Tornados hit Oklahoma City

Tornadoes rolled in from the prairie and slammed Oklahoma City and its suburbs Friday, trapping people in their vehicles as a storm swept down an interstate highway while commuters tried to beat it home.

A mother and her baby were killed, but meteorologists who had warned about particularly nasty weather said the storm’s fury didn’t match that of a deadly twister that struck suburban Moore last week. Violent weather also moved through the St Louis area, ripping part of the roof off a suburban casino.

Friday’s broad storm hit during the evening rush hour and stuck around, causing havoc on Interstate 40, a major artery connecting suburbs east and west of the city, and dropping so much rain on the area that streets were flooded to a depth of 4 feet.

To the south, a severe storm with winds approaching 80mph rolled into Moore, where a top-of-the-scale EF5 tornado killed 24 on May 20.

Rick Smith, the warning coordination meteorologist for the National Weather Service at Norman, said in a text message relayed by the Storm Prediction Centre that Friday’s storm was “not even close” to causing the type of destruction like the one that hit Moore.

The US averages more than 1,200 tornadoes a year and most are relatively small. Of the 60 EF5 tornadoes to hit since 1950, Oklahoma and Alabama have been hit the most - seven times each.

Heavy rain and hail hampered rescue efforts in Oklahoma City. Frequent lightning roiled the skies well after the main threat had moved east. Highways and streets were clogged late into the night as motorists worked their way around flooded portions of the city.

Oklahoma Highway Patrol Trooper Betsy Randolph said troopers found the bodies of a woman and an infant near their vehicle. Randolph said it’s not known if the woman was driving into the storm when it hit around 7pm Friday.

Emergency officials reported that numerous injuries occurred in the area along I-40, and Randolph said there were toppled and wrecked cars littering the area. Troopers requested a number of ambulances at I-40 near Yukon, west of Oklahoma City.