The National Weather Service in Pleasant Hill has issued a severe thunderstorm warning for southwestern Carroll County and northeastern Lafayette County until 3:45 p.m. Wednesday. Storms were located about five miles south of Norborne shortly after 3 p.m. The system is moving east at about 15 miles per hour. Quarter size hail and strong winds are possible. Forecasters said torrential rainfall is occurring with this storm and could lead to flash flooding.