Heat Building from the Plains to the East Coast
A Heat Advisory continues through this evening over most of the Central Plains. Temperatures this afternoon have surged well into the 90s, even above the century point in St. Louis. With high humidity and dew points, the heat index has pushed into the triple digits.
The hot readings will spread to the East Coast for Thursday and Friday. Temperatures will soar into the 90s and the heat index will climb above the century point, especially near Philadelphia. An Excessive Heat Watch has been issued in that area.
For WeatherNation: Meteorologist Mace Michaels