Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. This storm may intensify, so be certain to monitor NOAA Weather Radio, local radio stations or available television stations for additional information and possible warnings from the National Weather Service.

At 403 PM CST, Doppler radar was tracking a strong thunderstorm near Meers, moving northeast at 25 mph. HAZARD...Wind gusts up to 50 mph and penny size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. Locations impacted include... Medicine Park, Meers, Lake Lawtonka, Boone, southern Fort Sill, Wichita Mountains Wildlife Refuge, Mount Scott, Doris Campground, and The Visitor Center.