Extreme Heat Warning
URGENT - WEATHER MESSAGE
National Weather Service Phoenix AZ
130 AM MST Tue Aug 19 2025
AZZ530>533-535-536-CAZ560>570-192230-
/O.CON.KPSR.XH.W.0007.250820T1700Z-250823T0300Z/
Parker Valley-Kofa-Yuma-Central La Paz-Southeast Yuma County-Gila
River Valley-Joshua Tree NP West-Joshua Tree NP East-Imperial
County Southwest-Salton Sea-Chuckwalla Mountains-Imperial County
Southeast-Imperial County West-Imperial Valley-Chiriaco Summit-
Palo Verde Valley-Chuckwalla Valley-
Including the cities of Midland, Alamorio, Quartzsite, Imperial
Hot Mineral Springs, Ligurta, Mountain Spring, Calexico, Palo
Verde, Salton City, Plaster City, Cottonwood Visitor, Brawley,
Parker, Salome, Winterhaven, Lost Horse-Keys Village, Winona, El
Centro, Harcuvar, Vicksburg, Palm Canyon, Coyote Wells,
Ehrenberg, Ocotillo, Coolidge Springs, Desert Shores, Yuma,
Blythe, Chiriaco Summit, Ripley, Martinez Lake, Fortuna
Foothills, Brenda, and Vicksburg Junction
130 AM MST Tue Aug 19 2025 /130 AM PDT Tue Aug 19 2025/
...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 106 to
116 expected. Major Heat Risk.
* WHERE...Portions of southwest Arizona and southeast and southern
California.
* 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.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Phoenix AZ
130 AM MST Tue Aug 19 2025
AZZ534-538-539-541-545-547-549-552>556-559-560-562-192230-
/O.CON.KPSR.XH.W.0007.250820T1700Z-250823T0300Z/
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-Tonto Basin-Sonoran Desert Natl Monument-San Carlos-
Globe/Miami-
Including the cities of Kaka, Arlington, Apache Junction,
Peridot, Globe, Sentinel, Wickenburg, Miami, Casa Grande, Gila
Bend, Florence, Cactus Forest, Hassayampa, Tortilla Flat, Aguila,
Scottsdale, Superior, Wintersburg, Coolidge, Tonopah, Punkin
Center, Gladden, Fountain Hills, and San Carlos
130 AM MST Tue Aug 19 2025
...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 10 AM WEDNESDAY TO 8
PM MST FRIDAY...
* WHAT...Dangerously hot conditions. Afternoon temperatures 106 to
114 expected. Major Heat Risk.
* WHERE...A portion of south central Arizona.
* WHEN...From 10 AM Wednesday to 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.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Phoenix AZ
130 AM MST Tue Aug 19 2025
AZZ537-540-542>544-546-548-550-551-192230-
/O.CON.KPSR.XH.W.0007.250820T1700Z-250823T0300Z/
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 Phoenix, Circle City, Cashion, Queen
Creek, Liberty, Surprise, Tempe, Wittmann, Avondale, Sun Lakes,
Goodyear, Sun City West, Peoria, Gilbert, Chandler, Paradise
Valley, Beardsley, and Mesa
130 AM MST Tue Aug 19 2025
...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 10 AM WEDNESDAY TO 8
PM MST FRIDAY...
* WHAT...Dangerously hot conditions. Afternoon temperatures 109 to
114 expected. Major Heat Risk.
* WHERE...The Northwest Valley of the Phoenix Metro Area, The East
Valley of the Phoenix Metro Area, Buckeye/Avondale, Deer Valley,
Central Phoenix, North Phoenix/Glendale, Scottsdale/Paradise
Valley, South Mountain/Ahwatukee, and Southeast Valley/Queen Creek.
* WHEN...From 10 AM Wednesday to 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.
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.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Tucson AZ
105 AM MST Tue Aug 19 2025
AZZ501>507-509-192300-
/O.CON.KTWC.XH.W.0006.250820T1700Z-250823T0300Z/
Western Pima County-Tohono O`odham Nation-Upper Santa Cruz River
Valley/Altar Valley-Tucson Metro Area-South Central Pinal County-
Southeast Pinal County-Upper San Pedro River Valley-Upper Gila
River Valley-
Including the cities of Nogales, Picacho Peak State Park, Green
Valley, Mammoth, Safford, Organ Pipe Cactus N.M., Vail, Tucson,
Benson, Clifton, Sierra Vista, Marana, Oracle, Sells, and Ajo
105 AM MST Tue Aug 19 2025
...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 10 AM WEDNESDAY TO 8
PM MST FRIDAY...
* WHAT...Dangerously hot conditions with temperatures ranging from
105 to 110 across much of Pima and southeastern Pinal counties
leading to widespread Major Heat Risk. In other areas of
southeastern Arizona, high temperatures will range from 100 to 105
degrees.
* WHERE...South Central Pinal County, Southeast Pinal County, Tohono
O`odham Nation, Tucson Metro Area, Upper Gila River Valley, Upper
San Pedro River Valley, Upper Santa Cruz River Valley/Altar
Valley, and Western Pima County.
* WHEN...From 10 AM Wednesday to 8 PM MST Friday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.
Take extra precautions if you work or spend time outside. When
possible, reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when possible
and drink plenty of water.
&&
$$
KJS
