Dangerous heat wave is building, will bring oppressive temperatures to much of the United States

more than 90 U.S. local temperature records will be tied or broken through Wednesday — with two-thirds of those being overnight heat records. Temperatures won’t drop below 80 F (27 C) at night in Fort Lauderdale, Florida; Miami; Tampa, Florida; Galveston, Texas; and Charleston, South Carolina, according to the forecast.

The current heat dome — formed continue reading …