262 WWUS75 KPSR 070733 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 1233 AM MST Mon Sep 7 2026 AZZ531-535-536-538-539-559-072200- /O.NEW.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 Sentinel, Tonopah, Kaka, Palm Canyon, Hassayampa, Ligurta, Gila Bend, Arlington, and Wintersburg 1233 AM MST Mon Sep 7 2026 ...EXTREME HEAT WARNING 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. 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. && $$ AZZ532-072200- /O.NEW.KPSR.XH.W.0009.260908T1700Z-260911T0300Z/ Yuma- Including the cities of Yuma and Fortuna Foothills 1233 AM MST Mon Sep 7 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 10 AM TUESDAY TO 8 PM MST THURSDAY... * WHAT...Dangerously hot conditions. Afternoon temperatures 107 to 109 expected. Major Heat Risk. * WHERE...The Yuma area. * WHEN...From 10 AM Tuesday to 8 PM MST Thursday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. PRECAUTIONARY/PREPAREDNESS ACTIONS... An Extreme Heat Warning means that a period of very hot temperatures, even by local standards, will occur. Actions should be taken to lessen the impact of the extreme heat. Take extra precautions if you work or spend time outside. When possible, reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose-fitting clothing when possible and drink plenty of water. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. Public cooling shelters are available in some areas. Consult county officials for more details. && $$ AZZ537-540>544-546-548>551-072200- /O.NEW.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, Mesa, Circle City, Sun Lakes, Wittmann, Fountain Hills, Paradise Valley, Peoria, Sun City West, Gilbert, Phoenix, Cashion, Liberty, Queen Creek, Chandler, Tempe, Scottsdale, Goodyear, Beardsley, and Surprise 1233 AM MST Mon Sep 7 2026 ...EXTREME HEAT WARNING 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. && $$ CAZ566-567-072200- /O.NEW.KPSR.XH.W.0009.260908T1700Z-260912T0300Z/ Imperial County West-Imperial Valley- Including the cities of Brawley, Calexico, Alamorio, Plaster City, Salton City, El Centro, Coyote Wells, Ocotillo, Coolidge Springs, and Winona 1233 AM PDT Mon Sep 7 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 10 AM TUESDAY TO 8 PM PDT FRIDAY... * WHAT...Dangerously hot conditions. Afternoon temperatures 106 to 112 expected. Major Heat Risk. * WHERE...Imperial County West and Imperial Valley. * WHEN...From 10 AM Tuesday to 8 PM PDT Friday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. PRECAUTIONARY/PREPAREDNESS ACTIONS... An Extreme Heat Warning means that a period of very hot temperatures, even by local standards, will occur. Actions should be taken to lessen the impact of the extreme heat. Take extra precautions if you work or spend time outside. When possible, reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose-fitting clothing when possible and drink plenty of water. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. Public cooling shelters are available in some areas. Consult county officials for more details. && $$ AZZ530-533-CAZ569-570-072200- /O.NEW.KPSR.XH.W.0009.260909T1700Z-260912T0300Z/ Parker Valley-Central La Paz-Palo Verde Valley-Chuckwalla Valley- Including the cities of Quartzsite, Midland, Salome, Ripley, Harcuvar, Ehrenberg, Blythe, Parker, Vicksburg Junction, Palo Verde, Brenda, Vicksburg, and Martinez Lake 1233 AM MST Mon Sep 7 2026 /1233 AM PDT Mon Sep 7 2026/ ...EXTREME HEAT WARNING 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. && $$ TW