURES COULD RESULT IN RUPTURED
  PLASTIC IRRIGATION PIPES AND COULD DESTROY CITRUS OR OTHER CROPS
  AND FROST SENSITIVE PLANTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

NATIONAL WEATHER SERVICE PHOENIX IS ON THE INTERNET AT

WEATHER.GOV/PHOENIX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PHOENIX AZ
915 PM MST MON JAN 31 2011

.SYNOPSIS...
A DRY AND COLD LOW PRESSURE SYSTEM IS FORECAST TO SETTLE OVER THE
REGION THE REMAINDER OF THE WEEK. MOSTLY CLEAR SKIES ARE
EXPECTED...WITH THE EXCEPTION OF ISOLATED AFTERNOON SNOW SHOWERS
OVER THE MOUNTAINS OF SOUTH CENTRAL ARIZONA TUESDAY. A MUCH COLDER
AIRMASS WILL DEVELOP OVER THE REGION WEDNESDAY THROUGH FRIDAY...WITH
WIDESPREAD FREEZING TEMPERATURES POSSIBLE WEDNESDAY AND THURSDAY
MORNINGS ON THE SOUTHWEST AND SOUTH CENTRAL ARIZONA DESERTS. WINDY
CONDITIONS WILL ALSO DEVELOP IN SOUTHEAST CALIFORNIA AND SOUTHWEST
ARIZONA WEDNESDAY AND THURSDAY. CLEAR AND WARMER WEATHER IS EXPECTED
THIS WEEKEND.

&&

.DISCUSSION...
NOTE: A VERY COLD CANADIAN AIRMASS WILL MOVE INTO THE REGION TUESDAY
NIGHT THROUGH FRIDAY MORNING. A FREEZE WATCH HAS BEEN ISSUED FOR A
LARGE PORTION OF SOUTHWEST AND SOUTH CENTRAL AZ...INCLUDING PHOENIX.

REMAINDER OF TONIGHT AND TUESDAY...
LATEST IR SATELLITE IMAGERY CONTINUED TO SHOW ONE SYSTEM ON ITS WAY
OUT OF OUR AREA...WHILE ANOTHER MUCH COLDER SYSTEM JUST STARTING TO
TAKE SHAPE ACROSS THE NORTHERN ROCKIES. SOME LINGERING INSTABILITY
SHOWERS WERE NOTED OVER MAINLY THE HIGHER TERRAIN BETWEEN ROOSEVELT
LAKE AND SAFFORD. IN FACT THE RAWS SITE AT SAN CARLOS HAD RECORDED
0.10 INCH OF PRECIP DURING THE LATE AFTERNOON/EARLY EVENING PERIOD.
CURRENT FORECASTS HANDLE THESE SHORT TERM TRENDS NICELY.

ELSEWHERE...SKIES WERE CLEAR OUT WEST AND WINDS WERE TAPERING OFF
ABOUT AS FORECAST. THIS WAS DUE TO A FLAT UPPER RIDGE EMBEDDED IN
THE FAST NORTHWESTERLY FLOW ALOFT. SOME CIRRUS-LEVEL CLOUDS WERE
ALSO SEEN RACING SOUTHWARD ACROSS UT/NV EARLY THIS EVENING. 00Z NAM
WAS ON TRACK WITH A DEVELOPING COLD UPPER LOW ACROSS THE ROCKIES.
VERY TIGHT GRADIENTS AND STRONG WINDS ARE LIKELY PARTICULARLY
TUESDAY NIGHT AND WEDNESDAY. AND THIS APPEARS TO BE THE CASE NOT
JUST ALONG THE LOWER COLORADO RIVER...BUT ALSO INTO PHOENIX.

DESERTS WILL GET A DOUBLE DOSE OF WINTER-LIKE WEATHER WHEN MINIMUM
TEMPS CHILL INTO THE 20S AND 30S. THE COLDEST NIGHT STILL APPEARS TO
BE WED NIGHT WHEN THE DRY AIR SETTLES IN...AND WINDS DIMINISH. NAM
850MB TEMPS TUMBLE TO ABOUT -4 TO -6C. THE FREEZE WATCH IS CERTAINLY
WARRANTED WITH THIS SCENARIO.

