Midwest and Mid-Atlantic storms

Massive thunderstorms have swept across the Midwest and Mid-Atlantic states, knocking out power to thousands of people and causing some flash flooding in certain areas. (AP)

Mid-Atlantic storms

gA Spencer resident wrings flood water out his mop as he begins the long task of cleaning up after flood waters overtook the town of Spencer, W.Va., Thursday, June 13, 2013. The West Virginia National Guard sent personnel to assist in Roane County after several inches of rain prompted flash flooding Thursday. (AP Photo/Charleston Daily Mail, Bob Wojcieszak)

Mid-Atlantic storms

Flood water inundates the town of Spencer, W.Va., Thursday, June 13, 2013. The flooding forced the evacuation of Roane County's 911 center and closed roads in the Spencer area, said Division of Homeland Security and Emergency Management director of operations Terrance Lively. (AP Photo/Charleston Daily Mail, Bob Wojcieszak)

Mid-Atlantic storms

Passing motorist Charles Jenkins, right, helps Lynchburg firefighters move branches of a tree that was blown over during the storm, blocking the southbound lanes of U.S. 501 through Lynchburg, Va. Thursday, June 13, 2013. About 140,000 homes and businesses remain without power in Virginia after a powerful storm pummeled the state. (AP Photo/The News & Advance, Parker Michels-Boyce)

Mid-Atlantic storms

City of Ripley employee Randy Sommerville hoses out the city's historic Newburn School, a former one-room school house that got flooded after heavy rains, Thursday, June 13, 2013 in Spencer W.Va. The flooding forced the evacuation of Roane County's 911 center and closed roads in the Spencer area, said Division of Homeland Security and Emergency Management director of operations Terrance Lively. (AP Photo/Charleston Daily Mail, Bob Wojcieszak)

Mid-Atlantic storms

Steve Thomas, manager of the Spencer Southern States store, tries to make an assessment of how much of his store's merchandise was washed away Thursday, June 13, 2013 in spencer W.Va. The West Virginia National Guard sent personnel to assist in Roane County after several inches of rain prompted flash flooding Thursday. (AP Photo/Charleston Daily Mail, Bob Wojcieszak)

Mid-Atlantic storms

WASHINGTON, DC - JUNE 13: The hotly anticipated storm front passes over the U.S. Capitol dome on its' way through town on June, 13, 2013 in Washington, DC. (Photo by Bill O'Leary/The Washington Post)

Mid-Atlantic storms

"COLESVILLE, MD - JUNE 13: Flames arc at the point where a power line was struck by a fallen tree branch on New Hampshire Ave. in Colesville, Maryland shortly after reports that a tornado had touched down in the area today. Photo by Michael S. Williamson/The Washington Post via Getty Images

Mid-Atlantic storms

&GAITHERSBURG, MD - JUNE 13: Commuters huddle together as they make their way to a parking garage near the train station Thursday June 13, 2013 in Gaithersburg, MD. Heavy rains drenched the area several minutes before they arrived. (Photo by Katherine Frey/The Washington Post via Getty Images)

Mid-Atlantic storms

@WASHINGTON, D.C., JUNE 13, 2013: DC Department of Transportation crews clean up the intersection of P and 18th streets in Northwest where the storm brought down a huge tree and prompted the closing of 18th several block of 18th Street during rush hour. (Photo by Astrid Riecken For The Washington Post via Getty Images)

Mid-Atlantic storms

LAUREL, MD- JUNE 13, 2013:Prince Georges County offical viewed the damage to the home at 5900 Parkway Dr. on June 13, 2013 in Laurel, MD.The home was damaged from a falling tree when fast-moving storms pass through the area.(Photo by Mark Gail/For The Washington Post via Getty Images)

Mid-Atlantic storms

GAITHERSBURG, MD - JUNE 13: Commuters make their way home in a light rain after getting off the train Thursday June 13, 2013 in Gaithersburg, MD. Heavy rain fell several minutes before they arrived. (Photo by Katherine Frey/The Washington Post via Getty Images)

