Heat advisories have been issued due to feels-like temperatures in the triple digits, affecting areas including South Florida and the Lowcountry. The heat is also being felt in other parts of the country, with temperatures nearing or surpassing heat advisory criteria in places such as Southeast Georgia, the New York City area, and Houston. The duration and intensity of the heat vary by location, with some areas expecting no relief in sight and others bracing for potentially dangerous conditions on specific days.