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

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045
WWUS75 KPSR 090704
NPWPSR

URGENT - WEATHER MESSAGE
National Weather Service Phoenix AZ
1204 AM MST Sun Aug 9 2026

AZZ530>533-535-536-CAZ569-570-100300-
/O.CON.KPSR.XH.W.0007.000000T0000Z-260810T0300Z/
Parker Valley-Kofa-Yuma-Central La Paz-Southeast Yuma County-Gila
River Valley-Palo Verde Valley-Chuckwalla Valley-
Including the cities of Quartzsite, Yuma, Vicksburg Junction, Parker,
Salome, Ligurta, Palo Verde, Midland, Blythe, Ehrenberg, Palm Canyon,
Vicksburg, Brenda, Martinez Lake, Ripley, Harcuvar, and Fortuna
Foothills
1204 AM MST Sun Aug 9 2026 /1204 AM PDT Sun Aug 9 2026/

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

* WHAT...Dangerously hot conditions. Afternoon temperatures 107 to
  113. Major Heat Risk.

* WHERE...In Arizona, Central La Paz, Gila River Valley, Kofa, Parker
  Valley, Southeast Yuma County, and Yuma. In California, Chuckwalla
  Valley and Palo Verde Valley.

* WHEN...Until 8 PM MST /8 PM PDT/ this evening.

* IMPACTS...Heat related illnesses increase significantly during
  extreme heat events. Overexposure can cause heat cramps and heat
  exhaustion to develop and, without intervention, can lead to heat
  stroke.

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.

&&

$$

AZZ534-538-539-541-549-553>555-559-100300-
/O.CON.KPSR.XH.W.0007.000000T0000Z-260810T0300Z/
Aguila Valley-Tonopah Desert-Gila Bend-Cave Creek/New River-
Fountain Hills/East Mesa-Northwest Pinal County-West Pinal County-
Apache Junction/Gold Canyon-Sonoran Desert Natl Monument-
Including the cities of Scottsdale, Hassayampa, Fountain Hills,
Florence, Kaka, Wickenburg, Sentinel, Gladden, Aguila, Casa Grande,
Apache Junction, Tonopah, Gila Bend, Coolidge, Cactus Forest,
Arlington, and Wintersburg
1204 AM MST Sun Aug 9 2026

...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* WHAT...Dangerously hot conditions. Afternoon temperatures 106 to
  113. Major Heat Risk.

* WHERE...Aguila Valley, Apache Junction/Gold Canyon, Cave Creek/New
  River, Fountain Hills/East Mesa, Gila Bend, Northwest Pinal County,
  Sonoran Desert Natl Monument, Tonopah Desert, and West Pinal
  County.

* WHEN...Until 8 PM MST this evening.

* IMPACTS...Heat related illnesses increase significantly during
  extreme heat events. Overexposure can cause heat cramps and heat
  exhaustion to develop and, without intervention, can lead to heat
  stroke.

* ADDITIONAL DETAILS...In Maricopa County, Call 2-1-1 to find a free
  cooling center, transportation, water and more.
  https://www.maricopa.gov/heat

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.

&&

$$

AZZ537-540-542>544-546-548-550-551-100300-
/O.CON.KPSR.XH.W.0007.000000T0000Z-260810T0300Z/
Northwest Valley-Buckeye/Avondale-Deer Valley-Central Phoenix-
North Phoenix/Glendale-Scottsdale/Paradise Valley-East Valley-
South Mountain/Ahwatukee-Southeast Valley/Queen Creek-
Including the cities of Wittmann, Queen Creek, Goodyear, Tempe,
Gilbert, Liberty, Mesa, Surprise, Sun City West, Peoria, Phoenix, Sun
Lakes, Chandler, Cashion, Avondale, Paradise Valley, Beardsley, and
Circle City
1204 AM MST Sun Aug 9 2026

...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* WHAT...Dangerously hot conditions. Afternoon temperatures 109 to
  112. Major Heat Risk.

* WHERE...Buckeye/Avondale, Central Phoenix, Deer Valley, East
  Valley, North Phoenix/Glendale, Northwest Valley,
  Scottsdale/Paradise Valley, South Mountain/Ahwatukee, and Southeast
  Valley/Queen Creek.

* WHEN...Until 8 PM MST this evening.

* IMPACTS...Heat related illnesses increase significantly during
  extreme heat events. Overexposure can cause heat cramps and heat
  exhaustion to develop and, without intervention, can lead to heat
  stroke.

* ADDITIONAL DETAILS...In Maricopa County, Call 2-1-1 to find a free
  cooling center, transportation, water and more.
  https://www.maricopa.gov/heat

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.

&&

$$

CAZ560-561-564-568-100300-
/O.CON.KPSR.XH.W.0007.000000T0000Z-260810T0300Z/
Joshua Tree NP West-Joshua Tree NP East-Chuckwalla Mountains-
Chiriaco Summit-
Including the cities of Imperial Hot Mineral Springs, Lost
Horse-Keys Village, Cottonwood Visitor, and Chiriaco Summit
1204 AM PDT Sun Aug 9 2026

...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS
EVENING...

* WHAT...Dangerously hot conditions. Afternoon temperatures 99 to
  111. Major Heat Risk.

* WHERE...Chuckwalla Mountains, Chiriaco Summit, Joshua Tree NP East,
  and Joshua Tree NP West.

* WHEN...Until 8 PM PDT this evening.

* IMPACTS...Heat related illnesses increase significantly during
  extreme heat events. Overexposure can cause heat cramps and heat
  exhaustion to develop and, without intervention, can lead to heat
  stroke.

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.

&&

$$

CAZ562-563-565>567-100300-
/O.CON.KPSR.XH.W.0007.000000T0000Z-260810T0300Z/
Imperial County Southwest-Salton Sea-Imperial County Southeast-
Imperial County West-Imperial Valley-
Including the cities of Plaster City, Mountain Spring, Desert Shores,
Winona, Brawley, Salton City, Coolidge Springs, Calexico, Alamorio,
Coyote Wells, El Centro, Winterhaven, and Ocotillo
1204 AM PDT Sun Aug 9 2026

...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS
EVENING...

* WHAT...Dangerously hot conditions. Afternoon temperatures 106 to
  115. Major Heat Risk.

* WHERE...Imperial County Southeast, Imperial County Southwest,
  Imperial County West, Imperial Valley, and Salton Sea.

* WHEN...Until 8 PM PDT this evening.

* IMPACTS...Heat related illnesses increase significantly during
  extreme heat events. Overexposure can cause heat cramps and heat
  exhaustion to develop and, without intervention, can lead to heat
  stroke.

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.

&&

$$

GL