Very slight relief from the extreme heat is in the forecast this week before yet another round of high pressure moves into Southern California.
Most of America's Lower 48 states are about to swelter under an unusually large, strong and long-lasting heat dome.
El Niño is officially on the rise. Ocean temperatures along the equatorial Pacific are running 1.2°C above average, and forecasters say warming is expected to continue into winter.
As a dangerous heat wave blankets more than two dozen states this week, more people are looking for various ways to stay cool.