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  2. Maps show where late-summer heat wave will impact ... - AOL

    www.aol.com/maps-show-where-summer-heat...

    A heat advisory was also in effect for a large part of northwestern Indiana on Tuesday, with an excessive heat warning in place for most of northern Illinois, according the weather service in Chicago.

  3. Excessive heat warning - Wikipedia

    en.wikipedia.org/wiki/Excessive_heat_warning

    An excessive heat warning is a notice issued by the National Weather Service of the United States within 12 hours of the heat index reaching one of two criteria levels. In most areas, a warning will be issued if there is a heat index of at least 105 °F (41 °C) for more than three hours per day for two consecutive days, or if the heat index is greater than 115 °F (46 °C) for any period of time.

  4. Heat wave: What to know when extreme hot weather is ... - AOL

    www.aol.com/heat-wave-know-extreme-hot-122429721...

    Excessive heat watch: Heat watches are issued when conditions are favorable for excessive heat in the next 24 to 72 hours. Excessive heat warning: The warning is issued within 12 hours of the ...

  5. Map: How vulnerable is your neighborhood to extreme heat? - AOL

    www.aol.com/news/map-vulnerable-neighborhood...

    The map shows risk levels down to the local level and uses Census Bureau data to show the share of the population vulnerable to extreme heat, alongside data from the First Street Foundation, a ...

  6. Excessive heat watch - Wikipedia

    en.wikipedia.org/wiki/Excessive_heat_watch

    An excessive heat watch is a notice issued by the National Weather Service of the United States when the high temperatures reach anywhere within the range of 95 °F (35 °C) and 100 °F (38 °C) in the continental US.

  7. Severe weather terminology (United States) - Wikipedia

    en.wikipedia.org/wiki/Severe_weather_terminology...

    [32] [35] [36] This product will be redesignated as an Extreme Heat Warning in March 2025. [37] Excessive heat watch NPW – Conditions are favorable for an excessive heat event with extreme Heat Index values during the day, combined with nighttime low temperatures of 80 °F (27 °C) or higher that limit perspiration recovery, are forecast to ...

  8. Climate change triggers new Florida heat warning chart that ...

    www.aol.com/climate-change-triggers-heat-warning...

    There were 39 days under a heat advisory in Palm Beach County, and three excessive heat warnings. Both alerts are based on heat index temperatures, and both set records.

  9. Excessive heat warning spreads across US - AOL

    www.aol.com/excessive-heat-warning-spreads...

    CHICAGO -- National Weather Service officials expect “blistering” heat over the next two days to hit the heart of the country, from Chicago to the Gulf Coast states, where the heat index ...