Hurricane Dorian is strengthening as it moves west toward the Bahamas and Florida. The National Hurricane Center in Miami says maximum sustained winds increased Saturday morning to 145 mph (230 kph), up from 140 mph (220 kph). As of about 8 a.m. EDT Saturday, the Category 4 storm was 280 miles (450 kilometers) east of the northwestern Bahamas and 445 miles (715 kilometers) east of West Palm Beach, Florida.
