How hot is it in South Florida? Let us count the ways 

“WBGT” may sound like a classic rock radio station playing cool songs, but it’s really yet another way for experts to tell us how dreadfully hot it is in South Florida, with a little more precision.

The National Weather Service routinely informs us what the heat index, or “feels-like” temperature is, but the agency has recently been emphasizing what’s called the Wet Bulb Globe Temperature, or WBGT.

Like the heat index, the WBGT measured air temperature and relative humidity, but also adds in key factors such as wind speed...