Extreme Heat Warning

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 1250 PM MST Thu Jun 12 2025 ...EXTREME HEAT WARNING IN EFFECT FROM 10 AM SATURDAY TO 8 PM MST MONDAY... * WHAT...Dangerously hot conditions. Afternoon temperatures 104 to 114 expected. Major Heat Risk. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. * WHERE...Most of south central Arizona. * WHEN...From 10 AM Saturday to 8 PM MST Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. 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.