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That's the heat index. Here's how it works. The temperature on a summer day may be in the 80s or 90s. So why does it feel so much hotter? That's the heat index. Here's how it works.
A heat index of 103 or greater is considered dangerous, based on the National Weather Service heat index chart. The peak heat index forecast for the Rochester area will be 103 degrees on Wednesday ...
The heat risk index, first used in 2013 in California and expanded to some western states in 2017, debuted nationwide in an April 22 announcement by the NWS and Centers for Disease Control and ...
The National Weather Service has declared a heat advisory for Palm Beach County until 6 p.m. today. The advisory, which also covers Miami-Dade and Broward counties, will see peak heat indices, or ...
A generalized view of the heat index showing how the perception of heat by the human body increases with temperature but more rapidly at higher humidity levels. The heat index of a given combination of temperature and humidity is defined as the dry-bulb temperature which would feel the same if the water vapor pressure were 1.6 kPa. Quoting ...
The National Weather Service Tallahassee warned "dangerously hot conditions with heat index values up to 115 expected" today. The warning remains in effect until 7 p.m. CDT or 8 p.m. EDT Thursday ...
A heat advisory is in effect for southern New England from 8 a.m. Monday to 8 p.m. Wednesday.. Temperatures are expected to reach a high of 93 degrees and together with the high humidity could ...
Checking the temperature reading during a heat wave won’t tell the whole sweltering story. It’s going to feel a lot hotter. Why the heat index matters more than the temperature in a heat wave