5:20 a.m. Monday Update: Several Oklahoma school districts have either delayed classes or moved to virtual learning on Monday as severe storms with a tornado threat move across the state.

The main threats with the storms include tennis ball sized hail and 60 mph wind gusts. The warning is set to expire at 7:30 p.m. WATCH: Tornado lowering in northern Oklahoma Thursday afternoon.

Southern and eastern Oklahoma continue to see severe weather and the occasional tornado warning, and the lone storm from central Oklahoma continued its path northward toward Kansas after dropping ...

It's been 12 years since the historic, deadly Moore, Oklahoma, EF5 tornado. New research has given light as to why no U.S. tornado has achieved an EF5 rating since.

In the short term, that's bad. In the long term, it's even worse.'' Damage estimates from the tornado run as high as $7 million - $3.1 million of which is tied directly to Cordell's electricity.

The National Weather Service said the preliminary survey of damage showed that tornado was at least EF1, with wind speeds between 86 and 110 mph (138 to 177 kph), as was another south of Oklahoma ...

A tornado-producing storm was tearing through southwestern Oklahoma early Monday, with at least one confirmed tornado, the National Weather Service said. The storm was near Granite, a town with a ...