Hosted on MSN9mon
What is heat index? How hot does it really feel outside? Use this chart to find out
To find the heat index temperature, the NWS has a chart and offers an online calculator. The chart is a grid where you can find the heat index temperature by looking at the air temperature and ...
Hosted on MSN20d
Extreme heat may speed up aging in older adults, research suggests
The National Weather Service Heat Index Chart categorizes heat index values into three levels based on the potential risk of adverse health effects. The "Caution" level includes heat index values ...