Non-Precipitation Warnings / Watches / Advisories
Issued by NWS Phoenix, AZ

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091
WWUS75 KPSR 191749
NPWPSR

URGENT - WEATHER MESSAGE
National Weather Service Phoenix AZ
1049 AM MST Wed Aug 19 2026

AZZ538-539-553-554-559-201200-
/O.CON.KPSR.XH.W.0008.000000T0000Z-260824T0300Z/
/O.CON.KPSR.DU.Y.0003.260820T0000Z-260820T0500Z/
Tonopah Desert-Gila Bend-Northwest Pinal County-West Pinal County-
Sonoran Desert Natl Monument-
Including the cities of Wintersburg, Gila Bend, Hassayampa, Kaka,
Florence, Cactus Forest, Casa Grande, Sentinel, Coolidge, Tonopah,
and Arlington
1049 AM MST Wed Aug 19 2026

...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST SUNDAY...
...BLOWING DUST ADVISORY REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON
TO 10 PM MST THIS EVENING...

* WHAT...For the Extreme Heat Warning, dangerously hot conditions.
  Afternoon temperatures 106 to 114. Major Heat Risk. Overexposure
  can cause heat cramps and heat exhaustion to develop and, without
  intervention, can lead to heat stroke. For the Blowing Dust
  Advisory, visibility between one-quarter and one mile in blowing
  dust expected.

* WHERE...Gila Bend, Northwest Pinal County, Sonoran Desert Natl
  Monument, Tonopah Desert, and West Pinal County.

* WHEN...For the Extreme Heat Warning, until 8 PM MST Sunday. For the
  Blowing Dust Advisory, from 5 PM this afternoon to 10 PM MST this
  evening.

* IMPACTS...Hazardous driving conditions due to reduced visibility.
  Heat related illnesses increase significantly during extreme heat
  events.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Persons with respiratory problems should make preparations to stay
indoors until the storm passes. Be ready for a sudden drop in
visibility to near zero. 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 foot off the brake pedal. Remember, `Pull Aside, Stay
Alive`.

An Extreme Heat Warning means that a period of very hot temperatures,
even by local standards, will occur. Actions should be taken to
lessen the impact of the extreme heat.

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 lightweight and loose-fitting clothing when possible and
drink plenty of water.

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.

Public cooling shelters are available in some areas. Consult county
officials for more details.

&&

$$

AZZ540-550-551-201200-
/O.CON.KPSR.XH.W.0008.000000T0000Z-260824T0300Z/
/O.CON.KPSR.DU.Y.0003.260820T0000Z-260820T0500Z/
Buckeye/Avondale-South Mountain/Ahwatukee-Southeast Valley/Queen
Creek-
Including the cities of Avondale, Liberty, Goodyear, Sun Lakes,
Cashion, and Queen Creek
1049 AM MST Wed Aug 19 2026

...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST SUNDAY...
...BLOWING DUST ADVISORY REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON
TO 10 PM MST THIS EVENING...

* WHAT...For the Extreme Heat Warning, dangerously hot conditions.
  Afternoon temperatures 109 to 112. Major Heat Risk. Overexposure
  can cause heat cramps and heat exhaustion to develop and, without
  intervention, can lead to heat stroke. For the Blowing Dust
  Advisory, visibility between one-quarter and one mile in blowing
  dust expected.

* WHERE...Buckeye/Avondale, South Mountain/Ahwatukee, and Southeast
  Valley/Queen Creek.

* WHEN...For the Extreme Heat Warning, until 8 PM MST Sunday. For the
  Blowing Dust Advisory, from 5 PM this afternoon to 10 PM MST this
  evening.

* IMPACTS...Hazardous driving conditions due to reduced visibility.
  Heat related illnesses increase significantly during extreme heat
  events.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Persons with respiratory problems should make preparations to stay
indoors until the storm passes. Be ready for a sudden drop in
visibility to near zero. 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 foot off the brake pedal. Remember, `Pull Aside, Stay
Alive`.

An Extreme Heat Warning means that a period of very hot temperatures,
even by local standards, will occur. Actions should be taken to
lessen the impact of the extreme heat.

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 lightweight and loose-fitting clothing when possible and
drink plenty of water.

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.

Public cooling shelters are available in some areas. Consult county
officials for more details.

