Okla. tornado home damage estimated from photos

Monty Montgomery surveys the scene as he prepares to clean up a friend's tornado-ravaged home Thursday, May 23, 2013, in Moore, Okla. Cleanup continues three days after a huge tornado roared through the Oklahoma City suburb, flattening a wide swath of homes and businesses. (AP Photo/Charlie Riedel)

Kids, teachers from devastated school reunite

Monty Montgomery walks among rubble as he prepares to clean up a friend's tornado-ravaged home Thursday, May 23, 2013, in Moore, Okla. Cleanup continues three days after a huge tornado roared through the Oklahoma City suburb, flattening a wide swath of homes and businesses. (AP Photo/Charlie…

Kids, teachers from devastated school reunite

Monty Montgomery surveys the scene as he prepares to clean up a friend's tornado-ravaged home Thursday, May 23, 2013, in Moore, Okla. Cleanup continues three days after a huge tornado roared through the Oklahoma City suburb, flattening a wide swath of homes and businesses. (AP Photo/Charlie Riedel)

Kids, teachers from devastated school reunite

Monty Montgomery walks among rubble as he prepares to clean up a friend's tornado-ravaged home Thursday, May 23, 2013, in Moore, Okla. Cleanup continues three days after a huge tornado roared through the Oklahoma City suburb, flattening a wide swath of homes and businesses. (AP Photo/Charlie…

Thunderstorms slow Oklahoma tornado cleanup

Monty Montgomery walks among rubble as he prepares to clean up a friend's tornado-ravaged home Thursday, May 23, 2013, in Moore, Okla. Cleanup continues three days after a huge tornado roared through the Oklahoma City suburb, flattening a wide swath of homes and businesses. (AP Photo/Charlie…

Thunderstorms slow Oklahoma tornado cleanup

Monty Montgomery walks among rubble as he prepares to clean up a friend's tornado-ravaged home Thursday, May 23, 2013, in Moore, Okla. Cleanup continues three days after a huge tornado roared through the Oklahoma City suburb, flattening a wide swath of homes and businesses. (AP Photo/Charlie…

Thunderstorms slow Oklahoma tornado cleanup

Brittany Brown rushes to get aid after finding her grandmother's cat "Kitty" which was buried in tornado rubble for two days at the grandmother's destroyed home Wednesday, May 22, 2013, in Moore, Okla. Cleanup continues two days after a huge tornado roared through the Oklahoma City suburb, f…

Thunderstorms slow Oklahoma tornado cleanup

Jesse Edgar takes a break in the shade while helping salvage items at a friend's home Wednesday, May 22, 2013, in Moore, Okla. Cleanup continues two days after a huge tornado roared through the Oklahoma City suburb, flattening a wide swath of homes and businesses. (AP Photo/Charlie Riedel)

Thunderstorms slow Oklahoma tornado cleanup

An unidentified man tosses a board as residents sort through their tornado-ravaged homes Wednesday, May 22, 2013, in Moore, Okla. Cleanup continues two days after a huge tornado roared through the Oklahoma City suburb, flattening a wide swath of homes and businesses. (AP Photo/Charlie Riedel)

Thunderstorms slow Oklahoma tornado cleanup

An unidentified man tosses debris as residents sort through their tornado-ravaged homes Wednesday, May 22, 2013, in Moore, Okla. Cleanup continues two days after a huge tornado roared through the Oklahoma City suburb, flattening a wide swath of homes and businesses. (AP Photo/Charlie Riedel)

Thunderstorms slow Oklahoma tornado cleanup

Cody Cannon looks at tornado destruction in his neighborhood from the second floor of his parent's home that once was his bedroom Wednesday, May 22, 2013, in Moore, Okla. Cleanup continues two days after a huge tornado roared through the Oklahoma City suburb, flattening a wide swath of homes…

Thunderstorms, hail slow Oklahoma tornado cleanup

Jesse Edgar takes a break in the shade while helping salvage items at a friend's home Wednesday, May 22, 2013, in Moore, Okla. Cleanup continues two days after a huge tornado roared through the Oklahoma City suburb, flattening a wide swath of homes and businesses. (AP Photo/Charlie Riedel)

