The National Weather Service has issued a heat advisory from 11 a.m. Tuesday through 8 p.m. Wednesday for much of central Pennsylvania, with heat index values potentially reaching 104 degrees. Temperatures will remain in the 85 to 95 degree range, approximately 10 to 15 degrees above historical averages and approaching daily record levels.

Nashville's NWS issues a Heat Advisory warning of extreme temperatures and high humidity until Wednesday evening.

PANAMA CITY — July 28 got hot in Bay County, with even higher heat indices expected on July 29. As Alert Bay sends out heat advisory notifications, forecasters are urging residents to stay in a cool place during daytime heat, use air conditioning where available, and stay hydrated.

A heat advisory has been issued for the Lower Hudson Valley on Monday, July 28, as heat index levels are predicted to reach over 104 degrees.

Orlando heat wave triggers Heat Advisory with temperatures reaching mid to upper 90's and heat index up to 110°F.

A prolonged heat wave continues across east-central Florida on Tuesday, with well-above-normal temperatures and heat index readings. An Extreme Heat Watch (Orlando northward) and a Heat Advisory (elsewhere) take effect at noon.

The decision was made after the National Weather Service reported the local heat index could range from 105 to 109 degrees.

An intense heat wave threatens millions of people across the Southeast with temperatures reaching 115 degrees through midweek.