Forecasters say Tropical Storm Peter has formed over the Atlantic Ocean early Sunday.
The U.S. National Hurricane Center in Miami says, as of 11 a.m. Sunday, the system is centered about 700 miles east of the northern Leeward Islands.
It's moving to the west-northwest at 17 mph with maximum sustained winds of 45 mph.
Peter is expected to bring rain to the islands including the Virgin Islands and Puerto Rico through Tuesday.
No coastal watches or warnings are in effect.
Meanwhile, another tropical depression has formed over the far eastern tropical Atlantic Ocean.
Tropical depression Seventeen is located about 315 miles west-southwest of the southernmost Cabo Verde Islands.
Forecasters say it is expected to become a tropical storm later Sunday or on Monday.
And Odette, which became a tropical storm Friday, was downgraded to a post-tropical cyclone Saturday afternoon.