Labrador Current is a cold ocean current that rises in the Arctic Ocean. After waters from Hudson Bay join the current, it flows along the shores of Labrador to a point near the island of Newfoundland, where it meets the Gulf Stream. The influence of the Labrador Current is felt as far south as New England. The harbors of Labrador are blocked with ice for about half the year, partly because of this cold current. But the ports of the United Kingdom and Ireland, which have the same latitude as Labrador, remain open to shipping throughout the year. When cold air above the Labrador Current meets the warm, moist winds above the Gulf Stream, heavy fogs form off the coast.