A year after Superstorm Sandy, residents along the Atlantic and Gulf coasts should prepare for "an extremely active" 2013 hurricane season, U.S. forecasters say.There is a "70 percent likelihood" that will be three to six major hurricanes this year with winds above 111 mph, according to the 2013 hurricane outlook unveiled by the National Oceanic and Atmospheric Administration's Climate Prediction Center on Thursday.During the six-month hurricane season, which begins June 1, forecasters…See More