$2B in Okla. tornado damage means hard recovery

Jesse Edgar takes a break in the shade while helping salvage items at a friend's home Wednesday, May 22, 2013, in Moore, Okla. Cleanup continues two days after a huge tornado roared through the Oklahoma City suburb, flattening a wide swath of homes and businesses. (AP Photo/Charlie Riedel)

$2B in Okla. tornado damage means hard recovery

An unidentified man tosses a board as residents sort through their tornado-ravaged homes Wednesday, May 22, 2013, in Moore, Okla. Cleanup continues two days after a huge tornado roared through the Oklahoma City suburb, flattening a wide swath of homes and businesses. (AP Photo/Charlie Riedel)

$2B in Okla. tornado damage means hard recovery

An unidentified man tosses debris as residents sort through their tornado-ravaged homes Wednesday, May 22, 2013, in Moore, Okla. Cleanup continues two days after a huge tornado roared through the Oklahoma City suburb, flattening a wide swath of homes and businesses. (AP Photo/Charlie Riedel)

$2B in Okla. tornado damage means hard recovery

Cody Cannon looks at tornado destruction in his neighborhood from the second floor of his parent's home that once was his bedroom Wednesday, May 22, 2013, in Moore, Okla. Cleanup continues two days after a huge tornado roared through the Oklahoma City suburb, flattening a wide swath of homes…

$2B in Okla. tornado damage means hard recovery

Brittany Brown rushes to get aid after finding her grandmother's cat "Kitty" which was buried in tornado rubble for two days at the grandmother's destroyed home Wednesday, May 22, 2013, in Moore, Okla. Cleanup continues two days after a huge tornado roared through the Oklahoma City suburb, f…

$2B in Okla. tornado damage means hard recovery

An unidentified man tosses a board as residents sort through their tornado-ravaged homes Wednesday, May 22, 2013, in Moore, Okla. Cleanup continues two days after a huge tornado roared through the Oklahoma City suburb, flattening a wide swath of homes and businesses. (AP Photo/Charlie Riedel)

$2B in Okla. tornado damage means hard recovery

An unidentified man tosses debris as residents sort through their tornado-ravaged homes Wednesday, May 22, 2013, in Moore, Okla. Cleanup continues two days after a huge tornado roared through the Oklahoma City suburb, flattening a wide swath of homes and businesses. (AP Photo/Charlie Riedel)

$2B in Okla. tornado damage means hard recovery

Jesse Edgar takes a break in the shade while helping salvage items at a friend's home Wednesday, May 22, 2013, in Moore, Okla. Cleanup continues two days after a huge tornado roared through the Oklahoma City suburb, flattening a wide swath of homes and businesses. (AP Photo/Charlie Riedel)

Oklahoma tornado toll: 13,000 homes, schools, hospital; cost: about $2B

Susan Kates salvages items from a friend's ravaged home in Moore, Okla. Many residents were still stunned Wednesday that the tornado, packing winds of at least 200 mph, didn't claim more than the 24 unlucky souls who died.

Okla. tornado damage: Thousands of homes, $1.5-$2B

Susan Kates salvages items from a friend's tornado-ravaged home Wednesday, May 22, 2013, in Moore, Okla. Cleanup continues two days after a huge tornado roared through the Oklahoma City suburb, flattening a wide swath of homes and businesses. (AP Photo/Charlie Riedel)

Okla. tornado damage: Thousands of homes, $1.5-$2B

Claudia Clark clears tornado debris from a cemetery Wednesday, May 22, 2013, in Moore, Okla. Cleanup continues two days after a huge tornado roared through the Oklahoma City suburb, flattening a wide swath of homes and businesses. (AP Photo/Charlie Riedel)

Okla. tornado damage: Thousands of homes, $1.5-$2B

A tornado-ravaged home stands in the distance beyond a twisted street sign Wednesday, May 22, 2013, in Moore, Okla. Cleanup continues two days after a huge tornado roared through the Oklahoma City suburb, flattening a wide swath of homes and businesses. (AP Photo/Charlie Riedel)

Okla. tornado damage: Thousands of homes, $1.5-$2B

A worker removes clears debris from the tornado-ravaged Moore Medical Center Wednesday, May 22, 2013, in Moore, Okla. Cleanup continues two days after a huge tornado roared through the Oklahoma City suburb, flattening a wide swath of homes and businesses. (AP Photo/Charlie Riedel)

