Rescuers in military helicopters airlifted 207 people to safety after an explosive wildfire trapped them in a popular camping area in California’s Sierra National Forest, one of dozens of fires burning Sunday amid record-breaking temperatures that strained the state’s electrical grid and for a time threatened power outages for millions. The California Office of Emergency Services said Black Hawk and Chinook helicopters were used for the rescues that began late Saturday and continued into Sunday morning at Mammoth Pool Reservoir. Two campers refused rescue and stayed behind, the Madera County Sheriff’s Office said, and there was no immediate word on their fates.
