The National Weather Service issued an Extreme Heat Warning for Northwest Valley, Deer Valley, Central Phoenix, North Phoenix/Glendale, Scottsdale/Paradise Valley, and East Valley, effective August 19 at 12:14 a.m. MST through August 21 at 8 p.m. MST. Afternoon temperatures are expected to reach 108 to 111 degrees, creating a major heat risk.
Heat-related illnesses increase significantly during extreme heat events, with potential for heat cramps, heat exhaustion, and heat stroke without intervention. Residents should take extra precautions if working or spending time outdoors, reschedule strenuous activities to early morning or evening when possible, and drink plenty of water. Maricopa County residents can call 2-1-1 to locate free cooling centers, transportation, water, and additional resources.
Source: National Weather Service
Sources
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- National Weather Service retrieved 19/08/2026 07:15
Authored by The Scottsdale Signal. Drafted by AI from primary-source material under our beat-specific editorial guides; reviewed by humans before publish under our five-gate process. Sources retrieved at 19/08/2026 07:15. Every claim traces to a source.
