Thunder and brief rain showers moved across parts of Los Angeles County on Saturday morning, surprising many as an extended heat wave continues through the weekend. The National Weather Service

As the entire electric system is spinning at a certain rate, if there is a fault, something that is a resistance to that spinning, if you have a large mass like Diablo Canyon, that provides a great resistance to that change in frequency. That protects the greater system and makes it more reliable and resilient to a change.

High school football teams across the West Coast delayed games as triple-digit heat threatened player safety. Schools implemented new monitoring systems and protocols.

Temperatures across interior Southern California will climb dramatically as a prolonged heat wave begins Wednesday and could persist into next week.

A dangerous heat wave has descended on much of California and the U.S. Southwest, with triple-digit temperatures expected along with a higher risk of wildfires.