 What could be a catastrophic storm, a category four hurricane, is bearing down on the Caribbean's windward islands, and the BBC's Will Grant standing storm watch. Communities across the Caribbean are readying themselves for some difficult hours ahead. In Barbados, thousands have heeded the government's advice to board up their homes and shutter their businesses. The island is the first in the region to feel the impact of Hurricane Beryl, which has intensified to a category four storm as it moved west.