Okla. tornado damage: Thousands of homes, $1.5-$2B

Nick Balen holds his daughter Kinley while visiting the destroyed doctor's office where his wife worked and survived Monday's tornado, along with 13 other people, Wednesday, May 22, 2013, in Moore, Okla. Cleanup continues two days after a huge tornado roared through the Oklahoma City suburb,…

Oklahoma tornado damage could top $2 billion

Jeff Thayer, right, and his son Heath look at a tornado-ravaged pickup truck belonging to another son Tuesday, May 21, 2013, in Moore, Okla. A huge tornado roared through the Oklahoma City suburb Monday, flattening entire neighborhoods and destroying an elementary school with a direct blow a…

Oklahoma starts recovering

Sheila Slay looks into the cab of her pickup truck which was thrown more than a quarter mile Tuesday, May 21, 2013, in Moore, Okla. A huge tornado roared through the Oklahoma City suburb Monday, flattening entire neighborhoods and destroying an elementary school with a direct blow as childre…

Oklahoma starts recovering

Residents pass a destroyed car as they walk through a tornado-ravaged neighborhood Tuesday, May 21, 2013, in Moore, Okla. A huge tornado roared through the Oklahoma City suburb Monday, flattening entire neighborhoods and destroying an elementary school with a direct blow as children and teac…

Oklahoma starts recovering

AT&T employees sort through tangled phone lines as they clean up in a tornado-ravaged neighborhood Tuesday, May 21, 2013, in Moore, Okla. A huge tornado roared through the Oklahoma City suburb Monday, flattening entire neighborhoods and destroying an elementary school with a direct blow …

Oklahoma starts recovering

Jim Stubblefield, of Norman, Okla., raises a tattered flag he found while helping his sister salvage items from her tornado-ravaged home Tuesday, May 21, 2013, in Moore, Okla. A huge tornado roared through the Oklahoma City suburb Monday, flattening entire neighborhoods and destroying an ele…

Oklahoma starts recovering

A woman walks past a pile of dead horses that were killed in a tornado a day earlier Tuesday, May 21, 2013, in Moore, Okla. A huge tornado roared through the Oklahoma City suburb Monday, flattening entire neighborhoods and destroying an elementary school with a direct blow as children and te…

Oklahoma starts recovering

Lea Bessinger salvages a picture of Jesus as she and her son Josh Bessinger sort through the rubble of the elder Bessinger's tornado-ravaged home Tuesday, May 21, 2013, in Moore, Okla. A huge tornado roared through the Oklahoma City suburb Monday, flattening an entire neighborhoods and destr…

Oklahoma starts recovering

Zac and Denisha Woodcock look through the rubble of their tornado-ravaged home Tuesday, May 21, 2013, in Moore, Okla. A huge tornado roared through the Oklahoma City suburb Monday, flattening an entire neighborhoods and destroying an elementary school with a direct blow as children and teach…

Search for Okla. tornado survivors nearly complete

Justin Stehan salvages photographs from his tornado-ravaged home Tuesday, May 21, 2013, in Moore, Okla. A huge tornado roared through the Oklahoma City suburb Monday, flattening entire neighborhoods and destroying an elementary school with a direct blow as children and teachers huddled again…

Search for Okla. tornado survivors nearly complete

An unidentified man watches a rain storm from inside the garage of his tornado-damaged home Tuesday, May 21, 2013, in Moore, Okla. A huge tornado roared through the Oklahoma City suburb Monday, flattening entire neighborhoods and destroying an elementary school with a direct blow as children…

Search for Okla. tornado survivors nearly complete

Zac Woodcock salvages items from the rubble of a tornado-ravaged rental home which they own Tuesday, May 21, 2013, in Moore, Okla. A huge tornado roared through the Oklahoma City suburb Monday, flattening an entire neighborhoods and destroying an elementary school with a direct blow as child…

Search for Okla. tornado survivors nearly complete

AT&T employees sort through tangled phone lines as they clean up in a tornado-ravaged neighborhood Tuesday, May 21, 2013, in Moore, Okla. A huge tornado roared through the Oklahoma City suburb Monday, flattening entire neighborhoods and destroying an elementary school with a direct blow …

