Trees lie in the middle of Lake Ave. in Baltimore on Monday July 2, 2012, after a severe storm swept through the region late Friday. Power outages left many to contend with stifling homes and spoiled food over the weekend as temperatures approached or exceeded 100 degrees.(AP Photo/Jose Luis Magana)

Baltimore city worker Joe Lane gives away free bags of ice to residents at the Northwood Plaza shopping center in Baltimore on Monday, July 2, 2012. Around 2 million customers from North Carolina to New Jersey and as far west as Illinois were without power Monday morning after a round of summer storms. (AP Photo/Jose Luis Magana)

Police chief, Nick Gilgenbauch walks past a brick wall Monday, July 2, 2012, which fell Friday from the second story of the Christie's on the Square store in Columbus Grove, Ohio, and crushed, two vehicles parked in front. A structural engineer is in Columbus Grove, Ohio on Monday to survey damage. (AP Photo/The Lima News, Craig J. Orosz) MANDATORY CREDIT

A tree sitting atop a vehicle offers free firewood in Falls Church, Va., Monday, July, 2, 2012, as cleanup continued after Friday's storm, Around 2 million utility customers are without electricity across a swath of states along the East Coast and as far west as Illinois as the area recovers from a round of summer storms that has also caused at least 17 deaths. (AP Photo/Matthew Barakat)

Giovanny Alvarez, a letter carrier for the U.S. Postal Service, delivers mail to a residence in Washington, Monday, July 2, 2012 that damaged by the powerful storm that swept through the region Friday. (AP Photo/Evan Vucci)

City workers George Kirk, right, and Joe Lane give away free bags of ice to residents at the Northwood Plaza shopping center in Baltimore on Monday July 2, 2012. Around 2 million customers from North Carolina to New Jersey and as far west as Illinois were without power Monday morning after a round of summer storms. (AP Photo/Jose Luis Magana)

A Lynchburg City worker ties power lines above a traffic signal at Oakley and Memorial Avenues, July 1, 2012. Two days after storms tore across the eastern U.S., power outages were forcing people to get creative to stay cool in dangerously hot weather. Temperatures approached 100 degrees in many storm-stricken areas, and utility officials said the power will likely be out for several more days. (AP Photo/The News & Advance, Parker Michels-Boyce)

Marcia McCloud (right) and her great-granddaughter Makayla Milton, find some comfort together at the Red Cross cooling shelter at Sandusky Middle School in Lynchburg, Va., July 1, 2012. Milton was visiting her great-grandmother Friday when the storm hit and the two were forced to find other shelter. McCloud explained, "It's like a vacation, vacation away from home!" (AP Photo/The News & Advance, Parker Michels-Boyce)

A pedestrian takes a look at downed trees blocking the entrance of a house in Baltimore on Monday July 2, 2012, after a severe storm swept through the region late Friday. Power outages left many to contend with stifling homes and spoiled food over the weekend as temperatures approached or exceeded 100 degrees.(AP Photo/Jose Luis Magana)