Updated at 2:15 a.m. ET Wednesday:
The most powerful Atlantic Ocean hurricane in recorded history made its first landfall in Northeast Caribbean islands. The eye passed over Barbuda around 1:47 a.m, according to the National Weather Service.
Updated at 11:10 p.m. ET
"Hurricane Irma has intensified into an extremely dangerous Category 5 hurricane," the National Hurricane Center says, citing the latest data from NOAA and Air Force hurricane hunter aircraft.