Extreme Heat Warning issued August 15 at 9:12AM MST until August 21 at 8:00PM MST by NWS Tucson AZ

  • WHAT...Dangerously hot conditions with high temperatures ranging between 103 to 110 degrees and low temperatures 79 to 85 degrees. Major HeatRisk is expected. * WHERE...South Central Pinal County, Southeast Pinal County, Tohono O'odham Nation, Tucson Metro Area, Upper Gila River Valley, and Western Pima County. * WHEN...From 10 AM Monday to 8 PM MST Friday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

What to do: 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.

Issued by NWS Tucson AZ; in effect until Sun, 16 Aug 2026 12:00:00 GMT.

Source: National Weather Service (NOAA). Factual summary of a public release; not financial advice.

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