Irma has strengthened to an "extremely dangerous" Category 5 hurricane, the National Hurricane Center said in its advisory at 7:45am AST. According to the Hurricane center, NOAA and Air Force hurricane hunter aircraft data indicate Hurricane Irma has intensified into an "extremely dangerous" Category 5 hurricane on the Saffir-Simpson Hurricane Wind Scale with maximum winds of 175 mph (280 km/h) with higher gusts. As of this moment, the hurricane is located 270 miles east of Antigua, moving west at 14 mph. States of emergency were declared in Puerto Rico, the U.S. Virgin Islands and all of Florida while people on ... (full story)