…BERTHA RESUMES A NORTHWESTWARD MOTION… …TROPICAL STORM WATCHES AND WARNINGS REMAIN IN EFFECT FOR PORTIONS OF THE NORTH GULF COAST… As of 4:00 AM CDT Tue Jul 21 the center of Bertha was located near 28.7, -86.4 with movement NW at 5 mph. The minimum central pressure was 998 mb with maximum sustained winds of about 50 mph.
