The storms that converged on Maryland, Virginia, West Virginia, Washington, D.C. and Ohio packed winds topping 70 mph in some places, uprooting trees and damaging numerous homes. They came after a day of sweltering heat across the region.[break]
The nation´s capital reached 104 degrees just before 3 p.m., according to the National Weather Service, beating a record of 101 set in 1934.

This image provided by NASA taken by an Expedition 31 crew member Wednesday June 27, 2012 aboard the International Space Station, flying approximately 240 miles above Earth, recorded a series of images of the current wild fires in the southwestern United States. (AP Photo/NASA)
Fairfax County police spokeswoman Mary Ann Jennings said the woman in the Springfield, Va., area was killed during the height of the storm. Authorities were at the scene of the home but weren´t able to immediately get inside, she said.
Jennings said police also were responding elsewhere to reports of a park police officer injured when his car was hit by a tree and an 18-year-old man struck by a downed power line.
As of 1 a.m. Saturday, Pepco was reporting 406,000 outages in the District of Columbia and Montgomery and Prince George´s counties, Md.
"We have more than half our system down," said Pepco spokeswoman Myra Oppel. "This is definitely going to be a multi-day outage."
West Virginia Gov. Earl Ray Tomblin declared a state of emergency after more than 500,000 customers in 27 counties were left without electricity.
In Washington, D.C., Metrorail trains were returned to their endpoints due to the storms and related damage, officials said.

President Barack Obama talks with firefighters as he tours the Mountain Shadow neighborhood devastated by wildfires, Friday, June 29, 2012, in Colorado Springs, Colo. (AP Photo/Carolyn Kaster)
"It has had a widespread effect on the region," Metro spokesman Dan Stessel said early Saturday. He said about 17 train stations were operating on backup power due to local power outages, but that he didn´t anticipate service being disrupted on Saturday.
In Ohio, the State Highway Patrol said three tractor trailers blew over on Interstate 75 near Findlay, but no one was injured.
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