Tropical Storm Zeta formed Friday in the eastern Atlantic Ocean, another installment in a record-breaking hurricane season that officially ended last month.

Zeta formed Friday about 1,000 miles south-southwest of the Azores islands, according to an advisory posted on the National Hurricane Center's Web site.

The center said it would send out a full advisory later Friday. It was not immediately known if this is the latest a tropical storm has formed in the Atlantic. Tropical storms have winds of at least 39 mph.