Powerful tornadoes strike Texas

At least two tornadoes ripped across northern Texas Tuesday, flipping huge trucks like toys, tearing off roofs and grounding flights but apparently causing only minor casualties.One twister touched down in a parking lot full of tractor-trailers -- large trucks that move shipping-container sized cargos, and television images showed several containers twisting and flying dozens of feet up into the air.It was raining and hailing like I said... and then all of a sudden, the rain and hail ceased... thats when we saw the tornadoes touch down, witness Jonathan Cook told CNN.The resident of Burleson said he dashed out of the bank when he saw hail the size of nickel coins start falling and leapt back into his truck to get it to the cover of a nearby gas station.We were just under the gas pump awning, hoping it didnt come our way. We had a good visual of it, but we really had nowhere to go... we just had to run in the gas station.Texas residents appeared mostly to have heeded warnings as the National Weather Service sent out an alert saying Tornado Emergency. Two tornadoes are currently affecting the DFW (Dallas-Fort Worth) Metroplex. Take cover nowA tornado watch was issued for the Dallas-Fort Worth area -- home to more than six million people -- until 8:00 pm (0100 GMT Wednesday).On his drive home Cook said there were large trees, large tree limbs, a lot of leaves scattered across the highway, and tree limbs on the highway, as well as many roofs taken off homes.The tornadoes caused major damage in several metropolitan areas, including Kennedale, Arlington and Lancaster, local media reported.The area utility company, Oncor, reported hundreds of outages affecting tens of thousands of customers in the metro area. Dallas police warned residents to stay away from dangling power cables. But despite the powerful storm, casualties appeared to be minimal.At this point, there are no major injuries reported, Arlington Mayor Robert Cluck said in a statement.