With convection removed to the northeast, the low-level swirl currently (17/18Z) located just north of Merida, Mexico, probably had tropical origins, but what remains in the southeast Gulf of Mexico is looking like an extratropical system at the tail end of an old front that extends east and northeast into the Atlantic. The system should move northeast across the Florida peninsula late Tuesday and then rapidly up the east coast on Wednesday. Heavy rain showers in south Florida and moderate to heavy showers in central Florida with the strongest activity from late Tuesday afternoon through very early Wednesday morning. Cooler temperatures likely across Florida on Thursday and Friday.
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