The NWS has issued a Severe Thunderstorm Warning for northwestern Cleveland, Oklahoma and southern Logan counties through 9:30 p.m.

Hazards include

Hail to the size of quarters

Wind gusts up to 60 mph

Please see the linked text of the warning for more detail about the thunderstorm currently over central OKC and also the one developing near Norman.

Here is a link that might be useful: Text of Warning