Hurricane Irma strengthens to a Category 5 storm as it approaches northeast Caribbean By FOX 26 Houston staff FOX 26 Houston News Published September 5, 2017 7:07 AM CDT Share Copy Link Email Facebook Twitter LinkedIn Reddit Published September 5, 2017 7:07 AM CDT article SAN JUAN, Puerto Rico (AP) - Hurricane Irma strengthens to a Category 5 storm as it approaches northeast Caribbean on path toward U.S.