668 WWUS75 KTWC 221802 NPWTWC URGENT - WEATHER MESSAGE National Weather Service Tucson AZ 1102 AM MST Sat Aug 22 2026 AZZ501-502-504>506-509-231245- /O.EXT.KTWC.XH.W.0006.000000T0000Z-260830T0300Z/ Western Pima County-Tohono O'odham Nation-Tucson Metro Area-South Central Pinal County-Southeast Pinal County-Upper Gila River Valley- Including the cities of Organ Pipe Cactus N.M., Picacho Peak State Park, Mammoth, Green Valley, Ajo, Safford, Vail, Sells, Tucson, Marana, Clifton, and Oracle 1102 AM MST Sat Aug 22 2026 ...EXTREME HEAT WARNING NOW IN EFFECT UNTIL 8 PM MST SATURDAY... * WHAT...Dangerously hot conditions with high temperatures ranging between 103 to 111 degrees and low temperatures 79 to 85 degrees. Major HeatRisk is expected through Tuesday and then widespread Extreme to Major HeatRisk Wednesday through Saturday. * WHERE...South Central Pinal County, Southeast Pinal County, Tohono O'odham Nation, Tucson Metro Area, Upper Gila River Valley, and Western Pima County. * WHEN...Until 8 PM MST Saturday. * 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  427 WWUS75 KPSR 221842 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 1142 AM MST Sat Aug 22 2026 AZZ530>533-535-536-CAZ562-565>567-569-570-231000- /O.EXT.KPSR.XH.W.0008.000000T0000Z-260830T0300Z/ 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 Ehrenberg, Yuma, Mountain Spring, Winterhaven, Vicksburg, Alamorio, Palm Canyon, Parker, Palo Verde, Midland, Calexico, Plaster City, Ocotillo, Vicksburg Junction, Coyote Wells, El Centro, Coolidge Springs, Harcuvar, Fortuna Foothills, Winona, Brawley, Quartzsite, Ripley, Salome, Salton City, Martinez Lake, Blythe, Ligurta, and Brenda 1142 AM MST Sat Aug 22 2026 /1142 AM PDT Sat Aug 22 2026/ ...EXTREME HEAT WARNING NOW IN EFFECT UNTIL 8 PM MST /8 PM PDT/ SATURDAY... * WHAT...Dangerously hot conditions. It will also be humid through the weekend. Afternoon temperatures 108 to 119 expected. Major to Extreme Heat Risk. * WHERE...Portions of southwest Arizona and southeast California. * WHEN...Until 8 PM MST /8 PM PDT/ Saturday. * 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>555-559-231000- /O.EXT.KPSR.XH.W.0008.000000T0000Z-260830T0300Z/ 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 Fountain Hills, Cactus Forest, Tonopah, Wintersburg, Arlington, Aguila, Sentinel, Gila Bend, Coolidge, Casa Grande, Apache Junction, Tortilla Flat, Gladden, Wickenburg, Hassayampa, Superior, Florence, Kaka, and Scottsdale 1142 AM MST Sat Aug 22 2026 ...EXTREME HEAT WARNING NOW IN EFFECT UNTIL 8 PM MST SATURDAY... * WHAT...Dangerously hot conditions. Afternoon temperatures 106 to 118 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 Saturday. * 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. && $$ AZZ537-540-542>544-546-548-550-551-231000- /O.EXT.KPSR.XH.W.0008.000000T0000Z-260830T0300Z/ Northwest Valley-Buckeye/Avondale-Deer Valley-Central Phoenix- North Phoenix/Glendale-Scottsdale/Paradise Valley-East Valley- South Mountain/Ahwatukee-Southeast Valley/Queen Creek- Including the cities of Tempe, Cashion, Phoenix, Circle City, Wittmann, Peoria, Sun City West, Mesa, Chandler, Gilbert, Sun Lakes, Avondale, Liberty, Paradise Valley, Queen Creek, Beardsley, Surprise, and Goodyear 1142 AM MST Sat Aug 22 2026 ...EXTREME HEAT WARNING NOW IN EFFECT UNTIL 8 PM MST SATURDAY... * WHAT...Dangerously hot conditions. Afternoon temperatures 108 to 116 expected. Major to Extreme Heat Risk. * WHERE...The Phoenix metropolitan area. * WHEN...Until 8 PM MST Saturday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. * ADDITIONAL DETAILS...In Maricopa County, call 2-1-1 to find a free cooling center, transportation, water and more. https://www.maricopa.gov/heat PRECAUTIONARY/PREPAREDNESS ACTIONS... An Extreme Heat Warning means that a period of very hot temperatures, even by local standards, will occur. Actions should be taken to lessen the impact of the extreme heat. Take extra precautions if you work or spend time outside. When possible, reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose-fitting clothing when possible and drink plenty of water. