If outdoors, consider seeking shelter inside a building.

At 752 AM CDT, Doppler radar was tracking a strong thunderstorm near Lake Lawtonka, moving southeast at 25 mph. HAZARD...Wind gusts of 40 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... Lawton, Cache, Medicine Park, Fort Sill, Meers, Lake Lawtonka, Wichita Mountains Wildlife Refuge, Mount Scott, Doris Campground, and The Visitor Center.