Add Yahoo as a preferred source to see more of our stories on Google. The sticky combination of heat and high humidity can be more than uncomfortable -- it can be deadly. Mario Tama/Getty Images ...
Heat index values up to 104 degrees are expected. The WGAL News 8 Storm Team has designated Thursday as an Impact Day, due to the heat. An Impact Day means the day could feature weather that will ...
During the hot, humid summer months, meteorologists often discuss the heat index instead of the actual air temperature. But how is the heat index calculated, and why is it more important than the air ...
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