* WHAT…Dangerously hot conditions expected below 4000 feet, with daytime temperatures ranging from 105 degrees at Havasupai Gardens, to 111 degrees at Phantom Ranch. * WHERE…Lower elevations of the Grand Canyon. * WHEN…Until 7 PM MST Tuesday. * IMPACTS…Most individuals will be at risk for heat-related illnesses without effective cooling or adequate hydration, especially with prolonged outd
Source: National Weather Service
Indexed: Mon, 22 Jun 2026 16:33:11 UTC
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