From Daily Mail: Hundreds of flights have been cancelled and tens of thousands of homes are without power after huge tornadoes roared through Texas today – so powerful that they threw trucks across the sky.

Weather service advisories issued today said storm spotters and radar revealed separate tornadoes south of Dallas and Fort Worth, as well as Arlington and Lancaster. Incredible news footage of the twister shows a massive funnel cloud and tractor trailers being launched above the area.

One tornado tore through the Flying J Truck Plaza in Dallas, grabbing two trailer trucks and tossing them, said truck driver Michael Glennon, who caught the destruction on his video camera as debris swirled through the air.

Click here to watch news video of tractor trailers flying through the air.

He said: ‘The second trailer is ripped to pieces and thrown 50 to 100 feet into the air’. At the nearby Omni Mandalay Las Colinas hotel, tornado sirens sounded, alerting guests to get to safety. ’The hotel has not been evacuated but we do have guests under cover,’ said a telephone receptionist at 421-room hotel.

The storm is believed to have leveled several homes, and tens of thousands of others are without power. source – Daily Mail UK

From NBC: Severe detached thunderstorms in the Metroplex spawned at least two tornadoes that injured several people, damaged homes and tossed cars and big-rigs into the air Tuesday afternoon.

The storm activity started with storms firing up to the west of the Metroplex late Tuesday morning.  By 11 a.m., the first cells began developing in the western counties.

At about 12:30 p.m., a Tornado Watch was issued for all of the Metroplex until 8 p.m.  Just a few minutes later the first rotation was spotted on radar in Johnson County.

For the next two hours funnel clouds were spotted dropping out of the clouds in various parts of the Metroplex, but in two locations tornadoes touched down and stayed on the ground for extended periods of time as one plowed through Johnson and Tarrant counties and a second through Ellis and Dallas counties.

At 2:45 p.m., another Tornado Warning was issued for east and north Arlington, Euless, DFW Airport, Irving and parts of Dallas including the west side and Park Cities.  This warning will stay in effect until 3:30 p.m. source – NBCDFW