Associated Press (via NY Daily News):
The most powerful Atlantic Ocean hurricane in recorded history made its first landfall in the islands of the northeast Caribbean early Wednesday, churning along a path pointing to Puerto Rico, the Dominican Republic, Haiti and Cuba before possibly heading for Florida over the weekend.
The eye of Hurricane Irma passed over Barbuda around 1:47 a.m., the National Weather Service said. Residents said over local radio that phone lines went down. Heavy rain and howling winds raked the neighboring island of Antigua, sending debris flying as people huddled in their homes or government shelters.
CNN notes that the eye of the storm was bigger than the island of Barbuda.
The forecast is for the storm to swing north toward Florida, as you can see in the National Hurricane Center cone illustration above. A South Florida strike is forecast four or five days from now.
FEMA – the Federal Emergency Management Agency – has information on how to prepare for a hurricane.