Lisa and Martin may have company in the Caribbean

From the National Hurricane Center:

East-Southeast of Bermuda: A weak non-tropical area of low pressure located several hundred miles east-southeast of Bermuda is producing a few disorganized showers and thunderstorms well to the east of its center. Any tropical or subtropical development of this disturbance should be slow to occur during the next couple of days while it moves little through today and then turns westward over the weekend. The system is forecast to merge with a larger low pressure area developing to its southwest by the end of the weekend, and further development is not anticipated once this occurs.

Formation chance through 48 hours...low...10 percent

Formation chance through 5 days...low...10 percent

Southwestern Atlantic: A large non-tropical low pressure system is expected to develop this weekend across the northeastern Caribbean Sea and southwestern Atlantic. The system is expected to initially be very broad and disorganized, but environmental conditions could support gradual subtropical or tropical development beginning early next week while it moves generally northwestward or westward over the southwestern Atlantic.

Formation chance through 48 hours...low...near 0 percent

Formation chance through 5 days...low...30 percent