Dust Storm Warning 13, NWS Phoenix, AZ

560 
WWUS75 KPSR 112347
NPWPSR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PHOENIX AZ
447 PM MST SAT AUG 11 2012

AZZ023-120200-
/O.EXB.KPSR.DS.W.0013.000000T0000Z-120812T0200Z/
/O.CON.KPSR.EH.W.0011.000000T0000Z-120814T0300Z/
GREATER PHOENIX AREA-
INCLUDING THE CITIES OF...BUCKEYE...MESA...PHOENIX
447 PM MST SAT AUG 11 2012

...DUST STORM WARNING IN EFFECT UNTIL 7 PM MST THIS EVENING...
...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST
MONDAY...

THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ISSUED A DUST STORM
WARNING...WHICH IS IN EFFECT UNTIL 7 PM MST THIS EVENING. AN
EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST MONDAY. 

* AFFECTED AREA...PRIMARILY THE CENTRAL AND WEST PORTIONS OF THE
  GREATER PHOENIX METROPOLITAN AREA...INCLUDING
  AHWATUKEE...CHANDLER...AVONDALE...FIREBIRD LAKE...INTERSTATE 10

* TIMING...AREAS OF DENSE BLOWING DUST WILL OVERSPREAD THE AREA FROM
  SOUTH TO NORTH BETWEEN 5 PM AND 7 PM.

* WINDS...20 TO 30 MPH WITH GUSTS TO 40 MPH.

* VISIBILITY...AS LOW AS ONE QUARTER MILE OR LESS.

* IMPACTS...SUDDENLY REDUCED VISIBILITIES ON ROADWAYS WILL 
  CREATE DANGEROUS DRIVING CONDITIONS. MULTI-CAR PILEUPS ARE 
  MORE LIKELY DURING DUST STORM EVENTS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A DUST STORM WARNING IS ISSUED WHEN WINDS HAVE GENERATED LARGE
AREAS OF BLOWING DUST OR BLOWING SAND THAT HAVE SUBSTANTIALLY
REDUCED VISIBILITIES...TO 1/4 MILE OR LESS...RESULTING IN
HAZARDOUS DRIVING CONDITIONS IN SOME AREAS. BE READY FOR A SUDDEN
DROP IN VISIBILITY TO NEAR ZERO. USE EXTRA CAUTION AND SLOW DOWN
WHILE DRIVING...AS OBJECTS ON AND NEAR ROADWAYS WILL BE SEEN ONLY
AT CLOSE RANGE. IF YOU ENCOUNTER BLOWING DUST OR BLOWING SAND ON
THE ROADWAY OR SEE IT APPROACHING...PULL OFF THE ROAD AS FAR AS
POSSIBLE AND PUT YOUR VEHICLE IN PARK. TURN THE LIGHTS ALL THE
WAY OFF AND KEEP YOUR FOOT OFF THE BRAKE PEDAL.

REMEMBER...PULL ASIDE...STAY ALIVE.

&&

$$

AZZ027-028-120200-
/O.CON.KPSR.DS.W.0013.000000T0000Z-120812T0100Z/
/O.CON.KPSR.EH.W.0011.000000T0000Z-120814T0300Z/
SOUTHWEST MARICOPA COUNTY-
NORTHWEST AND NORTH CENTRAL PINAL COUNTY-
INCLUDING THE CITIES OF...GILA BEND...APACHE JUNCTION...
CASA GRANDE...FLORENCE
447 PM MST SAT AUG 11 2012

...DUST STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING...
...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST
MONDAY...

AN EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST
MONDAY. A DUST STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST
THIS EVENING. 

* AFFECTED AREA...SOUTHWEST MARICOPA COUNTY...AND WESTERN PINAL 
  COUNTY...INCLUDING GILA BEND...CASA GRANDE...MARICOPA...AND 
  INTERSTATES 10 AND 8 

* TIMING...AREAS OF DENSE BLOWING DUST WILL OVERSPREAD THE AREA 
  FROM SOUTH TO NORTH BETWEEN 415 PM AND 6 PM. 

* WINDS...20 TO 30 MPH WITH GUSTS TO 40 MPH.

* VISIBILITY...ONE QUARTER MILE OR LESS.

* IMPACTS...SUDDENLY REDUCED VISIBILITIES ON ROADWAYS WILL 
  CREATE DANGEROUS DRIVING CONDITIONS. MULTI-CAR PILEUPS ARE 
  MORE LIKELY DURING DUST STORM EVENTS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A DUST STORM WARNING IS ISSUED WHEN WINDS HAVE GENERATED LARGE
AREAS OF BLOWING DUST OR BLOWING SAND THAT HAVE SUBSTANTIALLY
REDUCED VISIBILITIES...TO 1/4 MILE OR LESS...RESULTING IN
HAZARDOUS DRIVING CONDITIONS IN SOME AREAS. BE READY FOR A SUDDEN
DROP IN VISIBILITY TO NEAR ZERO. USE EXTRA CAUTION AND SLOW DOWN
WHILE DRIVING...AS OBJECTS ON AND NEAR ROADWAYS WILL BE SEEN ONLY
AT CLOSE RANGE. IF YOU ENCOUNTER BLOWING DUST OR BLOWING SAND ON
THE ROADWAY OR SEE IT APPROACHING...PULL OFF THE ROAD AS FAR AS
POSSIBLE AND PUT YOUR VEHICLE IN PARK. TURN THE LIGHTS ALL THE
WAY OFF AND KEEP YOUR FOOT OFF THE BRAKE PEDAL.

REMEMBER...PULL ASIDE...STAY ALIVE.

&&

$$

AZZ020>022-025-026-CAZ031>033-120200-
/O.CON.KPSR.EH.W.0011.000000T0000Z-120814T0300Z/
LOWER COLORADO RIVER VALLEY AZ-WEST CENTRAL DESERTS-
NORTHWEST MARICOPA COUNTY-YUMA/MARTINEZ LAKE AND VICINITY-
SOUTHWEST DESERTS-LOWER COLORADO RIVER VALLEY CA-
RIVERSIDE COUNTY/EASTERN DESERTS-IMPERIAL COUNTY-
INCLUDING THE CITIES OF...EHRENBERG...PARKER...QUARTZSITE...
SALOME...BUCKEYE...NEW RIVER...WICKENBURG...FORTUNA FOOTHILLS...
YUMA...TACNA...WELLTON...BLYTHE...CHIRIACO SUMMIT...
DESERT CENTER...BRAWLEY...CALEXICO...EL CENTRO
447 PM MST SAT AUG 11 2012 /447 PM PDT SAT AUG 11 2012/

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST /8 PM
PDT/ MONDAY...

AN EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST /8 PM
PDT/ MONDAY. 

* AFFECTED AREA...SOUTH-CENTRAL ARIZONA...SOUTHWEST ARIZONA... 
  AND SOUTHEAST CALIFORNIA. THIS INCLUDES THE CITIES OF 
  PHOENIX...YUMA... BLYTHE...IMPERIAL AND EL CENTRO. 

