 17 times more than this time last year. Today is the day. It's the hottest day of the heat wave. A historic heat wave also searing the West. 158 million people under heat alerts. Death Valley could clock a scalding 129 degrees, just five degrees shy of the hottest temperature ever recorded on Earth. So what advice do you have for residents? Well, we wanna make sure that they're staying indoors between the hours of 10 and three, stay hydrated and rested.