This is a dangerous storm. Prepare immediately for large destructive hail capable of producing significant damage. People outside should move to shelter inside a strong building, and stay away from windows.

SVROUN The National Weather Service in Norman has issued a * Severe Thunderstorm Warning for... Northeastern Hughes County in southeastern Oklahoma... * Until 700 PM CDT. * At 611 PM CDT, a severe thunderstorm was located near Lamar, moving northeast at 25 mph. THIS IS A DESTRUCTIVE STORM FOR HORNTOWN AND LAMAR!. HAZARD...Baseball size hail and 60 mph wind gusts. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be severely injured. Expect shattered windows, extensive damage to roofs, siding, and vehicles. * Locations impacted include... Calvin, Lamar, and Horntown.