USA TODAYHurricane Matthew strengthens into Category 5, still a US threatUSA TODAYMatthew strengthened to a Category 5 major hurricane in the Caribbean late Friday night and remains a dangerous threat to Jamaica, Haiti, Cuba and the Bahamas over the next few days. The storm could still impact the U.S. East Coast by next week after ...Hurricane Matthew strengthens to rare Cat 5 stormMiami HeraldForecasters upgrade Matthew to Category 5 storm, first in Atlantic since 2007Fox NewsStrengthened Hurricane Matthew threatens Jamaica, CubaCNNBBC News -Reuters -The Weather Channel -Huffington Postall 1,227 news articles »