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Severe · Extreme Heat WarningActive alert

Extreme Heat Warning issued September 5 at 12:29PM CDT until September 5

Affecting Boone; Moniteau; Cole; Osage; Callaway; Gasconade; Crawford; Reynolds

In effect until: Sep 6, 2026, 8:30 AM

Boone; Moniteau; Cole; Osage; Callaway; Gasconade; Crawford; Reynolds

Likely impact; effects through 8:30 AM.

Stay in air conditioning if possible. Drink water regularly and check on elderly neighbors.

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Read the original bulletin (official text)
* WHAT...For the Extreme Heat Warning, dangerously hot conditions
with heat index values up to 106. For the Heat Advisory, heat index
values up to 101 expected.

* WHERE...Boone MO, Callaway MO, Cole MO, Moniteau MO, Osage MO,
Crawford MO, Gasconade MO, and Reynolds MO Counties.

* WHEN...For the Extreme Heat Warning, until 8 PM CDT this evening.
For the Heat Advisory, from 8 PM this evening to 7 PM CDT Sunday.

* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events. Hot temperatures and high
humidity may cause heat illnesses.
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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™