Publication Date July 21, 2016

Extreme heat broiling the central U.S.

Central Plains
A lifeguard, center in red, overseas a platform as people beat the oppressive heat and humidity Thursday, July 21, 2016, at Lake Harriet in Minneapolis. Photo: Jim Mone, AP

Extreme heat broiling the central U.S. is moving East for the weekend.

From the Great Lakes to the Atlantic -- temperatures are expected well into the 90s, with high humidity.

Heat advisories have been posted in 23 states.

The heat scorched construction workers in California, singed softball players in Kansas, and even stressed out trout in Montana on Thursday, where some of the state's most popular streams were closed as a consequence, CBS News correspondent Dean Reynolds reported.

The Gulf of Mexico is the hottest it's been since record-keeping started in 1982