&&

$$

AZZ530>533-535-536-CAZ562-565>567-569-570-201200-
/O.CON.KPSR.XH.W.0008.000000T0000Z-260824T0300Z/
Parker Valley-Kofa-Yuma-Central La Paz-Southeast Yuma County-Gila
River Valley-Imperial County Southwest-Imperial County Southeast-
Imperial County West-Imperial Valley-Palo Verde Valley-Chuckwalla
Valley-
Including the cities of Blythe, Coyote Wells, Coolidge Springs,
Brenda, Brawley, Winona, Mountain Spring, Plaster City, Ehrenberg,
Yuma, Parker, Harcuvar, Palo Verde, Vicksburg Junction, Fortuna
Foothills, Palm Canyon, Vicksburg, Alamorio, Calexico, Midland,
Ocotillo, El Centro, Quartzsite, Ripley, Salome, Salton City,
Winterhaven, Martinez Lake, and Ligurta
1049 AM MST Wed Aug 19 2026 /1049 AM PDT Wed Aug 19 2026/

...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST /8 PM PDT/
SUNDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures 106 to
  114. Major Heat Risk. Overexposure can cause heat cramps and heat
  exhaustion to develop and, without intervention, can lead to heat
  stroke.

* WHERE...Portions of southwest Arizona and southeast California.

* WHEN...Until 8 PM MST /8 PM PDT/ Sunday.

* IMPACTS...Heat related illnesses increase significantly during
  extreme heat events.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

An Extreme Heat Warning means that a period of very hot temperatures,
even by local standards, will occur. Actions should be taken to
lessen the impact of the extreme heat.

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 lightweight and loose-fitting clothing when possible and
drink plenty of water.

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.

Public cooling shelters are available in some areas. Consult county
officials for more details.

&&

$$

AZZ534-541-549-555-201200-
/O.CON.KPSR.XH.W.0008.000000T0000Z-260824T0300Z/
Aguila Valley-Cave Creek/New River-Fountain Hills/East Mesa-
Apache Junction/Gold Canyon-
Including the cities of Fountain Hills, Apache Junction, Scottsdale,
Aguila, Gladden, and Wickenburg
1049 AM MST Wed Aug 19 2026

...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST SUNDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures 103 to
  111. Major Heat Risk. Overexposure can cause heat cramps and heat
  exhaustion to develop and, without intervention, can lead to heat
  stroke.

* WHERE...Aguila Valley, Apache Junction/Gold Canyon, Cave Creek/New
  River, and Fountain Hills/East Mesa.

* WHEN...Until 8 PM MST Sunday.

* IMPACTS...Heat related illnesses increase significantly during
  extreme heat events.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

An Extreme Heat Warning means that a period of very hot temperatures,
even by local standards, will occur. Actions should be taken to
lessen the impact of the extreme heat.

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 lightweight and loose-fitting clothing when possible and
drink plenty of water.

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.

Public cooling shelters are available in some areas. Consult county
officials for more details.

&&

$$

AZZ537-542>544-546-548-201200-
/O.CON.KPSR.XH.W.0008.000000T0000Z-260824T0300Z/
Northwest Valley-Deer Valley-Central Phoenix-North
Phoenix/Glendale-Scottsdale/Paradise Valley-East Valley-
Including the cities of Phoenix, Chandler, Beardsley, Circle City,
Sun City West, Tempe, Wittmann, Mesa, Gilbert, Peoria, Paradise
Valley, and Surprise
1049 AM MST Wed Aug 19 2026

...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST SUNDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures 108 to
  111. Major Heat Risk. Overexposure can cause heat cramps and heat
  exhaustion to develop and, without intervention, can lead to heat
  stroke.

* WHERE...Central Phoenix, Deer Valley, East Valley, North
  Phoenix/Glendale, Northwest Valley, and Scottsdale/Paradise Valley.

* WHEN...Until 8 PM MST Sunday.

* IMPACTS...Heat related illnesses increase significantly during
  extreme heat events.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

An Extreme Heat Warning means that a period of very hot temperatures,
even by local standards, will occur. Actions should be taken to
lessen the impact of the extreme heat.

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 lightweight and loose-fitting clothing when possible and
drink plenty of water.

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.

Public cooling shelters are available in some areas. Consult county
officials for more details.

&&

$$

AZZ560-201200-
/O.CON.KPSR.XH.W.0008.000000T0000Z-260824T0300Z/
San Carlos-
Including the cities of San Carlos and Peridot
1049 AM MST Wed Aug 19 2026

...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST SUNDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures 102 to
  109. Extreme Heat Risk. Increase in heat related illnesses,
  including heat cramps, heat exhaustion, and heat stroke. Heat
  stroke can lead to death.

* WHERE...San Carlos.

* WHEN...Until 8 PM MST Sunday.

* IMPACTS...Heat related illnesses increase significantly during
  extreme heat events.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

An Extreme Heat Warning means that a period of very hot temperatures,
even by local standards, will occur. Actions should be taken to
lessen the impact of the extreme heat.

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 lightweight and loose-fitting clothing when possible and
drink plenty of water.

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.

Public cooling shelters are available in some areas. Consult county
officials for more details.

&&

$$

AR