* TEMPERATURE...AFTERNOON HIGH TEMPERATURES WILL GENERALLY RANGE 
  FROM 110 TO 113 DEGREES...WHILE OVERNIGHT LOW TEMPERATURES 
  WILL BRIEFLY FALL INTO THE UPPER 80S IN SOME AREAS. HIGH 
  TEMPERATURES OVER SOUTHWEST ARIZONA AND SOUTHEAST CALIFORNIA 
  MAY FALL A FEW DEGREES BELOW HEAT WARNING THRESHOLDS TODAY DUE 
  TO HIGHER HUMIDITY. HOWEVER HEAT INDEX VALUES WILL REMAIN 
  HIGH...AND DRIER AIR AND HOTTER TEMPERATURES ARE EXPECTED TO 
  RETURN SUNDAY...AS A RESULT THE WARNING WILL BE ALLOWED TO 
  CONTINUE TODAY FOR THE WESTERN DESERTS. 

* IMPACTS...THESE EXCESSIVELY HOT TEMPERATURES CAN BE STRESSFUL 
  TO HUMANS...AS WELL AS ANIMALS WITHOUT PROPER PRECAUTIONS. THE 
  WARM OVERNIGHT TEMPERATURES AND PROLONGED PERIODS OF 
  TEMPERATURES AT OR ABOVE 110 DEGREES DO NOT ALLOW SUFFICIENT 
  COOLING OF THE BODY...AND CAN LEAD TO HEAT STRESS OR HEAT 
  STROKE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINK PLENTY OF WATER. IF YOU WEAR A WIDE-BRIMMED
HAT...YOUR HEAD AND BODY WILL BE MUCH COOLER.

TO REDUCE RISK DURING OUTDOOR WORK...THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS
IN SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY
HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE
IS AN EMERGENCY...CALL 9 1 1.

&&

$$

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

797 
WWUS75 KPSR 120103
NPWPSR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PHOENIX AZ
603 PM MST SAT AUG 11 2012

AZZ027-028-120215-
/O.EXP.KPSR.DS.W.0013.000000T0000Z-120812T0100Z/
/O.CON.KPSR.EH.W.0011.000000T0000Z-120814T0300Z/
SOUTHWEST MARICOPA COUNTY-
NORTHWEST AND NORTH CENTRAL PINAL COUNTY-
INCLUDING THE CITIES OF...GILA BEND...APACHE JUNCTION...
CASA GRANDE...FLORENCE
603 PM MST SAT AUG 11 2012

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST
MONDAY...
...DUST STORM WARNING EXPIRED AT 6 PM MST THIS EVENING...

THE DUST STORM WARNING EXPIRED AT 6 PM MST THIS EVENING. SOME BLOWING
DUST WILL PERSIST THROUGH 7 PM...BUT VISIBILITY WILL BE GREATER THAN
1 MILE AT MOST LOCATIONS...AND SLOWLY IMPROVE WITH TIME.

AN EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST MONDAY.

* AFFECTED AREA...SOUTHWEST MARICOPA COUNTY...AND WESTERN PINAL
  COUNTY...INCLUDING GILA BEND...CASA GRANDE...MARICOPA. 

* IMPACTS...THESE EXCESSIVELY HOT TEMPERATURES CAN BE STRESSFUL 
  TO HUMANS...AS WELL AS ANIMALS WITHOUT PROPER PRECAUTIONS. THE 
  WARM OVERNIGHT TEMPERATURES AND PROLONGED PERIODS OF 
  TEMPERATURES AT OR ABOVE 110 DEGREES DO NOT ALLOW SUFFICIENT 
  COOLING OF THE BODY...AND CAN LEAD TO HEAT STRESS OR HEAT 
  STROKE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE.
WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO EARLY
MORNING OR EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT
EXHAUSTION AND HEAT STROKE. WEAR LIGHT WEIGHT AND LOOSE
FITTING CLOTHING WHEN POSSIBLE AND DRINK PLENTY OF WATER.
IF YOU WEAR A WIDE-BRIMMED HAT...YOUR HEAD AND BODY WILL BE
MUCH COOLER.

TO REDUCE RISK DURING OUTDOOR WORK...THE OCCUPATIONAL SAFETY
AND HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT
REST BREAKS IN SHADED OR AIR CONDITIONED ENVIRONMENTS.
ANYONE OVERCOME BY HEAT SHOULD BE MOVED TO A COOL AND
SHADED LOCATION. HEAT STROKE IS AN EMERGENCY...CALL 9 1 1.

&&

$$

AZZ023-120215-
/O.CON.KPSR.DS.W.0013.000000T0000Z-120812T0200Z/
/O.CON.KPSR.EH.W.0011.000000T0000Z-120814T0300Z/
GREATER PHOENIX AREA-
INCLUDING THE CITIES OF...BUCKEYE...MESA...PHOENIX
603 PM MST SAT AUG 11 2012

...DUST STORM WARNING REMAINS IN EFFECT UNTIL 7 PM MST THIS
EVENING...
...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST
MONDAY...

AN EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST
MONDAY. A DUST STORM WARNING REMAINS IN EFFECT UNTIL 7 PM MST
THIS EVENING. 

* AFFECTED AREA...PRIMARILY THE CENTRAL AND SOUTHERN PORTION OF THE
  GREATER THROUGH 630 PM...AND CENTRAL AND NORTHERN PORTIONS BETWEEN
  615 PM AND 7 PM. 

* TIMING...DENSE BLOWING DUST WILL OVERSPREAD THE AREA FROM SOUTH TO
  NORTH BETWEEN 6 PM AND 7 PM.

* WINDS...SOUTH AT 20 TO 30 MPH. 

* VISIBILITY...AS LOW AS ONE QUARTER MILE OR LESS.

* IMPACTS...SUDDENLY REDUCED VISIBILITIES ON ROADWAYS WILL 
  CREATE DANGEROUS DRIVING CONDITIONS. MULTI-CAR PILEUPS ARE 
  MORE LIKELY DURING DUST STORM EVENTS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A DUST STORM WARNING IS ISSUED WHEN WINDS HAVE GENERATED LARGE
AREAS OF BLOWING DUST OR BLOWING SAND THAT HAVE SUBSTANTIALLY
REDUCED VISIBILITIES...TO 1/4 MILE OR LESS...RESULTING IN
HAZARDOUS DRIVING CONDITIONS IN SOME AREAS. BE READY FOR A SUDDEN
DROP IN VISIBILITY TO NEAR ZERO. USE EXTRA CAUTION AND SLOW DOWN
WHILE DRIVING...AS OBJECTS ON AND NEAR ROADWAYS WILL BE SEEN ONLY
AT CLOSE RANGE. IF YOU ENCOUNTER BLOWING DUST OR BLOWING SAND ON
THE ROADWAY OR SEE IT APPROACHING...PULL OFF THE ROAD AS FAR AS
POSSIBLE AND PUT YOUR VEHICLE IN PARK. TURN THE LIGHTS ALL THE
WAY OFF AND KEEP YOUR FOOT OFF THE BRAKE PEDAL.

