843 WWUS75 KTWC 221915 NPWTWC URGENT - WEATHER MESSAGE National Weather Service Tucson AZ 1215 PM MST Mon Jun 22 2026 AZZ504-506-507-509-231200- /O.UPG.KTWC.XH.A.0002.260623T1800Z-260625T0300Z/ /O.NEW.KTWC.XH.W.0002.260623T1800Z-260625T0300Z/ Tucson Metro Area-Southeast Pinal County-Upper San Pedro River Valley-Upper Gila River Valley- Including the cities of Oracle, Mammoth, Vail, Tucson, Green Valley, Benson, Sierra Vista, Safford, Marana, and Clifton 1215 PM MST Mon Jun 22 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 11 AM TUESDAY TO 8 PM MST WEDNESDAY... * WHAT...Dangerously hot conditions with afternoon temperatures of 107 to 111 degrees. Localized Major Heat Risk. * WHERE...Southeast Pinal County, Tucson Metro Area, Upper Gila River Valley, and Upper San Pedro River Valley (mainly north of Benson). * WHEN...From 11 AM Tuesday to 8 PM MST Wednesday. * 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. && $$ JRG