The tropical storm has now been upgraded to hurricane status while near the U.S. Virgin Islands. It is expected to threaten Puerto Rico, where a state of emergency has been called. . A hurricane warning is also in effect for the British Virgin Islands. Once Dorian passes through and enters warmer waters around the Bahamas, it may strengthen up to a category 3 hurricane. . At that power, it would then be near Florida by this weekend. According to the National Hurricane Center, Dorian could potentially bring about rainfall in "life-threatening" amounts.