REMEMBER...PULL ASIDE...STAY ALIVE.

&&

$$

AZZ020>022-025-026-CAZ031>033-120215-
/O.CON.KPSR.EH.W.0011.000000T0000Z-120814T0300Z/
LOWER COLORADO RIVER VALLEY AZ-WEST CENTRAL DESERTS-
NORTHWEST MARICOPA COUNTY-YUMA/MARTINEZ LAKE AND VICINITY-
SOUTHWEST DESERTS-LOWER COLORADO RIVER VALLEY CA-
RIVERSIDE COUNTY/EASTERN DESERTS-IMPERIAL COUNTY-
INCLUDING THE CITIES OF...EHRENBERG...PARKER...QUARTZSITE...
SALOME...BUCKEYE...NEW RIVER...WICKENBURG...FORTUNA FOOTHILLS...
YUMA...TACNA...WELLTON...BLYTHE...CHIRIACO SUMMIT...
DESERT CENTER...BRAWLEY...CALEXICO...EL CENTRO
603 PM MST SAT AUG 11 2012 /603 PM PDT SAT AUG 11 2012/

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST /8 PM
PDT/ MONDAY...

AN EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST /8 PM
PDT/ MONDAY. 

* AFFECTED AREA...SOUTH-CENTRAL ARIZONA...SOUTHWEST ARIZONA... 
  AND SOUTHEAST CALIFORNIA. THIS INCLUDES THE CITIES OF 
  PHOENIX...YUMA... BLYTHE...IMPERIAL AND EL CENTRO. 

* TEMPERATURE...AFTERNOON HIGH TEMPERATURES WILL GENERALLY RANGE 
  FROM 110 TO 113 DEGREES...WHILE OVERNIGHT LOW TEMPERATURES 
  WILL BRIEFLY FALL INTO THE UPPER 80S IN SOME AREAS. HIGH 
  TEMPERATURES OVER SOUTHWEST ARIZONA AND SOUTHEAST CALIFORNIA 
  MAY FALL A FEW DEGREES BELOW HEAT WARNING THRESHOLDS TODAY DUE 
  TO HIGHER HUMIDITY. HOWEVER HEAT INDEX VALUES WILL REMAIN 
  HIGH...AND DRIER AIR AND HOTTER TEMPERATURES ARE EXPECTED TO 
  RETURN SUNDAY...AS A RESULT THE WARNING WILL BE ALLOWED TO 
  CONTINUE TODAY FOR THE WESTERN DESERTS. 

* IMPACTS...THESE EXCESSIVELY HOT TEMPERATURES CAN BE STRESSFUL 
  TO HUMANS...AS WELL AS ANIMALS WITHOUT PROPER PRECAUTIONS. THE 
  WARM OVERNIGHT TEMPERATURES AND PROLONGED PERIODS OF 
  TEMPERATURES AT OR ABOVE 110 DEGREES DO NOT ALLOW SUFFICIENT 
  COOLING OF THE BODY...AND CAN LEAD TO HEAT STRESS OR HEAT 
  STROKE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINK PLENTY OF WATER. IF YOU WEAR A WIDE-BRIMMED
HAT...YOUR HEAD AND BODY WILL BE MUCH COOLER.

TO REDUCE RISK DURING OUTDOOR WORK...THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS
IN SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY
HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE
IS AN EMERGENCY...CALL 9 1 1.

&&

$$

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

240 
WWUS75 KPSR 120106 CCA
NPWPSR

URGENT - WEATHER MESSAGE...CORRECTED
NATIONAL WEATHER SERVICE PHOENIX AZ
605 PM MST SAT AUG 11 2012

AZZ027-028-120230-
/O.EXP.KPSR.DS.W.0013.000000T0000Z-120812T0100Z/
/O.CON.KPSR.EH.W.0011.000000T0000Z-120814T0300Z/
SOUTHWEST MARICOPA COUNTY-
NORTHWEST AND NORTH CENTRAL PINAL COUNTY-
INCLUDING THE CITIES OF...GILA BEND...APACHE JUNCTION...
CASA GRANDE...FLORENCE
605 PM MST SAT AUG 11 2012

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST
MONDAY...
...DUST STORM WARNING EXPIRED AT 6 PM MST THIS EVENING...

THE DUST STORM WARNING EXPIRED AT 6 PM MST THIS EVENING. SOME BLOWING
DUST WILL PERSIST THROUGH 7 PM...BUT VISIBILITY WILL BE GREATER THAN
1 MILE AT MOST LOCATIONS...AND SLOWLY IMPROVE WITH TIME.

AN EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST MONDAY.

* AFFECTED AREA...SOUTHWEST MARICOPA COUNTY...AND WESTERN PINAL
  COUNTY...INCLUDING GILA BEND...CASA GRANDE...MARICOPA. 

* IMPACTS...THESE EXCESSIVELY HOT TEMPERATURES CAN BE STRESSFUL 
  TO HUMANS...AS WELL AS ANIMALS WITHOUT PROPER PRECAUTIONS. THE 
  WARM OVERNIGHT TEMPERATURES AND PROLONGED PERIODS OF 
  TEMPERATURES AT OR ABOVE 110 DEGREES DO NOT ALLOW SUFFICIENT 
  COOLING OF THE BODY...AND CAN LEAD TO HEAT STRESS OR HEAT 
  STROKE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE.
WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO EARLY
MORNING OR EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT
EXHAUSTION AND HEAT STROKE. WEAR LIGHT WEIGHT AND LOOSE
FITTING CLOTHING WHEN POSSIBLE AND DRINK PLENTY OF WATER.
IF YOU WEAR A WIDE-BRIMMED HAT...YOUR HEAD AND BODY WILL BE
MUCH COOLER.

TO REDUCE RISK DURING OUTDOOR WORK...THE OCCUPATIONAL SAFETY
AND HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT
REST BREAKS IN SHADED OR AIR CONDITIONED ENVIRONMENTS.
ANYONE OVERCOME BY HEAT SHOULD BE MOVED TO A COOL AND
SHADED LOCATION. HEAT STROKE IS AN EMERGENCY...CALL 9 1 1.

&&

$$

AZZ023-120230-
/O.COR.KPSR.DS.W.0013.000000T0000Z-120812T0200Z/
/O.COR.KPSR.EH.W.0011.000000T0000Z-120814T0300Z/
GREATER PHOENIX AREA-
INCLUDING THE CITIES OF...BUCKEYE...MESA...PHOENIX
605 PM MST SAT AUG 11 2012

...DUST STORM WARNING REMAINS IN EFFECT UNTIL 7 PM MST THIS
EVENING...
...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST
MONDAY...

AN EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST
MONDAY. A DUST STORM WARNING REMAINS IN EFFECT UNTIL 7 PM MST
THIS EVENING. 

