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

Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
577
WWUS75 KPSR 220745
NPWPSR

URGENT - WEATHER MESSAGE
National Weather Service Phoenix AZ
1245 AM MST Sat Aug 22 2026

AZZ530>533-535-536-CAZ562-565>567-569-570-222200-
/O.CON.KPSR.XH.W.0008.000000T0000Z-260829T0300Z/
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 Winona, El Centro, Winterhaven, Harcuvar,
Mountain Spring, Alamorio, Salome, Palo Verde, Brenda, Yuma, Palm
Canyon, Ripley, Vicksburg, Plaster City, Ligurta, Calexico, Coyote
Wells, Ehrenberg, Fortuna Foothills, Blythe, Brawley, Parker,
Ocotillo, Quartzsite, Martinez Lake, Vicksburg Junction, Salton City,
Midland, and Coolidge Springs
1245 AM MST Sat Aug 22 2026 /1245 AM PDT Sat Aug 22 2026/

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

* WHAT...Dangerously hot conditions. It will also be humid through
  the weekend. Afternoon temperatures 106 to 117 expected. Major to
  Extreme Heat Risk.

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

* WHEN...Until 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.

&&

$$

AZZ534-538-539-541-545-547-549-552>555-559-222200-
/O.CON.KPSR.XH.W.0008.000000T0000Z-260829T0300Z/
Aguila Valley-Tonopah Desert-Gila Bend-Cave Creek/New River-New
River Mesa-Rio Verde/Salt River-Fountain Hills/East Mesa-Superior-
Northwest Pinal County-West Pinal County-Apache Junction/Gold
Canyon-Sonoran Desert Natl Monument-
Including the cities of Arlington, Tonopah, Sentinel, Wintersburg,
Fountain Hills, Gladden, Cactus Forest, Florence, Kaka, Scottsdale,
Superior, Tortilla Flat, Apache Junction, Gila Bend, Aguila, Casa
Grande, Hassayampa, Wickenburg, and Coolidge
1245 AM MST Sat Aug 22 2026

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

* WHAT...Dangerously hot conditions. Afternoon temperatures 104 to
  116 expected. Major to Extreme 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, New River Mesa, Rio
  Verde/Salt River, and Superior.

* WHEN...Until 8 PM MST 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.

* 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>544-546-548-550-551-222200-
/O.CON.KPSR.XH.W.0008.000000T0000Z-260829T0300Z/
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 Gilbert, Sun Lakes, Wittmann, Liberty,
Beardsley, Surprise, Paradise Valley, Circle City, Phoenix, Mesa, Sun
City West, Cashion, Goodyear, Chandler, Queen Creek, Peoria, Tempe,
and Avondale
1245 AM MST Sat Aug 22 2026

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

* WHAT...Dangerously hot conditions. Afternoon temperatures 108 to
  114 expected. Major to Extreme Heat Risk.

* WHERE...The Phoenix metropolitan area.

* WHEN...Until 8 PM MST 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.

* 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.

&&

$$

AZZ560-222200-
/O.CON.KPSR.XH.W.0008.000000T0000Z-260829T0300Z/
San Carlos-
Including the cities of San Carlos and Peridot
1245 AM MST Sat Aug 22 2026

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

* WHAT...Dangerously hot conditions. Afternoon temperatures 103 to
  113 expected. Major to Extreme Heat Risk.

* WHERE...San Carlos.

* WHEN...Until 8 PM MST 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.

&&

$$

KB