8 a.m. Monday update:
The National Hurricane Center has called off a planned flight Monday by a U.S. Air Force Reserve hurricane hunter plane to investigate a broad but disorganized low pressure system over the central and western Caribbean. The flight will take place Tuesday, if necessary, according to forecasters.
At 8 a.m. Monday the system was located about 130 miles south of Grand Cayman.
The chances of the system becoming a tropical cyclone during the next 48 hours remained at 40 percent on Monday.
Regardless of development, the system could cause flash floods and mud slides over portions of Haiti and Jamaica as it moves slowly toward...