text:  Live from NPR News, I'm Dale Willman. Much of the West Coast is continuing to suffer this weekend from temperatures that are 15 to 30 degrees higher than average. As NPR's Nathan Rutt reports, the heat wave is breaking records and it's not showing any signs of letting up. More than 100 million people are under heat advisories nationwide, the majority here on the West Coast, where triple-digit temperatures are stoking wildfires and prompting stern warnings from public health officials.