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TAMPA, Fla. (WFLA) — A tropical depression is “likely to form” in the next few days as the system in the Caribbean continues to develop, the National Hurricane Center said.

In the 2 p.m. update on Saturday, the system has a 70% chance for development over the next two days and an 80% chance within seven days.

The NHC said gradual development is expected over the next few days as it continues to move northward to northwestward over the central and western Caribbean Sea. Heavy rainfall is expected for areas including Jamaica, Hispaniola, and Cuba this weekend.

“Models show this moving into the central Gulf of Mexico and possibly becoming a tropical depression,” Max Defender 8 meteorologist Eric Stone said. “One other wave has a 10% chance of development near Puerto Rico, but this one is not expected to develop as it moves to the west.”

The NHC said that this second system is expected to be absorbed into the stronger disturbance.

As of 8 a.m., the third wave has formed into Subtropical Storm Patty. However, it is expected to be “short-lived,” the NHC added.

Eric Stone said the system has winds of 50 mph, as it moves to the east-southeast around 7 mph. Patty is expected to move over the Azores with tropical-storm-force winds on Sunday before it weakens and makes landfall in northern Portugal.