WEDNESDAY THROUGH FRIDAY...
A SECOND AND MUCH COLDER LOW PRESSURE FROM CANADA IS STILL FORECAST
TO MOVE INTO AZ TUESDAY NIGHT...THEN LINGER OVER THE REGION THROUGH
LATE THURSDAY.  THIS COLD AIRMASS HAS THE POTENTIAL TO CAUSE
WIDE-SPREAD FREEZING TEMPERATURES ON THE SOUTHWEST AND SOUTH CENTRAL
DESERTS...INCLUDING PHOENIX WED AND THU MORNINGS.  HOWEVER...GUSTY
NORTH TO NORTHEAST WINDS ARE ALSO FORECAST TO INCREASE WEDNESDAY
MORNING AND THURSDAY...WHICH MAY SERVE TO REDUCE THE COLD IMPACT.
IN WIND SHELTERED AREAS...TEMPS WILL REACH THEIR COLD POTENTIAL...
BUT IN BREEZY AREAS MINIMUM TEMPERATURES SHOULD BE ELEVATED.
THEREFORE...BECAUSE OF THE COLD POTENTIAL WED AND THU...A FREEZE
WATCH HAS BEEN ISSUED FOR WED...THU...AND FRI MORNINGS.  IT PERHAPS
WILL BE TOO WINDY ALONG THE COLORADO RIVER AND PORTIONS OF SOUTHEAST
CA FOR A FREEZE WATCH.

INTERESTING IS...NUMERICAL GUIDANCE FOR SKY HARBOR AIRPORT FOR WED
AND THU FORECAST NEAR RECORD BREAKING TEMPERATURES FOR COLD
AFTERNOONS AND COLD NIGHTS.

SATURDAY AND SUNDAY...
DRY NORTHWEST FLOW ALOFT SHOULD RESULT IN MOSTLY CLEAR SKIES AND
WARMER TEMPERATURES.

&&

.AVIATION...
SOUTH-CENTRAL ARIZONA...INCLUDING KPHX AND KIWA AIRFIELDS...WINDS
WILL CONTINUE TO DIMINISH THROUGH 01/12Z WITH MOSTLY CLEAR SKIES.
MUCH BIGGER CONCERN REMAINS FOR ALL OF SOUTH CENTRAL AZ ON TUESDAY
AND WEDNESDAY WHEN STRONG AND GUSTY WINDS WHIP UP WITH ANOTHER COLD
FRONT PASSAGE. LATEST MODEL RUN/00Z NAM/ GIVES SKY HARBOR WEST WINDS
AT 23 KNOTS FOR 02/00Z.

SOUTHWEST ARIZONA AND SOUTHEAST CALIFORNIA...INCLUDING KIPL AND KBLH
AIRFIELDS...

MOSTLY CLEAR SKIES AND LIGHT TO MODERATE WINDS TONIGHT. BIG CONCERN
REMAINS ACROSS THE AREA FOR TUESDAY AFTERNOON...TUESDAY NIGHT AND
INTO WED...WHEN NORTH WINDS INCREASES TO 25 TO 30 KTS. SOME BLOWING
DUST MAY NEED TO BE INSERTED INTO TAFS FOR KBLH.

AVIATION DISCUSSION NOT UPDATED FOR AMENDED TAFS.

&&

.FIRE WEATHER...
WEDNESDAY THROUGH SUNDAY...
A DRY AND VERY COLD AREA OF LOW PRESSURE WILL PUSH SOUTH ACROSS THE
AREA WEDNESDAY...BRINGING HIGH TEMPERATURES TO THE LOWER DESERT THAT
MAY BE 20 DEGREES OR MORE BELOW SEASONAL NORMALS. HIGH TEMPERATURES
OVER COOLER DESERTS WILL FALL INTO THE UPPER 40S. BREEZY TO VERY
WINDY WEATHER IS EXPECTED...WITH STRONG NORTH WINDS TO BLOW DOWN THE
LOWER COLORADO RIVER VALLEY. MINIMUM RH VALUES ARE FORECAST TO DROP
INTO THE SINGLE DIGITS DESPITE THE COOL AIR...AND COMBINED WITH THE
STRONG WINDS CONDITIONS MAY WELL APPROACH OR EXCEED CRITICAL FIRE
WEATHER THRESHOLDS WEDNESDAY OVER PORTIONS OF SOUTHWEST ARIZONA AND
SOUTHEAST CALIFORNIA. THE BEST BET FOR DANGEROUS FIRE WEATHER
CONDITIONS WILL BE ALONG THE LOWER COLORADO RIVER VALLEY WEDNESDAY.

CONTINUED VERY COOL AND DRY CONDITIONS ON THURSDAY...BUT WITH MUCH
LESS WIND...SO CRITICAL FIRE WEATHER THRESHOLDS SHOULD NOT BE
REACHED.

