Severe storms cause flash floods throughout Northeast

More than 400,000 people lost power across New Jersey, New York and Pennsylvania as severe rain and wind pounded the region.
3:40 | 07/23/19

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Transcript for Severe storms cause flash floods throughout Northeast
It is such a wet morning here in the northeast. It really is. It was quite a night here in New York as well. Take a look at the scene that happened overnight. That woman braving floodwaters in Brooklyn. That's in Brooklyn trying to cross the street. Really rough. Many said they have never seen anything like that. This woman, we're going to call her a highway hero using a traffic cone to help clear out a drain so cars could keep moving again. Those storms knocking out power for more than 500,000 people and linsey Davis is in Howell township, New Jersey, with the very latest. Good morning, linsey. Reporter: Good morning to you, robin. A very wet morning. A lot of concern for the residents here in Howell township and you can see why. Multiple scenes like this are playing out throughout the area. Look, this tree has just smashed not just through the roof but through the side of the house, through the windows. A lot of the interior of the house is exposed. Trees have fallen on power lines, roadways, blocking roadways and police are urging people to stay off the roads if at all possible just trying to convey how dangerous it is out here. This morning, portions of the northeast under water after severe storms pounded the region. Some streets looked more like waterways. Water so high, roadblocks floating down the streets like pool toys. Cars stranded along the roads as the water rises all the way up to the windows. And people forced to wade through the streets. It was shocking to me. I haven't seen water come up like that in this area ever and I've lived here my whole life. Reporter: This woman using a traffic cone to help clear a clogged drain along a New York roadway. In subway stations rushing water creating waterfalls. More than 400,000 people are in the dark across New Jersey, new York and Pennsylvania leaving many stranded in their homes at the tail end of a heat wave. Those storms also bringing damaging lightning. This Connecticut school was hit by lightning which left a hole in the roof and prompted evacuations. This as high winds are likely to blame for this crane collapse in new Brunswick, New Jersey. The entire wrecking ball went through the home and landed right back on the first floor. Reporter: Those winds are also uprooting trees. In monmouth county, this tree crashed through the home and this was the scene in Washington, D.C. Where trees fell into cars and blocked off streets. In Maryland, an elderly man was found dead after a tree fell on him in his driveway and in Michigan, utility crews are racing to restore power. At one point more than 800,000 homes and businesses were without power after severe storms moved through. Police are also telling residents here to help each other out, suggesting that the power could be out for an extended period of time, possibly multiple days. Robin. All right, linsey, quite a scene. Ginger, of course, tracking that severe weather as well as a tropical depression that's on the move in the atlantic right now, ginger. As if we needed more. Yes, that will aid in adding more flash flood threats that we've had. Look at this picture out of Pittsburgh, Pennsylvania, Penn hills. They had 4 1/2 inches very quickly. A car and dumpster that got pushed into the creek. Let's go over here and show you it's still raining from the southeast right through new England. It is that tropical moisture including the depression that is just east of Florida that is going to add to this. That's why we still have flash flood watches up through southern new England, Connecticut, Rhode Island, but watch this. This afternoon and evening as that moisture comes up, you'll have damaging wind threats from 4:00 P.M. On from Raleigh to Fayetteville, Wilmington, you too, George. Thanks. To Washington now where special counsel Robert Mueller

This transcript has been automatically generated and may not be 100% accurate.

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