Search for Okla. tornado survivors nearly complete

Storm clouds build in the distance beyond tornado-ravaged homes Tuesday, May 21, 2013, in Moore, Okla. A huge tornado roared through the Oklahoma City suburb Monday, flattening entire neighborhoods and destroying an elementary school with a direct blow as children and teachers huddled agains…

AP PHOTOS: Devastation, reunion in tornado wake

A woman walks past a pile of dead horses that were killed in a tornado a day earlier Tuesday, May 21, 2013, in Moore, Okla. A huge tornado roared through the Oklahoma City suburb Monday, flattening entire neighborhoods and destroying an elementary school with a direct blow as children and te…

AP PHOTOS: Devastation, reunion in tornado wake

Storm clouds build in the distance beyond tornado-ravaged homes Tuesday, May 21, 2013, in Moore, Okla. A huge tornado roared through the Oklahoma City suburb Monday, flattening entire neighborhoods and destroying an elementary school with a direct blow as children and teachers huddled agains…

AP PHOTOS: Devastation, reunion in tornado wake

Lea Bessinger and her son Josh Bessinger look through the rubble of her tornado-ravaged home Tuesday, May 21, 2013, in Moore, Okla. A huge tornado roared through the Oklahoma City suburb Monday, flattening an entire neighborhoods and destroying an elementary school with a direct blow as chil…

AP PHOTOS: Devastation, reunion in tornado wake

Lea Bessinger salvages a picture of Jesus as she and her son Josh Bessinger sort through the rubble of the elder Bessinger's tornado-ravaged home Tuesday, May 21, 2013, in Moore, Okla. A huge tornado roared through the Oklahoma City suburb Monday, flattening an entire neighborhoods and destr…

AP PHOTOS: Devastation, reunion in tornado wake

Residents pass a destroyed car as they walk through a tornado-ravaged neighborhood Tuesday, May 21, 2013, in Moore, Okla. A huge tornado roared through the Oklahoma City suburb Monday, flattening entire neighborhoods and destroying an elementary school with a direct blow as children and teac…

Power of Moore tornado dwarfs Hiroshima bomb

Storm clouds build in the distance beyond tornado-ravaged homes Tuesday, May 21, 2013, in Moore, Okla. A huge tornado roared through the Oklahoma City suburb Monday, flattening entire neighborhoods and destroying an elementary school with a direct blow as children and teachers huddled agains…

A diversion in the air for 'Today'

Storm clouds build in the distance beyond tornado-ravaged homes Tuesday, May 21, 2013, in Moore, Okla. A huge tornado roared through the Oklahoma City suburb Monday, flattening entire neighborhoods and destroying an elementary school with a direct blow as children and teachers huddled agains…

AP PHOTOS: Devastation, reunion in tornado wake

Storm clouds build in the distance beyond tornado-ravaged homes Tuesday, May 21, 2013, in Moore, Okla. A huge tornado roared through the Oklahoma City suburb Monday, flattening entire neighborhoods and destroying an elementary school with a direct blow as children and teachers huddled agains…

AP PHOTOS: Devastation, reunion in tornado wake

Residents pass a destroyed car as they walk through a tornado-ravaged neighborhood Tuesday, May 21, 2013, in Moore, Okla. A huge tornado roared through the Oklahoma City suburb Monday, flattening entire neighborhoods and destroying an elementary school with a direct blow as children and teac…

AP PHOTOS: Devastation, reunion in tornado wake

Lea Bessinger and her son Josh Bessinger look through the rubble of her tornado-ravaged home Tuesday, May 21, 2013, in Moore, Okla. A huge tornado roared through the Oklahoma City suburb Monday, flattening an entire neighborhoods and destroying an elementary school with a direct blow as chil…

AP PHOTOS: Devastation, reunion in tornado wake

Lea Bessinger salvages a picture of Jesus as she and her son Josh Bessinger sort through the rubble of the elder Bessinger's tornado-ravaged home Tuesday, May 21, 2013, in Moore, Okla. A huge tornado roared through the Oklahoma City suburb Monday, flattening an entire neighborhoods and destr…