Mid-Atlantic storms

GAITHERSBURG, MD - JUNE 13: Folks cross railroad tracks trying to get out of the torrential downpour Thursday June 13, 2013 in Gaithersburg, MD. (Photo by Katherine Frey/The Washington Post)

Mid-Atlantic storms

DAVIDSONVILLE, MD June 13: The tail end of the severe line of storms that hit the Washington DC region Thursday afternoon passes over a field on June 13, 2013 in Davidsonville, MD (Photo by Jonathan Newton / The Washington Post)

Mid-Atlantic storms

WASHINGTON, DC - JUNE 13: A storm blows in over the Potomac River in Washington, D.C. early Thursday June 13, 2013. The storm front spawn tornadoes and damage across the Ohio Valley before hitting the Washington area (Photo by Bill O'Leary/The Washington Post)

Mid-Atlantic storms

WASHINGTON, DC - JUNE 13: A storm blows in to Washington, D.C. Thursday June 13, 2013. The storm front spawned tornadoes and damage across the Ohio Valley before hitting the Washington area (Photo by Bill O'Leary/The Washington Post)

Mid-Atlantic storms

GDAVIDSONVILLE, MD June 13: Drivers maneuver to turn around on Bell Branch road after a severe line of storms hit the Washington DC region Thursday afternoon knocking out power with high winds falling trees and branches on June 13, 2013 in Davidsonville, MD (Photo by Jonathan Newton / The Washington Post via Getty Images)

Midwest Mid-Atlantic storms

CHICAGO, IL - JUNE 12: Lightning strikes the Willis Tower (formerly Sears Tower) in downtown on June 12, 2013 in Chicago, Illinois. A massive storm system with heavy rain, high winds, hail and possible tornadoes is expected to move into Illinois and much of the central part of the Midwest today. (Photo by Scott Olson/Getty Images)

Ed Zunino and Kenny Price with Tree Huggerz clears debris from a home after a storm passed through, Thursday, June 13, 2013 in Hockessin, Del. A massive storm system that started in the Upper Midwest and plowed across the country was hitting the Mid-Atlantic Thursday, causing widespread power outages and flash flooding, but still largely failing to live up to its fierce billing. (AP Photo/The Wilmington News-Journal, Suchat Pederson) NO SALES

Mid-Atlantic storms

©Ashley Rathel, holding her daughter Dakotah, 14 months, makes her way into Brandon Mill Farms condominiums by flashlight Thursday evening June 13, 2013. Rathel was at dinner with her husband and daughter when Thursday's storm rolled through, dropping a tree across the access to the condo complex. She had to climb through the fallen tree with her daughter to get home. (AP Photo/The Atlanta Journal-Constitution, Ben Gray)

Midwest Mid-Atlantic storms

CHICAGO, IL - JUNE 12: Storm clouds push toward downtown on June 12, 2013 in Chicago, Illinois. A massive storm system with heavy rain, high winds, hail and possible tornadoes is expected to move into Illinois and much of the central part of the Midwest today. (Photo by Scott Olson/Getty Images)

Mid-Atlantic storms

WASHINGTON, DC - JUNE 13: Storm clouds fill the sky over the U.S. Capitol Building, June 13, 2013 in Washington, DC. Potentially damaging storms are forecasted to hit parts of the east coast with potential for causing power wide spread outages. (Photo by Mark Wilson/Getty Images)

Mid-Atlantic storms

WASHINGTON, DC - JUNE 13: A man rides a bicycle on the plaza of the U.S. Capitol Building as storm clouds fill the sky June 13, 2013 in Washington, DC. Potentially damaging storms are forecasted to hit parts of the east coast with potential for causing power wide spread outages. (Photo by Mark Wilson/Getty Images)

Mid-Atlantic storms

Nancy Barkema, foreground, helps clean up her brother-in-law's farm in Alexander, Iowa, after a tornado was reported in the area on Wednesday June 12, 1013 in Alexander and Belmond. (AP Photo/The Des Moines Register, Bryon Houlgrave)

Midwest Mid-Atlantic storms

CHICAGO, IL - JUNE 12: Storm clouds move into downtown on June 12, 2013 in Chicago, Illinois. A massive storm system with heavy rain, high winds, hail and possible tornadoes is expected to move into Illinois and much of the central part of the Midwest today. (Photo by Scott Olson/Getty Images)

