RICHMOND, Va. — Violent evening storms following a day of triple-digit temperatures wiped out power to more than 2 million people across the eastern United States and caused two fatalities in Virginia — including a 90-year-old woman asleep in bed when a tree slammed into her home, a police spokeswoman said Saturday.

Widespread power outages were reported from Indiana to New Jersey, with the bulk of the service interruptions concentrated on Washington, D.C., and the surrounding areas. Earlier Friday, the nation’s capital reached 104 degrees — topping a record of 101 set in 1934.