A tropical weather system rapidly strengthened into Hurricane Michael off Mexico's Yucatan Peninsula, and forecasters said it was moving Monday into the Gulf of Mexico where warm waters would continue to fuel its development.

Michael could strengthen into a major hurricane with winds topping 111 mph (178 kph) by Tuesday night before an expected strike on Florida's Panhandle or Big Bend, according to the National Hurricane Center.

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Spaghetti models of Hurricane Michael

Each line represents a computer model's best "guess" of where the center of the storm will go. Together, they look like "spaghetti." Remember, impacts from a tropical system can and do occur miles away from the center.