Hurricane Maria, an "extremely dangerous" storm, made landfall on the small island of Dominica Monday night as a Category 5 storm, then weakened ever-so-slightly to a Category 4, the U.S. National Hurricane Center (NHC) said early Tuesday.

After battering Cuba early Saturday and leaving more than 20 dead across the Caribbean, a dangerous Hurricane Irma is taking aim at south Florida with winds nearing 160 mph as another hurricane follows close behind.