Disturbance 1. Disorganized showers and thunderstorms continue over the Bay of Campeche and southern Mexico in association with a broad low pressure area. This system is expected to move little during the next day or two but should begin to move northward by Thursday, and a tropical depression is likely to form late in the week when the low moves across the central or northwestern Gulf of Mexico. Formation chance through 48 hours is at 20% and formation chance through 5 days is at 70%.
Disturbance 2. Tropical Storm Bill is expected to be a short-lived tropical storm and dissipate on Wednesday. It is located 240 miles southeast of Nantucket, Massachusetts with sustained winds at 50 mph. There are no coastal watches or warnings in effect.
Disturbance 3. A tropical wave a few hundred miles south of the Cabo Verde Islands should be slow to develop as it moves westward. Formation chance through 48 hours is at 10% and formation chance through 5 days is also at 10%.