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Extreme Heat Advisories/Warnings
Taxonomy Code: TH-2100.9500-170
Programs that issue bulletins to warn the public that unusually hot weather has been forecast and provide safety instructions for vulnerable individuals which may include the suggestion that they remain in their homes if air-conditioned or find appropriate shelter. When temperatures and the heat/humidity index are expected to be 100 degrees Fahrenheit (or higher, a heat advisory is issued. A heat warning is issued for temperatures and/or heat indices of 110 degrees Fahrenheit or higher. The exact combination of indices may vary between jurisdictions and may include factors such as dew point, cloud cover, humidity, wind speed and direction, and the duration of the hot spell. Extreme heat can be very dangerous when combined with high humidity or drought conditions.
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