* AFFECTED AREA...PRIMARILY THE CENTRAL AND SOUTHERN PORTION OF THE
  GREATER PHOENIX AREA THROUGH 630 PM...AND CENTRAL AND NORTHERN
  PORTIONS OF THE GREATER PHOENIX AREA BETWEEN 615 PM AND 7 PM.

* TIMING...DENSE BLOWING DUST WILL OVERSPREAD THE AREA FROM SOUTH TO
  NORTH BETWEEN 6 PM AND 7 PM.

* WINDS...SOUTH AT 20 TO 30 MPH. 

* VISIBILITY...AS LOW AS ONE QUARTER MILE OR LESS.

* IMPACTS...SUDDENLY REDUCED VISIBILITIES ON ROADWAYS WILL 
  CREATE DANGEROUS DRIVING CONDITIONS. MULTI-CAR PILEUPS ARE 
  MORE LIKELY DURING DUST STORM EVENTS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A DUST STORM WARNING IS ISSUED WHEN WINDS HAVE GENERATED LARGE
AREAS OF BLOWING DUST OR BLOWING SAND THAT HAVE SUBSTANTIALLY
REDUCED VISIBILITIES...TO 1/4 MILE OR LESS...RESULTING IN
HAZARDOUS DRIVING CONDITIONS IN SOME AREAS. BE READY FOR A SUDDEN
DROP IN VISIBILITY TO NEAR ZERO. USE EXTRA CAUTION AND SLOW DOWN
WHILE DRIVING...AS OBJECTS ON AND NEAR ROADWAYS WILL BE SEEN ONLY
AT CLOSE RANGE. IF YOU ENCOUNTER BLOWING DUST OR BLOWING SAND ON
THE ROADWAY OR SEE IT APPROACHING...PULL OFF THE ROAD AS FAR AS
POSSIBLE AND PUT YOUR VEHICLE IN PARK. TURN THE LIGHTS ALL THE
WAY OFF AND KEEP YOUR FOOT OFF THE BRAKE PEDAL.

REMEMBER...PULL ASIDE...STAY ALIVE.

&&

$$

AZZ020>022-025-026-CAZ031>033-120230-
/O.CON.KPSR.EH.W.0011.000000T0000Z-120814T0300Z/
LOWER COLORADO RIVER VALLEY AZ-WEST CENTRAL DESERTS-
NORTHWEST MARICOPA COUNTY-YUMA/MARTINEZ LAKE AND VICINITY-
SOUTHWEST DESERTS-LOWER COLORADO RIVER VALLEY CA-
RIVERSIDE COUNTY/EASTERN DESERTS-IMPERIAL COUNTY-
INCLUDING THE CITIES OF...EHRENBERG...PARKER...QUARTZSITE...
SALOME...BUCKEYE...NEW RIVER...WICKENBURG...FORTUNA FOOTHILLS...
YUMA...TACNA...WELLTON...BLYTHE...CHIRIACO SUMMIT...
DESERT CENTER...BRAWLEY...CALEXICO...EL CENTRO
605 PM MST SAT AUG 11 2012 /605 PM PDT SAT AUG 11 2012/

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST /8 PM
PDT/ MONDAY...

AN EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST /8 PM
PDT/ MONDAY. 

* AFFECTED AREA...SOUTH-CENTRAL ARIZONA...SOUTHWEST ARIZONA... 
  AND SOUTHEAST CALIFORNIA. THIS INCLUDES THE CITIES OF 
  PHOENIX...YUMA... BLYTHE...IMPERIAL AND EL CENTRO. 

* TEMPERATURE...AFTERNOON HIGH TEMPERATURES WILL GENERALLY RANGE 
  FROM 110 TO 113 DEGREES...WHILE OVERNIGHT LOW TEMPERATURES 
  WILL BRIEFLY FALL INTO THE UPPER 80S IN SOME AREAS. HIGH 
  TEMPERATURES OVER SOUTHWEST ARIZONA AND SOUTHEAST CALIFORNIA 
  MAY FALL A FEW DEGREES BELOW HEAT WARNING THRESHOLDS TODAY DUE 
  TO HIGHER HUMIDITY. HOWEVER HEAT INDEX VALUES WILL REMAIN 
  HIGH...AND DRIER AIR AND HOTTER TEMPERATURES ARE EXPECTED TO 
  RETURN SUNDAY...AS A RESULT THE WARNING WILL BE ALLOWED TO 
  CONTINUE TODAY FOR THE WESTERN DESERTS. 

* IMPACTS...THESE EXCESSIVELY HOT TEMPERATURES CAN BE STRESSFUL 
  TO HUMANS...AS WELL AS ANIMALS WITHOUT PROPER PRECAUTIONS. THE 
  WARM OVERNIGHT TEMPERATURES AND PROLONGED PERIODS OF 
  TEMPERATURES AT OR ABOVE 110 DEGREES DO NOT ALLOW SUFFICIENT 
  COOLING OF THE BODY...AND CAN LEAD TO HEAT STRESS OR HEAT 
  STROKE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINK PLENTY OF WATER. IF YOU WEAR A WIDE-BRIMMED
HAT...YOUR HEAD AND BODY WILL BE MUCH COOLER.

TO REDUCE RISK DURING OUTDOOR WORK...THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS
IN SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY
HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE
IS AN EMERGENCY...CALL 9 1 1.

&&

$$

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

425 
WWUS75 KPSR 120126
NPWPSR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PHOENIX AZ
626 PM MST SAT AUG 11 2012

AZZ023-120300-
/O.CON.KPSR.DS.W.0013.000000T0000Z-120812T0200Z/
/O.CON.KPSR.EH.W.0011.000000T0000Z-120814T0300Z/
GREATER PHOENIX AREA-
INCLUDING THE CITIES OF...BUCKEYE...MESA...PHOENIX
626 PM MST SAT AUG 11 2012

...DUST STORM WARNING REMAINS IN EFFECT UNTIL 7 PM MST THIS
EVENING...
...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST
MONDAY...

AN EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST
MONDAY. A DUST STORM WARNING REMAINS IN EFFECT UNTIL 7 PM MST
THIS EVENING. 

* AFFECTED AREA...PRIMARILY THE CENTRAL AND SOUTHERN PORTION OF 
  THE GREATER PHOENIX AREA THROUGH 630 PM...AND CENTRAL AND 
  NORTHERN PORTIONS OF THE GREATER PHOENIX AREA BETWEEN 615 PM 
  AND 7 PM. 

* TIMING...DENSE BLOWING DUST WILL OVERSPREAD THE AREA FROM 
  SOUTH TO NORTH BETWEEN 6 PM AND 7 PM. 

* WINDS...SOUTH AT 20 TO 30 MPH.

* VISIBILITY...AS LOW AS ONE QUARTER MILE OR LESS.