A DRY NORTHERLY FLOW ALOFT IS EXPECTED ACROSS THE AREA FRIDAY
THROUGH THE WEEKEND...ALLOWING FOR A WARMING TREND EACH DAY. BY THE
WEEKEND HIGHS OVER THE WARMER DESERTS WILL RANGE FROM MID 60S TO LOW
70S...A BIT BELOW SEASONAL NORMALS. MINIMUM RELATIVE HUMIDITIES WILL
REMAIN ON THE LOW SIDE BUT GRADUALLY RISE WITH VALUES CLIMBING INTO
THE MID TO UPPER TEENS OVER THE WEEKEND OVER LOWER DESERTS.

&&

.PSR WATCHES/WARNINGS/ADVISORIES...

AZ...FREEZE WATCH FROM TUESDAY EVENING THROUGH WEDNESDAY MORNING
     AZZ021>023-026>028.

     FREEZE WATCH FROM WEDNESDAY EVENING THROUGH THURSDAY MORNING
     AZZ021>023-026>028.

     FREEZE WATCH FROM THURSDAY EVENING THROUGH FRIDAY MORNING
     AZZ021>023-026>028.

CA...NONE.

&&

NATIONAL WEATHER SERVICE PHOENIX IS ON THE INTERNET AT

WEATHER.GOV/PHOENIX

DISCUSSION...SIPPLE/VASQUEZ
AVIATION...SIPPLE
FIRE WEATHER...CB/AJ

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PHOENIX AZ
624 AM MST MON JAN 31 2011

AZZ021>023-026>028-011330-
WEST CENTRAL DESERTS-NORTHWEST MARICOPA COUNTY-GREATER PHOENIX AREA-
SOUTHWEST DESERTS-SOUTHWEST MARICOPA COUNTY-
NORTHWEST AND NORTH CENTRAL PINAL COUNTY-
624 AM MST MON JAN 31 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH-CENTRAL
ARIZONA...SOUTHWEST ARIZONA AND WEST-CENTRAL ARIZONA.

.DAY ONE...TODAY AND TONIGHT
THERE WILL BE A SLIGHT CHANCE OF THUNDERSTORMS. IF ANY STORMS
FORM...THE MAIN HAZARD WILL BE LIGHTNING. NO DAMAGING WINDS...HAIL OR
FLOODING IS ANTICIPATED.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY
FREEZING TEMEPRATURES ARE EXPECTED TO BECOME WIDESPREAD WEDNESDAY
NIGHT AND THURSDAY NIGHT...LESS SO FRIDAY NIGHT. MITIGATION EFFORTS
WILL LIKELY BE NECESSARY TO PROTECT SENSITIVE POPULATIONS AND PLANTS.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

AZZ024-011330-
SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS-
624 AM MST MON JAN 31 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST-CENTRAL
ARIZONA.

.DAY ONE...TODAY AND TONIGHT
VALLEY RAIN AND MOUNTAIN SNOW SHOWERS ARE LIKELY TODAY AND WILL TAPER
OFF TONIGHT. SNOW LEVEL WILL BE NEAR 4500 FEET. ACCUMULATIONS UP TO
AN INCH ARE POSSIBLE ABOVE 5000 FEET. HOWEVER...ACCUMULATING SNOW IS
NOT ANTICIPATED ON ROADWAYS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY
THERE WILL BE A LINGERING SLIGHT CHANCE OF SHOWERS TUESDAY AND
WEDNESDAY OVER HIGHER TERRAIN EAST OF GLOBE. MUCH COLDER AIR AND
WINDY CONDITIONS CAN BE EXPECTED TUESDAY NIGHT THROUGH THURSDAY.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

AZZ020-025-CAZ030>033-011330-
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-
624 AM MST MON JAN 31 2011 /524 AM PST MON JAN 31 2011/

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
NO WEATHER HAZARDS EXPECTED.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY
VERY STRONG NORTH WINDS CAN BE EXPECTED TUESDAY NIGHT AND WEDNESDAY
WITH THE POTENTIAL TO CAUSE AREAS OF BLOWING DUST AND DIFFICULT
DRIVING CONDITIONS FOR MOTORISTS.

FREEZING LOW TEMPERATURES WILL BE COMMON WEDNESDAY NIGHT AND
THURSDAY NIGHT. MITIGATION EFFORTS WILL LIKELY BE NECESSARY TO
PROTECT SENSITIVE POPULATIONS AND PLANTS.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

NATIONAL WEATHER SERVICE PHOENIX IS ON THE INTERNET AT

WEATHER.GOV/PHOENIX