Tropical Storm Lorenzo has formed in the central Atlantic Ocean, the 12th named storm of the 2013 hurricane season.
Lorenzo has sustained winds of about 40 mph and is headed east. Forecasters say it is no threat to land.
The storm could strengthen briefly before encountering shearing winds that will likely weaken it in the next two days.
Forecasters on average predicted 16 or 17 tropical storms this season, with half of those becoming hurricanes and four or five of those becoming major hurricanes, packing winds of 111 mph or more.
Thus far, the Atlantic, Gulf of Mexico and Caribbean Sea have produced 12 tropical storms. Two of those developed into brief hurricanes, both of which were Category 1 storms that had no significant impact on the United States.
Hurricane season ends Nov. 30.