* IMPACTS...SUDDENLY REDUCED VISIBILITIES ON ROADWAYS WILL 
  CREATE DANGEROUS DRIVING CONDITIONS. MULTI-CAR PILEUPS ARE 
  MORE LIKELY DURING DUST STORM EVENTS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A DUST STORM WARNING IS ISSUED WHEN WINDS HAVE GENERATED LARGE
AREAS OF BLOWING DUST OR BLOWING SAND THAT HAVE SUBSTANTIALLY
REDUCED VISIBILITIES...TO 1/4 MILE OR LESS...RESULTING IN
HAZARDOUS DRIVING CONDITIONS IN SOME AREAS. BE READY FOR A SUDDEN
DROP IN VISIBILITY TO NEAR ZERO. USE EXTRA CAUTION AND SLOW DOWN
WHILE DRIVING...AS OBJECTS ON AND NEAR ROADWAYS WILL BE SEEN ONLY
AT CLOSE RANGE. IF YOU ENCOUNTER BLOWING DUST OR BLOWING SAND ON
THE ROADWAY OR SEE IT APPROACHING...PULL OFF THE ROAD AS FAR AS
POSSIBLE AND PUT YOUR VEHICLE IN PARK. TURN THE LIGHTS ALL THE
WAY OFF AND KEEP YOUR FOOT OFF THE BRAKE PEDAL.

REMEMBER...PULL ASIDE...STAY ALIVE.

&&

$$

AZZ022-120300-
/O.NEW.KPSR.DU.Y.0026.120812T0126Z-120812T0300Z/
/O.CON.KPSR.EH.W.0011.000000T0000Z-120814T0300Z/
NORTHWEST MARICOPA COUNTY-
INCLUDING THE CITIES OF...BUCKEYE...NEW RIVER...WICKENBURG
626 PM MST SAT AUG 11 2012

...BLOWING DUST ADVISORY IN EFFECT UNTIL 8 PM MST THIS EVENING...
...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST
MONDAY...

THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ISSUED A BLOWING DUST
ADVISORY...WHICH IS IN EFFECT UNTIL 8 PM MST THIS EVENING. AN
EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST MONDAY. 

* AFFECTED AREA...NORTHWEST MARICOPA COUNTY...INCLUDING INTERSTATE 10.

* TIMING...THROUGH 8 PM.

* WINDS...SOUTH 20 TO 30 MPH. 

* VISIBILITY...1 MILE OR LESS. 

* IMPACTS...SUDDENLY REDUCED VISIBILITIES ON ROADWAYS WILL CREATE
  DANGEROUS DRIVING CONDITIONS. MULTI-CAR PILEUPS ARE MORE LIKELY
  DURING BLOWING DUST EVENTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLOWING DUST ADVISORY IS ISSUED WHEN WINDS HAVE GENERATED LARGE
AREAS OF BLOWING DUST THAT WILL REDUCE VISIBILITIES...TO 1 MILES OR
LESS. HAZARDOUS DRIVING CONDITIONS MAY DEVELOP...ESPECIALLY IF
LOCALIZED VISIBILITY FALLS TO NEAR ONE QUARTER MILE. USE EXTRA
CAUTION AND SLOW DOWN WHILE DRIVING...AS OBJECTS ON AND NEAR ROADWAYS
WILL BE SEEN ONLY AT CLOSE RANGE. IF YOU ENCOUNTER BLOWING DUST ON
THE ROADWAY OR SEE IT APPROACHING...PULL OFF THE ROAD AS FAR AS
POSSIBLE AND PUT YOUR VEHICLE IN PARK. TURN THE LIGHTS ALL THE WAY
OFF AND KEEP YOUR FOOT OFF THE BRAKE PEDAL.

REMEMBER...PULL ASIDE...STAY ALIVE.

&&

$$

AZZ020-021-025>028-CAZ031>033-120300-
/O.CON.KPSR.EH.W.0011.000000T0000Z-120814T0300Z/
LOWER COLORADO RIVER VALLEY AZ-WEST CENTRAL DESERTS-
YUMA/MARTINEZ LAKE AND VICINITY-SOUTHWEST DESERTS-
SOUTHWEST MARICOPA COUNTY-
NORTHWEST AND NORTH CENTRAL PINAL COUNTY-
LOWER COLORADO RIVER VALLEY CA-RIVERSIDE COUNTY/EASTERN DESERTS-
IMPERIAL COUNTY-
INCLUDING THE CITIES OF...EHRENBERG...PARKER...QUARTZSITE...
SALOME...FORTUNA FOOTHILLS...YUMA...TACNA...WELLTON...
GILA BEND...APACHE JUNCTION...CASA GRANDE...FLORENCE...BLYTHE...
CHIRIACO SUMMIT...DESERT CENTER...BRAWLEY...CALEXICO...EL CENTRO
626 PM MST SAT AUG 11 2012 /626 PM PDT SAT AUG 11 2012/

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST /8 PM
PDT/ MONDAY...

AN EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST /8 PM
PDT/ MONDAY. 

AN EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST
MONDAY.

* AFFECTED AREA...SOUTHWEST MARICOPA COUNTY...AND WESTERN PINAL 
  COUNTY...INCLUDING GILA BEND...CASA GRANDE...MARICOPA. 

* IMPACTS...THESE EXCESSIVELY HOT TEMPERATURES CAN BE STRESSFUL 
  TO HUMANS...AS WELL AS ANIMALS WITHOUT PROPER PRECAUTIONS. THE 
  WARM OVERNIGHT TEMPERATURES AND PROLONGED PERIODS OF 
  TEMPERATURES AT OR ABOVE 110 DEGREES DO NOT ALLOW SUFFICIENT 
  COOLING OF THE BODY...AND CAN LEAD TO HEAT STRESS OR HEAT 
  STROKE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINK PLENTY OF WATER. IF YOU WEAR A WIDE-BRIMMED
HAT...YOUR HEAD AND BODY WILL BE MUCH COOLER.

TO REDUCE RISK DURING OUTDOOR WORK...THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS
IN SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY
HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE
IS AN EMERGENCY...CALL 9 1 1.

&&

$$

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

937 
WWUS75 KPSR 120158
NPWPSR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PHOENIX AZ
658 PM MST SAT AUG 11 2012

AZZ023-120300-
/O.EXP.KPSR.DS.W.0013.000000T0000Z-120812T0200Z/
/O.CON.KPSR.EH.W.0011.000000T0000Z-120814T0300Z/
GREATER PHOENIX AREA-
INCLUDING THE CITIES OF...BUCKEYE...MESA...PHOENIX
658 PM MST SAT AUG 11 2012

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST
MONDAY...
...DUST STORM WARNING WILL EXPIRE AT 7 PM MST THIS EVENING...

THE DUST STORM WARNING WILL EXPIRE AT 7 PM MST THIS EVENING. AN
EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST MONDAY. 

* AFFECTED AREA...THE GREATER PHOENIX METROPOLITAN AREA.

* TEMPERATURE...AFTERNOON HIGH TEMPERATURES WILL GENERALLY RANGE FROM
  110 TO 113 DEGREES...WHILE OVERNIGHT LOW TEMPERATURES WILL FALL
  ONLY INTO THE UPPER 80S TO LOWER 90S. 

