Flash Flood Watches in Effect Across Five State

Emergency crews using buses, boats and Humvees to help residents evacuate.
2:34 | 10/26/15

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Transcript for Flash Flood Watches in Effect Across Five State
A horrible incident all the way around. Ryan, thank you. Flash flood watches in five states along the gulf coast. Texas getting the worst of it. You see it there. Rushing water on the streets of San Antonio. The water coming up so quickly in Houston, this car was caught. Its headlights still on. Here's rob Marciano. Reporter: Tonight, Texas under water. Parts of the lone star state getting more than 20 inches of rain. This neighborhood in weslaco submerged. We've never been flooded here. Reporter: Emergency crews using buses, boats, even hum-vees to help residents evacuate. Driving is treacherous. They're pulling the patient out at this time. Reporter: More than 70 rescues south of Dallas, including this man and his dog with seconds to spare. Floods even de-railing the cars on this freight train. Many bayous here in Houston near or over the top of their banks. Low-lying roads and highways like this one shut down because of the high water. Cars like those two back there getting swallowed by all this rain. In Houston, this man searching for his submerged car, getting stuck when the water was just calf-deep. I just stood there and watched my car slowly disappear. Reporter: Trying to attach a chain so the tow truck could pull it out, ultimately giving up. Outside Houston, this funnel cloud. And two reported tornadoes. I looked out the window and all you saw was a whirlwind of trash. Reporter: Winds ripping off roofs, toppling fences. And in galveston, winds gusting over 50 miles an hour, waves up to 10 feet high. Causes this empty tanker to run aground. The rain has let up a little bit, but continues to come down. And winds, picking up with 69 miles an hour in Louisiana. And on that point, what's next for the track? It's gaining strength. As far as the winds are concerned. It's going to move to the east slowly. It's a slow mover. The low is right around lake Charles, Louisiana. Will scoot across the basin, and wind and flood advisories. That gives you an idea of the scope of the system. The timing of it, some of the heavier rains will be in eastern Louisiana and Alabama by 7:00 A.M. Tomorrow. By 7:00 P.M., we're looking for it to extend to the Florida panhandle. The rains in New Orleans, and Pensacola could see five more inches of rainfall. Quite a system, Tom. True. Thank you, rob.

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

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