(NEXSTAR) — It may be hard to think about sweltering temperatures in early March, but the National Weather Service (NWS) is already rolling out changes to the weather alerts used to inform the public of the dangers of impending heat. Americans may be familiar with “Excessive Heat Watches” and “Excessive Heat Warnings,” issued when potentially dangerous heat conditions are in the forecast. Starting this month, those alerts will be no more — sort of. Like it did with wind chill alerts in fall, the NWS is adjusting the names of its heat watch and warning alert. Instead, dangerous heat conditions...