* IMPACTS...THESE EXCESSIVELY HOT TEMPERATURES CAN BE STRESSFUL 
  TO HUMANS...AS WELL AS ANIMALS WITHOUT PROPER PRECAUTIONS. THE 
  WARM OVERNIGHT TEMPERATURES AND PROLONGED PERIODS OF 
  TEMPERATURES AT OR ABOVE 110 DEGREES DO NOT ALLOW SUFFICIENT 
  COOLING OF THE BODY...AND CAN LEAD TO HEAT STRESS OR HEAT 
  STROKE.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE.
WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO EARLY
MORNING OR EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT
EXHAUSTION AND HEAT STROKE. WEAR LIGHT WEIGHT AND LOOSE
FITTING CLOTHING WHEN POSSIBLE AND DRINK PLENTY OF WATER.
IF YOU WEAR A WIDE-BRIMMED HAT...YOUR HEAD AND BODY WILL BE
MUCH COOLER.

TO REDUCE RISK DURING OUTDOOR WORK...THE OCCUPATIONAL SAFETY
AND HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT
REST BREAKS IN SHADED OR AIR CONDITIONED ENVIRONMENTS.
ANYONE OVERCOME BY HEAT SHOULD BE MOVED TO A COOL AND
SHADED LOCATION. HEAT STROKE IS AN EMERGENCY...CALL 9 1 1.

&&

$$

AZZ022-120300-
/O.CON.KPSR.EH.W.0011.000000T0000Z-120814T0300Z/
/O.CON.KPSR.DU.Y.0026.000000T0000Z-120812T0300Z/
NORTHWEST MARICOPA COUNTY-
INCLUDING THE CITIES OF...BUCKEYE...NEW RIVER...WICKENBURG
658 PM MST SAT AUG 11 2012

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST
MONDAY...
...BLOWING DUST ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

AN EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST
MONDAY. A BLOWING DUST ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST
THIS EVENING. 

* AFFECTED AREA...NORTHWEST MARICOPA COUNTY...INCLUDING 
  INTERSTATE 10.

* TIMING...THROUGH 8 PM.

* WINDS...SOUTH 20 TO 30 MPH.

* VISIBILITY...1 MILE OR LESS.

* IMPACTS...SUDDENLY REDUCED VISIBILITIES ON ROADWAYS WILL 
  CREATE DANGEROUS DRIVING CONDITIONS. MULTI-CAR PILEUPS ARE 
  MORE LIKELY DURING BLOWING DUST EVENTS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLOWING DUST ADVISORY IS ISSUED WHEN WINDS HAVE GENERATED LARGE
AREAS OF BLOWING DUST THAT WILL REDUCE VISIBILITIES...TO 1 MILES
OR LESS. HAZARDOUS DRIVING CONDITIONS MAY DEVELOP...ESPECIALLY IF
LOCALIZED VISIBILITY FALLS TO NEAR ONE QUARTER MILE. USE EXTRA
CAUTION AND SLOW DOWN WHILE DRIVING...AS OBJECTS ON AND NEAR
ROADWAYS WILL BE SEEN ONLY AT CLOSE RANGE. IF YOU ENCOUNTER
BLOWING DUST ON THE ROADWAY OR SEE IT APPROACHING...PULL OFF THE
ROAD AS FAR AS POSSIBLE AND PUT YOUR VEHICLE IN PARK. TURN THE
LIGHTS ALL THE WAY OFF AND KEEP YOUR FOOT OFF THE BRAKE PEDAL.

REMEMBER...PULL ASIDE...STAY ALIVE.

&&

$$

AZZ020-021-025>028-CAZ031>033-120300-
/O.CON.KPSR.EH.W.0011.000000T0000Z-120814T0300Z/
LOWER COLORADO RIVER VALLEY AZ-WEST CENTRAL DESERTS-
YUMA/MARTINEZ LAKE AND VICINITY-SOUTHWEST DESERTS-
SOUTHWEST MARICOPA COUNTY-
NORTHWEST AND NORTH CENTRAL PINAL COUNTY-
LOWER COLORADO RIVER VALLEY CA-RIVERSIDE COUNTY/EASTERN DESERTS-
IMPERIAL COUNTY-
INCLUDING THE CITIES OF...EHRENBERG...PARKER...QUARTZSITE...
SALOME...FORTUNA FOOTHILLS...YUMA...TACNA...WELLTON...
GILA BEND...APACHE JUNCTION...CASA GRANDE...FLORENCE...BLYTHE...
CHIRIACO SUMMIT...DESERT CENTER...BRAWLEY...CALEXICO...EL CENTRO
658 PM MST SAT AUG 11 2012 /658 PM PDT SAT AUG 11 2012/

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST /8 PM
PDT/ MONDAY...

AN EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST /8 PM
PDT/ MONDAY. 

* AFFECTED AREA...THE LOWER DESERT OF SOUTHEAST CALIFORNIA AND
  SOUTHWEST ARIZONA...INCLUDING IMPERIAL...BLYTHE...YUMA...GILA BEND
  AND CASA GRANDE.

* TEMPERATURE...AFTERNOON HIGH TEMPERATURES WILL GENERALLY RANGE FROM
  110 TO 114 DEGREES...WHILE OVERNIGHT LOW TEMPERATURES WILL ONLY
  FALL TO THE MID 80S TO AROUND 90.

* IMPACTS...THESE EXCESSIVELY HOT TEMPERATURES CAN BE STRESSFUL 
  TO HUMANS...AS WELL AS ANIMALS WITHOUT PROPER PRECAUTIONS. THE 
  WARM OVERNIGHT TEMPERATURES AND PROLONGED PERIODS OF 
  TEMPERATURES AT OR ABOVE 110 DEGREES DO NOT ALLOW SUFFICIENT 
  COOLING OF THE BODY...AND CAN LEAD TO HEAT STRESS OR HEAT 
  STROKE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINK PLENTY OF WATER. IF YOU WEAR A WIDE-BRIMMED
HAT...YOUR HEAD AND BODY WILL BE MUCH COOLER.

TO REDUCE RISK DURING OUTDOOR WORK...THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS
IN SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY
HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE
IS AN EMERGENCY...CALL 9 1 1.

&&

$$

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

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PHOENIX AZ
320 PM MST SAT AUG 11 2012

.UPDATE...TO AVIATION DISCUSSION...

&&

.SYNOPSIS...
STRONG HIGH PRESSURE WILL CONTINUE OVER THE DESERT SOUTHWEST THROUGH
THE END OF THE WEEKEND AND INTO EARLY NEXT WEEK...RESULTING IN WELL
ABOVE NORMAL TEMPERATURES AND PERIODS OF EXCESSIVE HEAT. MONSOON
MOISTURE WILL SLOWLY SPREAD BACK INTO THE REGION...RESULTING IN A
CHANCE OF AFTERNOON THUNDERSTORM ACTIVITY OVER SOUTHEAST CALIFORNIA
AND SOUTHWEST ARIZONA THROUGH SUNDAY. THE CHANCE OF AFTERNOON AND
EVENING THUNDERSTORM ACTIVITY NEXT WEEK WILL BE CONFINED TO SOUTH
CENTRAL ARIZONA.