Lightning erupts over downtown Chicago on Wednesday, June 12, 2013, as a line of powerful storms cross over the Midwest. A massive line of storms packing hail, lightning and tree-toppling winds began rolling through the Midwest Wednesday evening and could affect more than one in five Americans from Iowa to Maryland before subsiding. (AP Photo/Dr. Scott M. Lieberman)

Mid-Atlantic storms

Ed Zunino and Kenny Price with Tree Huggerz clears debris from a home after a storm passed through, Thursday, June 13, 2013 in Hockessin, Del. A massive storm system that started in the Upper Midwest and plowed across the country was hitting the Mid-Atlantic Thursday, causing widespread power outages and flash flooding, but still largely failing to live up to its fierce billing. (AP Photo/The Wilmington News-Journal, Suchat Pederson)

Midwest Mid-Atlantic storms

CHICAGO, IL - JUNE 12: Lightning strike above downtown on June 12, 2013 in Chicago, Illinois. A massive storm system with heavy rain, high winds, hail and possible tornadoes is expected to move into Illinois and much of the central part of the Midwest today. (Photo by Scott Olson/Getty Images)

Chicago storm

A pedestrian races to avoid an unusually massive line of storms packing hail, lightning and tree-toppling winds that have been forecast for evening rush hour, Wednesday, June 12, 2013, in Chicago. (AP Photo/M. Spencer Green)

Mid-Atlantic storms

A part of a door was transplanted to its new location in a grassy field in Alexander, Iowa, after a tornado struck the area on Wednesday in Alexander and Belmond. Weather officials say multiple tornadoes touched ground in northern Iowa, causing damage to homes and businesses. (AP Photo/The Des Moines Register, Bryon Houlgrave)

Lighting flashes over the Chicago skyline, Wednesday, June 12, 2013. An unusually massive line of storms packing hail, lightning and tree-toppling winds was rolling through the Midwest on Wednesday and could affect more than one in five Americans from Iowa to Maryland. (AP Photo/Scott Eisen)

A Tree is uprooted during a thunderstorm damaging a house on the 600 block of N. Bradford St. Thursday, June 13, 2013 in Dover, Del. A massive storm system that started in the Upper Midwest and plowed across the country was hitting the Mid-Atlantic Thursday, causing widespread power outages and flash flooding, but still largely failing to live up to its fierce billing. (AP Photo/The Wilmington News-Journal, Gary Emeigh) NO SALES

Mid-Atlantic storms

Duane Barkema's truck sits on its side in Alexander, Iowa, after a tornado was reported in the area on Wednesday, June 12, 2013, in Alexander and Belmond. (AP Photo/The Des Moines Register, Bryon Houlgrave)

Midwest Mid-Atlantic storms

CHICAGO, IL - JUNE 12: Lightning strikes the Willis Tower (formerly Sears Tower) in downtown on June 12, 2013 in Chicago, Illinois. A massive storm system with heavy rain, high winds, hail and possible tornadoes is expected to move into Illinois and much of the central part of the Midwest today. (Photo by Scott Olson/Getty Images)

Mid-Atlantic storms

A truck drives off-road to avoid a tree downed on a frontage road next to Interstate 95 in Prince George County, Va. as a severe storm brought down trees and power lines across the area, Thursday, June 13,  2013. (AP Photo/The Progress-Index, Patrick Kane)

Midwest Mid-Atlantic storms

CHICAGO, IL - JUNE 12: Storm clouds push into the city's lakefront on June 12, 2013 in Chicago, Illinois. A massive storm system with heavy rain, high winds, hail and possible tornadoes is expected to move into Illinois and much of the central part of the Midwest today. (Photo by Scott Olson/Getty Images)

Threatening skies appear over Barrington, Ill. as severe weather approaches the Suburbs of Chicago on Wednesday, June 12, 2013. (AP Photo/Daily Herald, Bob Chwedyk) MANDATORY CREDIT; MAGS OUT, TV OUT