Low Pressure System in Caribbean Sea Situated by Hispaniola18.1N 69.8W
Aircraft data from NOAA and NASA research missions within the area of disturbed weather over the central Caribbean Sea suggest that the system may not have a well-defined center of circulation.
However, the disturbance is still producing a large and disorganized area of showers and thunderstorms which could cause locally heavy rainfall in portions of Puerto Rico, Hispaniola, Jamaica and Cuba during the next day or two. These rains could cause life-threatening flash floods and mud slides, especially in mountainous terrain.
There is a medium chance (40 percent) that this system could become a tropical cyclone during the next 48 hours as it moves west-northwestward at 10 to 15 mph toward the northwestern Caribbean Sea.