&&

.DISCUSSION...
TONIGHT...
A FAIRLY SIGNIFICANT INVERTED TROF CONTINUED TO MOVE NORTH INTO
SOUTHWEST AZ FROM MEXICO. CONVECTION THIS AFTERNOON HAS BEEN
VIGOROUS...AND SO FAR CONFINED TO AREAS OF DEFORMATION IN SOUTHERN
CA AND SOUTHEAST AZ.  SOUTHEAST CA AND FAR SOUTHWEST AZ SO FAR HAS
BEEN DEVOID OF CONVECTION...HOWEVER THAT MIGHT CHANGE BY EVENING.
MODELS FORECAST THE INVERTED TROF TO TAKE ON A DIFFERENT ORIENTATION
BY EVENING...BECOMING NEGATIVE TILT IN SOUTHWEST AZ. THEREFORE AS WE
PROGRESS INTO THE LATE AFTERNOON HOURS WE EXPECT CONVECTION TO
INCREASE IN SOUTHWEST AZ AND SOUTHEAST CA. THE CHANCE OF SHOWERS AND
THUNDERSTORMS WILL CONTINUE ACROSS MOST OF THE FORECAST AREA INTO
THE LATE EVENING HOURS.

SUNDAY AND MONDAY...
THE INVERTED TROF IF FORECAST TO WASH OUT AND BECOMES VERY WEAK...
BUT NEARLY STATIONARY OVER SOUTHWEST AZ. FLOW ALOFT AT AND ABOVE 300
MB BECOMES VERY LIGHT...IN A LARGE COL AREA. SINCE THERE IS NO
ORGANIZATION TO THE FLOW PATTERN ALOFT...CONVECTION WILL BE
DIURNALLY DRIVEN BY HEATING. THEREFORE A SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS ARE FORECAST JUST ABOUT EVERYWHERE OVER THE
FORECAST AREA...BUT DECLINING A BIT IN SOUTHEAST CA ON MONDAY.

THE EXCESSIVE HEAT WARNING FOR THE LOWER DESERTS WILL STILL CONTINUE
AS ATMOSPHERIC THICKNESS VALUES AND LOWER ATMOSPHERIC TEMPERATURES
REMAIN STEADY THROUGH MONDAY.  ALTHOUGH THE FORECAST AFTERNOON
TEMPERATURES IN SOUTHEAST CA AND SOUTHWEST AZ ARE A FEW DEGREES
UNDER WARNING THRESHOLDS...COMBINED HUMIDITY WILL TAKE TEMPERATURES
ABOVE OUR HEAT INDEX WARNING CRITERIA.

TUESDAY THROUGH FRIDAY...
A CHANCE OF AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS WILL
MAINLY BE CONFINED TO SOUTH CENTRAL AZ THIS PERIOD. HOWEVER ANOTHER
INVERTED TROF FROM MEXICO ON WED OR THUR MAY ELEVATE THE CHANCE OF
THUNDERSTORMS ONE OF THESE DAYS VICINITY PHOENIX AND CASA GRANDE.

&&

.AVIATION...
SOUTH-CENTRAL ARIZONA INCLUDING KPHX...KIWA...AND KSDL.

SCT TO BKN CIGS WILL PERSIST ACROSS THE PHOENIX METRO AREA WITH
GENERALLY W-SW WINDS. LINGERING LOW LEVEL MOISTURE AND
INSTABILITY ACROSS THE SOUTHERN AZ HAS SUPPORTED SCT THUNDERSTORMS
THAT HAVE ALREADY SENT OUTFLOWS UP THROUGH PINAL COUNTY THIS
AFTERNOON. STORMS MAY CONTINUE TO DEVELOP THIS AFTERNOON...WITH
GUSTY OUTFLOW WINDS AND POTENTIALLY BLOWING DUST TO IMPACT THE
TERMINALS. STORM DEVELOPMENT INTO THE PHOENIX AREA MAY BE POSSIBLE
LATER THIS EVENING...AROUND OR AFTER 12/0200Z. UNTIL DEVELOPMENT
PERSIST CLOSER TO THE METRO AREA...DID NOT INCLUDE MENTION OF
THUNDER OR CB IN THE TAFS.

SOUTHEAST CALIFORNIA/SOUTHWEST ARIZONA INCLUDING KIPL AND KBLH...
GENERALLY LIGHT WINDS WITH MOSTLY CLEAR SKIES THROUGH THE AFTERNOON.
ISO STORM DEVELOPMENT DURING THE LATE AFTN MAY IMPACT THE
TERMINALS...ESPECIALLY WITH GUSTY OUTFLOW WINDS AND PERIODS OF HEAVY
RAINFALL. AT THIS TIME...UNTIL DEVELOPMENT FILLS IN ACROSS THE BAJA
SPINE AND WESTERN ARIZONA...ONLY INCLUDED VCTS MENTION FOR KBLH.

AVIATION DISCUSSION NOT UPDATED FOR AMENDED TAFS.

&&

.FIRE WEATHER...
TUESDAY THROUGH SATURDAY...
STRONG HIGH PRESSURE ON TUESDAY IS EXPECTED TO SLOWLY WEAKEN AND
MOVE EASTWARD THROUGH THE REST OF NEXT WEEK. AS A
RESULT...THUNDERSTORM ACTIVITY THAT WILL BE MAINLY CONFINED TO THE
HIGHER TERRAIN EAST OF PHOENIX ON TUESDAY IS EXPECTED TO SPREAD
WESTWARD INTO THE PHOENIX AREA...THEN INTO SOUTHWEST ARIZONA AND
SOUTHEAST CALIFORNIA THROUGH THE REMAINDER OF THE WEEK. WELL ABOVE
NORMAL TEMPERATURES ON TUESDAY ARE EXPECTED TO SLOWLY COOL TO
NEAR...OR EVEN BELOW NORMAL FROM WEDNESDAY THROUGH SATURDAY. WINDS
ARE EXPECTED TO REMAIN MOSTLY LIGHT...EXCEPT NEAR THUNDERSTORMS GOOD
OVERNIGHT RELATIVE HUMIDITY RECOVERIES CAN ALSO BE EXPECTED THROUGH
THE PERIOD.

&&

.PSR WATCHES/WARNINGS/ADVISORIES...

AZ...EXCESSIVE HEAT WARNING UNTIL 8 PM MST MONDAY
     AZZ020>023...025>028.

CA...EXCESSIVE HEAT WARNING UNTIL 8 PM PDT MONDAY
     CAZ031>033.

&&

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

DISCUSSION...VASQUEZ
AVIATION...NOLTE
FIRE WEATHER...DEWEY/PERCHA

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PHOENIX AZ
608 AM MST SAT AUG 11 2012

AZZ024-121300-
SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS-
608 AM MST SAT AUG 11 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST-CENTRAL ARIZONA.

.DAY ONE...TODAY AND TONIGHT.

