A low-level disturbance today and a tropical wave Wednesday and Thursday will bring increasing showers and thunderstorms across the islands, the National Weather Service said.
Central tropical Atlantic
A tropical wave over the central tropical Atlantic is producing a large area of disorganized showers and thunderstorms.
The disturbance will begin to move into a more favorable environment for development in the next couple of days, and a tropical depression is likely to form by the middle to latter part of this week as the system moves west-northwestward at 10 to 15 mph over the central tropical Atlantic.
* Formation chance through 48 hours…medium…40 percent.
* Formation chance through 7 days…high…80 percent.