...KIRK REMAINS A LARGE AND POWERFUL MAJOR HURRICANE... ...LARGE SWELLS FROM KIRK COULD REACH THE U.S. EAST COAST BY SUNDAY... As of 5:00 AM AST Fri Oct 4 the center of Kirk was located near 22.3, -48.1 with movement NW at 10 mph. The minimum central pressure was 934 mb with maximum sustained winds of about 145 mph.