NO WEATHER HAZARDS ARE EXPECTED.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

NO WEATHER HAZARDS ARE EXPECTED ON SUNDAY. BEGINNING ON
MONDAY...THERE WILL BE A GRADUALLY INCREASING CHANCE OF AFTERNOON
SHOWERS AND THUNDERSTORMS THROUGH THE DAY ON FRIDAY. THE PRIMARY
WEATHER HAZARDS WILL BE GUSTY WINDS IN EXCESS OF 40 MPH...LOCALLY
HEAVY RAINFALL AND DEADLY CLOUD TO GROUND LIGHTNING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED.

AZZ022-023-027-028-121300-
NORTHWEST MARICOPA COUNTY-GREATER PHOENIX AREA-
SOUTHWEST MARICOPA COUNTY-NORTHWEST AND NORTH CENTRAL PINAL COUNTY-
608 AM MST SAT AUG 11 2012

...EXCESSIVE HEAT WARNING IN EFFECT UNTIL 8 PM MST MONDAY...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH-CENTRAL ARIZONA.

.DAY ONE...TODAY AND TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   EXCESSIVE HEAT WARNING.

AN EXCESSIVE HEAT WARNING REMAINS IN EFFECT THROUGH TONIGHT FOR THE
SOUTH CENTRAL DESERTS INCLUDING THE GREATER PHOENIX AREA. HIGH
TEMPERATURES WILL BE IN EXCESS OF 110 DEGREES AND OVERNIGHT LOWS WILL
RANGE FROM MID 80S TO AROUND 90 OVER THE WARMER DESERTS.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   EXCESSIVE HEAT WARNING.

AN EXCESSIVE HEAT WARNING WILL PERSIST THROUGH MONDAY EVENING FOR THE
SOUTH CENTRAL DESERTS INCLUDING THE GREATER PHOENIX AREA. OVERNIGHT
LOWS RANGING FROM THE MID 80S TO LOW 90S MEAN THAT THERE IS LITTLE
RELIEF FROM THE HEAT DURING THE NIGHTTIME HOURS. IT IS POSSIBLE THAT
THE WARNING WILL NEED TO BE EXTENDED THROUGH THE DAY ON TUESDAY.

INCREASING CLOUDS AND MOISTURE BY MID WEEK WILL LEAD TO A COOLING
TREND AND WILL ALSO LEAD TO A SLIGHT CHANCE FOR AFTERNOON AND EVENING
THUNDERSTORMS ACROSS THE SOUTH CENTRAL DESERTS. THE CHANCES WILL
SLOWLY INCREASE...AND BY FRIDAY THERE WILL BE A CHANCE FOR AFTERNOON
AND EVENING THUNDERSTORMS OVER THE DESERTS. PRIMARY WEATHER HAZARDS
WITH THE THUNDERSTORMS INCLUDE GUSTY WINDS IN EXCESS OF 45
MPH...BRIEF HEAVY RAIN...PATCHY BLOWING DUST AND DEADLY LIGHTNING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED.

AZZ020-021-025-026-CAZ031>033-121300-
LOWER COLORADO RIVER VALLEY AZ-WEST CENTRAL DESERTS-
YUMA/MARTINEZ LAKE AND VICINITY-SOUTHWEST DESERTS-
LOWER COLORADO RIVER VALLEY CA-RIVERSIDE COUNTY/EASTERN DESERTS-
IMPERIAL COUNTY-
608 AM MST SAT AUG 11 2012 /608 AM PDT SAT AUG 11 2012/

...EXCESSIVE HEAT WARNING IN EFFECT UNTIL 8 PM MST /8 PM PDT/
MONDAY...

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

.DAY ONE...TODAY AND TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   EXCESSIVE HEAT WARNING.

AN EXCESSIVE HEAT WARNING CONTINUES TODAY AND TONIGHT FOR THE
SOUTHWEST ARIZONA AND SOUTHEAST CALIFORNIA DESERTS. IT IS POSSIBLE
THAT THE SHOWERS AND INCREASED HUMIDITY WILL LEAD TO COOLER HIGH
TEMPERATURES TODAY THAT FALL BELOW HEAT WARNING THRESHOLDS.
HOWEVER...HEAT INDEX VALUES WILL REMAIN HIGH AND IT IS EXPECTED THAT
DRIER AND HOTTER WEATHER WILL RETURN SUNDAY. AS SUCH THE WARNING WILL
BE ALLOWED TO CONTINUE TODAY AND TONIGHT.

SCATTERED SHOWERS AND THUNDERSTORMS ARE ALSO EXPECTED. PRIMARY
WEATHER HAZARDS INCLUDE GUSTY WINDS IN EXCESS OF 45 MPH...LOCALLY
HEAVY RAIN...PATCHY BLOWING DUST AND SAND AND DEADLY LIGHTNING.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   EXCESSIVE HEAT WARNING.

AN EXCESSIVE HEAT WARNING WILL CONTINUE THROUGH MONDAY EVENING FOR
THE DESERTS OF SOUTHWEST ARIZONA AND SOUTHEAST CALIFORNIA. OVERNIGHT
LOWS RANGING FROM MID 80S TO NEAR 90 OVER THE WARMER DESERTS MEAN
THAT THERE IS LITTLE RELIEF FROM THE OPPRESSIVE DAYTIME HEAT. LITTLE
CHANGE IN THE WEATHER PATTERN TUESDAY MEAN THAT THE WARNING MAY NEED
TO BE EXTENDED THROUGH THE EVENING HOURS ON TUESDAY.

THERE WILL BE A SLIGHT CHANCE FOR AFTERNOON AND EVENING THUNDERSTORMS
ON SUNDAY...THEN THERE WILL BE A BREAK AS DRIER CONDITIONS MOVE IN.
MONSOON MOISTURE WILL RETURN BY WEDNESDAY...AND AS SUCH A SLIGHT
CHANCE FOR AFTERNOON AND EVENING THUNDERSTORMS WILL RETURN AND
CONTINUE EACH DAY THROUGH FRIDAY. THE PRIMARY WEATHER HAZARDS
ASSOCIATED WITH THE THUNDERSTORMS INCLUDE GUSTY WINDS IN EXCESS OF 45
MPH...LOCALLY HEAVY RAINFALL...SHARPLY REDUCED VISIBILITY IN BLOWING
DUST AND SAND...AND DEADLY LIGHTNING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED.

CAZ030-121300-
JOSHUA TREE NATIONAL PARK-
608 AM PDT SAT AUG 11 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST CALIFORNIA.

.DAY ONE...TODAY AND TONIGHT.

THERE IS A CHANCE FOR MAINLY AFTERNOON AND EVENING THUNDERSTORMS. THE
PRIMARY WEATHER HAZARDS INCLUDE GUSTY WINDS IN EXCESS OF 40
MPH...BRIEF HEAVY RAIN...PATCHY DENSE BLOWING DUST ACROSS THE LOWER
ELEVATIONS AND DEADLY LIGHTNING.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED.

NATIONAL WEATHER SERVICE PHOENIX IS ON THE INTERNET AT

WEATHER.GOV/PHOENIX