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. Public cooling shelters are available in some areas. Consult county officials for more details. && $$ AZZ560-231000- /O.EXT.KPSR.XH.W.0008.000000T0000Z-260830T0300Z/ San Carlos- Including the cities of San Carlos and Peridot 1142 AM MST Sat Aug 22 2026 ...EXTREME HEAT WARNING NOW IN EFFECT UNTIL 8 PM MST SATURDAY... * WHAT...Dangerously hot conditions. Afternoon temperatures 104 to 113 expected. Major to Extreme Heat Risk. * WHERE...San Carlos. * WHEN...Until 8 PM MST Saturday. * 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. && $$ SB  839 WWUS74 KOUN 221848 NPWOUN URGENT - WEATHER MESSAGE National Weather Service Norman OK 148 PM CDT Sat Aug 22 2026 OKZ011-012-014>019-024-025-028-029-040-041-230030- /O.NEW.KOUN.HT.Y.0042.260823T1700Z-260824T0100Z/ /O.CON.KOUN.HT.Y.0041.000000T0000Z-260823T0000Z/ Major-Garfield-Roger Mills-Dewey-Custer-Blaine-Kingfisher-Logan- Canadian-Oklahoma-McClain-Cleveland-Garvin-Murray- Including the cities of Vici, Geary, Fairview, Newcastle, Mustang, Okeene, Weatherford, Hennessey, Okarche, Sulphur, Taloga, Hammon, Lindsay, El Reno, Leedey, Purcell, Watonga, Concho, Oklahoma City, Kingfisher, Enid, Norman, Yukon, Seiling, Pauls Valley, Clinton, Moore, Cheyenne, Blanchard, Guthrie, Wynnewood, and Davis 148 PM CDT Sat Aug 22 2026 ...HEAT ADVISORY IN EFFECT FROM NOON TO 8 PM CDT SUNDAY... ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * WHAT...For the Heat Advisory today, heat index values up to 106. For the Heat Advisory Sunday, heat index values up to 108 expected. * WHERE...Portions of central, northern, northwest, southern, and western Oklahoma. * WHEN...For the Heat Advisory today, until 7 PM CDT this evening. For the Heat Advisory Sunday, from noon to 8 PM CDT Sunday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ OKZ021>023-027-033>039-044>046-050-TXZ083>090-230030- /O.NEW.KOUN.HT.Y.0042.260823T1700Z-260824T0100Z/ /O.CON.KOUN.HT.Y.0041.000000T0000Z-260823T0000Z/ Beckham-Washita-Caddo-Grady-Harmon-Greer-Kiowa-Jackson-Tillman- Comanche-Stephens-Cotton-Jefferson-Carter-Love-Hardeman-Foard- Wilbarger-Wichita-Knox-Baylor-Archer-Clay- Including the cities of Archer City, Henrietta, Hollis, Crowell, Temple, Sayre, Vernon, Thackerville, Sentinel, Ryan, Munday, Granite, Waurika, Holliday, Walters, Lakeside City, Ardmore, Sheppard AFB, Anadarko, Seymour, Mangum, Quanah, Scotland, Knox City, Altus, Elk City, Frederick, Chickasha, Duncan, Lawton, Hinton, Ringling, Hobart, Burns Flat, Marietta, Tuttle, Cordell, Wichita Falls, and Snyder 148 PM CDT Sat Aug 22 2026 ...HEAT ADVISORY IN EFFECT FROM NOON TO 8 PM CDT SUNDAY... ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * WHAT...For the Heat Advisory today, heat index values up to 109. For the Heat Advisory Sunday, heat index values up to 110 expected. * WHERE...Portions of central, southern, southwest, and western Oklahoma and northern Texas. * WHEN...For the Heat Advisory today, until 7 PM CDT this evening. For the Heat Advisory Sunday, from noon to 8 PM CDT Sunday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ OKZ009-010-026-030>032-042-043-047-048-051-052-230030- /O.NEW.KOUN.HT.Y.0042.260823T1700Z-260824T0100Z/ Ellis-Woodward-Lincoln-Pottawatomie-Seminole-Hughes-Pontotoc-Coal- Johnston-Atoka-Marshall-Bryan- Including the cities of Wellston, Ada, Prague, Durant, Madill, Davenport, Fargo, Arnett, Holdenville, Chandler, Wewoka, Coalgate, Meeker, Gage, Seminole, Shattuck, Woodward, Atoka, Kingston, Stroud, Tishomingo, Wetumka, and Shawnee 148 PM CDT Sat Aug 22 2026 ...HEAT ADVISORY IN EFFECT FROM NOON TO 8 PM CDT SUNDAY... * WHAT...Heat index values up to 110 expected. * WHERE...Portions of central, east central, northwest, and southeast Oklahoma. * WHEN...From noon to 8 PM CDT Sunday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ Mahale  887 WWUS75 KGGW 221849 NPWGGW URGENT - WEATHER MESSAGE National Weather Service Glasgow MT 1249 PM MDT Sat Aug 22 2026 MTZ016-017-021>023-230900- /O.CON.KGGW.LW.Y.0039.000000T0000Z-260823T0900Z/ Central and Southeast Phillips-Central and Southern Valley- Petroleum-Garfield-McCone- Including Fort Peck and Devils Creek Rec Area 1249 PM MDT Sat Aug 22 2026 ...LAKE WIND ADVISORY REMAINS IN EFFECT UNTIL 3 AM MDT SUNDAY... * WHAT...Southeast winds 15 to 25 mph with gusts up to 35 mph. * WHERE...Fort Peck Lake. * WHEN...Until 3 AM MDT Sunday. * IMPACTS...Strong winds and rough waves on area lakes will create hazardous conditions for small craft. * ADDITIONAL DETAILS...Waves up to 3 feet possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... Boaters on Fort Peck Lake should use extra caution since strong winds and rough waves can overturn small craft. && $$ Jackson