[TomGuy]

LIVE 5

Tornado has increased speed to 40 mph, heading for northern OKC area.

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KFOR reports chasers have seen several vehicles rolled.

[Strategerist]

On a message board a variety of meteorologists experienced with severe weather state this has the strongest radar velocity signature they’ve EVER seen.

[caww]

The chasers having hands full keeping up with this....there are many of them out there now...all trying to report what they see....

It's an extremely dangerous storm....it's wobbling...took a hard right before....