The mid-July heat wave, in five maps and diagrams

Atticus Dryden plays in the water with his sister, Penelope Dryden, both of Kalamazoo, as they try to beat the heat at Ramona ...

Where, when and how bad the Fourth of July heat wave will be, in seven diagrams, charts and maps

The U.S. is looking at an unwelcome birthday gift: a dangerous heat wave arriving ahead of the holiday weekend. Limited time: Save 25% on NBC News subscription Get exclusive reporting, live Q&As and ...