867 WWUS75 KPSR 230631 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 1131 PM MST Mon Jun 22 2026 AZZ530-532-533-CAZ569-232215- /O.UPG.KPSR.XH.A.0003.260624T1700Z-260626T0300Z/ /O.EXB.KPSR.XH.W.0003.260624T1700Z-260626T0300Z/ Parker Valley-Yuma-Central La Paz-Palo Verde Valley- Including the cities of Palo Verde, Parker, Blythe, Ehrenberg, Vicksburg, Harcuvar, Yuma, Ripley, Vicksburg Junction, Brenda, Martinez Lake, Quartzsite, Fortuna Foothills, and Salome 1131 PM MST Mon Jun 22 2026 /1131 PM PDT Mon Jun 22 2026/ ...EXTREME HEAT WARNING IN EFFECT FROM 10 AM MST /10 AM PDT/ WEDNESDAY TO 8 PM MST /8 PM PDT/ THURSDAY... * WHAT...Dangerously hot conditions possible. Afternoon temperatures 109 to 114. Moderate to locally Major Heat Risk. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. * WHERE...In Arizona, Central La Paz, Parker Valley, and Yuma areas. In California, Palo Verde Valley. * WHEN...From 10 AM MST /10 AM PDT/ Wednesday to 8 PM MST /8 PM PDT/ 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. && $$ AZZ537-540-542>544-546-548-550-551-232215- /O.UPG.KPSR.XH.A.0003.260624T1700Z-260626T0300Z/ /O.EXB.KPSR.XH.W.0003.260624T1700Z-260626T0300Z/ 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 Paradise Valley, Cashion, Phoenix, Gilbert, Liberty, Mesa, Queen Creek, Surprise, Beardsley, Sun Lakes, Circle City, Sun City West, Avondale, Goodyear, Peoria, Chandler, Wittmann, and Tempe 1131 PM MST Mon Jun 22 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 10 AM WEDNESDAY TO 8 PM MST THURSDAY... * WHAT...Dangerously hot conditions possible. Afternoon temperatures 109 to 114. Moderate to locally Major Heat Risk. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. * 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...From 10 AM Wednesday 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. http://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. && $$ CAZ562-566-567-232215- /O.UPG.KPSR.XH.A.0003.260624T1700Z-260626T0300Z/ /O.EXB.KPSR.XH.W.0003.260624T1700Z-260626T0300Z/ Imperial County Southwest-Imperial County West-Imperial Valley- Including the cities of Calexico, Brawley, Winona, Coyote Wells, Ocotillo, El Centro, Alamorio, Mountain Spring, Plaster City, Coolidge Springs, and Salton City 1131 PM PDT Mon Jun 22 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 10 AM WEDNESDAY TO 8 PM PDT THURSDAY... * WHAT...Dangerously hot conditions possible. Afternoon temperatures 109 to 114. Moderate to locally Major Heat Risk. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. * WHERE...Southwest Imperial County, and Imperial Valley. * WHEN...From 10 AM Wednesday to 8 PM PDT 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. && $$ AZZ560-232215- /O.CON.KPSR.XH.W.0003.260623T1800Z-260625T0300Z/ San Carlos- Including the cities of San Carlos and Peridot 1131 PM MST Mon Jun 22 2026 ...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 11 AM TUESDAY TO 8 PM MST WEDNESDAY... * WHAT...Dangerously hot conditions possible. Afternoon temperatures 107 to 112 expected. Major Heat Risk. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. * WHERE...San Carlos area. * WHEN...From 11 AM Tuesday to 8 PM MST Wednesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. PRECAUTIONARY/PREPAREDNESS ACTIONS... An Extreme Heat Warning means that a period of very hot temperatures, even by local standards, will occur. Actions should be taken to lessen the impact of the extreme heat. Take extra precautions if you work or spend time outside. When possible, reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose-fitting clothing when possible and drink plenty of water. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. Public cooling shelters are available in some areas. Consult county officials for more details. && $$ KB