442 WWUS75 KFGZ 281915 NPWFGZ URGENT - WEATHER MESSAGE National Weather Service Flagstaff AZ 1215 PM MST Tue Jul 28 2026 AZZ018-292300- /O.EXA.KFGZ.XH.W.0007.260731T1700Z-260803T0300Z/ Northern Gila County- Including the cities of Strawberry, Payson, and Young 1215 PM MST Tue Jul 28 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 10 AM FRIDAY TO 8 PM MST SUNDAY BELOW 4000 FEET... * WHAT...Dangerously hot conditions, with temperatures 105 to 111 expected below 4000 feet. * WHERE...Northern Gila County below 4000 feet elevation. * WHEN...From 10 AM Friday to 8 PM MST Sunday. * IMPACTS...Most individuals will be at risk for heat-related illnesses without effective cooling or adequate hydration, especially with prolonged outdoor exposure. 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. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take action when you see symptoms of heat exhaustion and heat stroke. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. Stay cool, stay hydrated, stay informed. && $$ AZZ006-292300- /O.CON.KFGZ.XH.W.0007.260730T1700Z-260803T0300Z/ Grand Canyon Country- Including the cities of Grand Canyon Village, Supai, Tusayan, and Grand Canyon North Rim 1215 PM MST Tue Jul 28 2026 ...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 10 AM THURSDAY TO 8 PM MST SUNDAY BELOW 4000 FEET... * WHAT...Dangerously hot conditions expected below 4000 feet, with daytime temperatures ranging from 104 to 109 degrees at Havasupai Gardens, and 112 to 117 degrees at Phantom Ranch. * WHERE...Lower elevations of the Grand Canyon. * WHEN...From 10 AM Thursday to 8 PM MST Sunday. * IMPACTS...Most individuals will be at risk for heat-related illnesses without effective cooling or adequate hydration, especially with prolonged outdoor exposure. PRECAUTIONARY/PREPAREDNESS ACTIONS... This warning is reserved for only the hottest days of the year and is issued when temperatures are expected to rise to dangerous levels. Day hikers on Bright Angel Trail should descend no farther than 1 1/2 miles from the upper trailhead. Between the hours of 10 AM and 4 PM, hikers should be out of the canyon or at Havasupai Gardens or Bright Angel campgrounds, physical activity is discouraged. All hikers should have adequate gear, including a wide-brimmed hat, sunscreen, salty snacks, sufficient water, and electrolyte mix. Doubling your calorie intake helps maintain your energy. Hike smart. && $$ AZZ005-038-292300- /O.CON.KFGZ.XH.W.0007.260731T1700Z-260803T0300Z/ Marble and Glen Canyons-Oak Creek and Sycamore Canyons- Including the cities of Lees Ferry, Page, Sedona, and Village of Oak Creek 1215 PM MST Tue Jul 28 2026 /115 PM MDT Tue Jul 28 2026/ ...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 10 AM MST /11 AM MDT/ FRIDAY TO 8 PM MST /9 PM MDT/ SUNDAY... * WHAT...Dangerously hot conditions, with temperatures around 103 to 110 expected. * WHERE...Marble and Glen Canyons and Oak Creek and Sycamore Canyons. * WHEN...From 10 AM MST /11 AM MDT/ Friday to 8 PM MST /9 PM MDT/ Sunday. * IMPACTS...Most individuals will be at risk for heat-related illnesses without effective cooling or adequate hydration, especially with prolonged outdoor exposure. 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. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take action when you see symptoms of heat exhaustion and heat stroke. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. Stay cool, stay hydrated, stay informed. && $$ AZZ037-292300- /O.CON.KFGZ.XH.W.0007.260731T1700Z-260803T0300Z/ Yavapai County Valleys and Basins- Including the cities of Cottonwood, Camp Verde, Bagdad, and Cordes Junction 1215 PM MST Tue Jul 28 2026 ...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 10 AM FRIDAY TO 8 PM MST SUNDAY BELOW 4000 FEET... * WHAT...Dangerously hot conditions, with temperatures around 106 to 113 expected below 4000 feet. * WHERE...Yavapai County Valleys and Basins. * WHEN...From 10 AM Friday to 8 PM MST Sunday. * IMPACTS...Most individuals will be at risk for heat-related illnesses without effective cooling or adequate hydration, especially with prolonged outdoor exposure. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take action when you see symptoms of heat exhaustion and heat stroke. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. Stay cool, stay hydrated, stay informed. && $$ JJ