514
WWUS75 KPSR 071539
NPWPSR

URGENT - WEATHER MESSAGE
National Weather Service Phoenix AZ
839 AM PDT Mon Sep 7 2026

CAZ562-081200-
/O.EXA.KPSR.XH.W.0009.260908T1700Z-260912T0300Z/
Imperial County Southwest-
Including the cities of Mountain Spring
839 AM PDT Mon Sep 7 2026

...EXTREME HEAT WARNING IN EFFECT FROM 10 AM TUESDAY TO 8 PM PDT
FRIDAY...

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

* WHERE...Imperial County Southwest.

* WHEN...From 10 AM Tuesday to 8 PM PDT Friday.

* 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.

&&

$$

AZZ531-535-536-538-539-559-081200-
/O.CON.KPSR.XH.W.0009.260908T1700Z-260911T0300Z/
Kofa-Southeast Yuma County-Gila River Valley-Tonopah Desert-Gila
Bend-Sonoran Desert Natl Monument-
Including the cities of Hassayampa, Arlington, Wintersburg, Sentinel,
Ligurta, Tonopah, Gila Bend, Kaka, and Palm Canyon
839 AM MST Mon Sep 7 2026

...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 10 AM TUESDAY TO 8 PM
MST THURSDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures 104 to
  109 expected. Major Heat Risk.

* WHERE...Gila Bend, Sonoran Desert Natl Monument, Tonopah Desert,
  Gila River Valley, Kofa, and Southeast Yuma County.

* WHEN...From 10 AM Tuesday to 8 PM MST Thursday.

* 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.

&&

$$

AZZ532-081200-
/O.CON.KPSR.XH.W.0009.260908T1700Z-260911T0300Z/
Yuma-
Including the cities of Yuma and Fortuna Foothills
839 AM MST Mon Sep 7 2026

...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 10 AM TUESDAY TO 8 PM
MST THURSDAY...

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

* WHERE...The Yuma area.

* WHEN...From 10 AM Tuesday to 8 PM MST Thursday.

* 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.

&&

$$

AZZ537-540>544-546-548>551-081200-
/O.CON.KPSR.XH.W.0009.260908T1700Z-260911T0300Z/
Northwest Valley-Buckeye/Avondale-Cave Creek/New River-Deer
Valley-Central Phoenix-North Phoenix/Glendale-Scottsdale/Paradise
Valley-East Valley-Fountain Hills/East Mesa-South
Mountain/Ahwatukee-Southeast Valley/Queen Creek-
Including the cities of Avondale, Beardsley, Circle City, Sun Lakes,
Wittmann, Phoenix, Chandler, Fountain Hills, Paradise Valley,
Goodyear, Scottsdale, Sun City West, Peoria, Liberty, Tempe, Queen
Creek, Gilbert, Surprise, Cashion, and Mesa
839 AM MST Mon Sep 7 2026

...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 10 AM TUESDAY TO 8 PM
MST THURSDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures 105 to
  109 expected. Major Heat Risk.

* WHERE...The Phoenix metropolitan area.

* WHEN...From 10 AM Tuesday to 8 PM MST Thursday.

* 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.

&&

$$

CAZ566-567-081200-
/O.CON.KPSR.XH.W.0009.260908T1700Z-260912T0300Z/
Imperial County West-Imperial Valley-
Including the cities of Ocotillo, Plaster City, Brawley, Salton City,
El Centro, Coolidge Springs, Alamorio, Coyote Wells, Winona, and
Calexico
839 AM PDT Mon Sep 7 2026

...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 10 AM TUESDAY TO 8 PM
PDT FRIDAY...

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

* WHERE...Imperial County West and Imperial Valley.

* WHEN...From 10 AM Tuesday to 8 PM PDT Friday.

* 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.

&&

$$

AZZ530-533-CAZ569-570-081200-
/O.CON.KPSR.XH.W.0009.260909T1700Z-260912T0300Z/
Parker Valley-Central La Paz-Palo Verde Valley-Chuckwalla Valley-
Including the cities of Martinez Lake, Ehrenberg, Vicksburg,
Vicksburg Junction, Blythe, Palo Verde, Harcuvar, Ripley, Salome,
Quartzsite, Brenda, Midland, and Parker
839 AM MST Mon Sep 7 2026 /839 AM PDT Mon Sep 7 2026/

...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 10 AM MST /10 AM PDT/
WEDNESDAY TO 8 PM MST /8 PM PDT/ FRIDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures 102 to
  111 expected. Major Heat Risk.

* WHERE...In Arizona, Central La Paz and Parker Valley. In
  California, Chuckwalla Valley and Palo Verde Valley.

* WHEN...From 10 AM MST /10 AM PDT/ Wednesday to 8 PM MST /8 PM PDT/
  Friday.

* 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.

&&

$$

AR