Tropical Storm Otto was at 23.8N, 68.0W and drifting towards the north at 2 mph Thursday with winds of 60 mph and a steady motion to the northeast and a increase in forward speed was forecast for Thursday night. On its forecast track, it should stay to the east of the Bahamas and the Turks and Caicos Islands. Some additional strengthening is expected and Otto may become a hurricane during the next 48 hours. A surface low is producing thunderstorms over the west-central Caribbean. Development of the disturbance should be slow to occur as it moves south at 10-15 mph. There is a 10 percent chance the system could become a tropical storm during the next 48 hours.