Hurricane Jose, which is following Hurricane Irma, has strengthened into a Category 4 storm with sustained winds of 150 mph. A fourth hurricane, Katia, is forecast to hit Mexico follows it. Jose is currently projected to move northwest, putting a hurricane watch in effect for Antigua, Barbuda, Anguilla, St. Martin, and St. Barthelemy—all of which have all already been battered by Hurricane Irma days ago.