A hurricane warning was issued for the entire southern Florida peninsula Saturday ahead of Hurricane Wilma and the Florida Keys were under a mandatory evacuation order. Meanwhile, a record 22nd tropical storm formed in the Caribbean Sea. At 11 p.m. EDT (0300 GMT), Wilma was moving north near 3 mph (4.8 kph) with maximum sustained winds near 100 mph (160 kph). It was located about 50 miles (80 kilometers) north of Cancun, Mexico or about 375 miles (600 kilometers) west-southwest of Key West. A hurricane warning was in effect from Longboat Key on the Gulf Coast to Jupiter Inlet on the Atlantic, including the Florida Keys. The Dry Tortugas and Florida Bay were also under hurricane warning. A hurricane watch remains in effect from Florida's east coast north of Jupiter Inlet to Titusville. A hurricane warning means that hurricane conditions are expected within the next 24 hours, while a hurricane watch means that hurricane conditions are possible within 36 hours.