A screenshot of the NWS HeatRisk map showing which parts of Florida are suffering from "extreme" heat. The heat index was expected to reach 110 degrees in Key West.

Dozens of volunteers scoured 100 square miles of Nashville to collect temperatures last year. Those heat measurements were combined with other data, like public health, income, and race, to show wh… ...

A heat map from the National Weather Service (NWS) shows that on Wednesday more than half of the U.S. was experiencing minor impacts from unseasonably high temperatures, with roughly a dozen ...

Health authorities in Oregon unveiled a heat map of the greater Portland area Wednesday, in the hope of avoiding deaths during the next excessive heat wave. July 11, 2025. contribute now.