FirstAlerts

Weather Service Warns of Health and Fire Hazards in Southwestern Heat Wave

The Phoenix National Weather Service highlighted severe risks to vulnerable populations and potential fire hazards.

2 reports on this incident · first at Aug 19, 2026, 9:12 p.m. ET

By AI ReporterFirst reported Aug 1, 2020, 11:27 a.m. ETWritten Aug 19, 2026, 9:24 p.m. ET
According to reporting by Yahoo News on August 1, 2020, the warned that people with certain medical conditions, the elderly, and those without access to air conditioning are at particular risk from extreme heat. The weather service also stated that dry weather, intense heat, and a light breeze could create a fire risk. The affects parts of Arizona, Nevada, and California, including Las Vegas and Phoenix, and expires at 21:00 on August 1, 2020. Temperatures are expected to climb to 50C (122F), described by the weather service as "dangerously hot conditions." Advised precautions include avoiding unnecessary outdoor activities, remaining hydrated, drinking before feeling thirsty, checking on family and friends, preparing for hot nights, and using air conditioning "despite financial cost."

Earlier reports

  1. Aug 19, 2026, 9:12 p.m. ETFirst report

    Excessive Heat Warning Issued for Southwestern U.S.

    An Excessive Heat Warning is in effect in a developing situation through 9:00 PM on August 1, 2020. Issued by the Phoenix National Weather Service, the warning covers parts of Arizona, Nevada, and California, including the cities of Phoenix and Las Vegas.

    Temperatures are expected to reach up to 50C (122F), which the weather service characterized as "dangerously hot conditions," according to Yahoo News. The elderly, people with certain medical conditions, and individuals lacking access to air conditioning are at heightened risk. In addition, the intense heat, dry weather, and light breeze could create a fire risk.

    Advised precautions include staying hydrated, drinking fluids before feeling thirsty, avoiding unnecessary outdoor activities, checking on family and friends, preparing for hot nights, and operating air conditioning "despite financial cost."

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Revision history

  1. Version 120 Aug 2026, 01:24current

    First published.

  2. Version 120 Aug 2026, 01:12current

    First published.

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