Giant -- -- severe weather from the midwest tonight all the way to the East Coast there could be some major flash flooding the forecast in a moment. But first new images tonight of a new and massive... See More
Giant -- -- severe weather from the midwest tonight all the way to the East Coast there could be some major flash flooding the forecast in a moment. But first new images tonight of a new and massive twister. This time you can see what appears to be for funnels inside this sweeping tornado. It was terrifying for so many and ABC's Steve -- -- with the pictures. This was the moment across the prairies of South Dakota when families here -- -- they had to run for cover -- To immigrant who once -- another set of twin tornadoes we're moving into western to springs. When it hit fifty miles east you can see for smaller whirlwind circle inside one of the tornadoes these were pictures family stood with their cell -- Early reports -- the winning streak -- 127. Miles an hour. Damaging more than a dozen homes and destroying businesses. -- -- they lost everything. It was a tearful reunion today for this large -- This is what the house looked like before nearly a hundred years old. It hurts to see what little the tornado left them home. -- -- -- -- The severe weather stretched -- the lightning setting homes on fire in Minnesota. The high winds bringing down trees over homes and Ohio and the nation's capital. In Chicago 14100 passengers stranded by the weather had to sleep at O'Hare airport we traveled a lot. We have never had an excuse -- -- that this is unique. Here in the prairie they're having to clean all of this up on top of at all there's no power the utility crews are out trying to repair those power lines tonight. David Steve thank you could be a long time before that power is back on meantime fourteen million Americans in the path of severe weather tonight. It just look at the heavy -- flash floods washing out towns across the midwest tonight. In Minnesota scenes like this one drivers plowing through deep waters there on the roads. However -- chief meteorologist Cecily Tynan from Philadelphia's top station WP BI and -- -- -- you -- -- dealing with really severe weather over the last 24 hours but now you're watching another part of the country tonight what he's seen. That's right David really the focus of severe weather across three areas tonight the strong storms that moved through Philadelphia early this morning has shifted down to the south including Roanoke and Riley. The upper midwest again under the gun from Minneapolis to Kansas City and there's another area over northern Texas. We're looking at the potential for large hail damaging winds and flash flooding a big concern David I want to show you the area of flooding and it's a very broad area there's a stationary. Front that's. Really draped across. The upper midwest into the mid Atlantic along this front were looking at the potential. Three to four inches of rain could cause flash flooding Minneapolis already dealing with record rainfall.
This transcript has been automatically generated and may not be 100% accurate.