Tropical Storm Lorenzo was, in terms of wind, the weakest named tropical cyclone of the 2001 Atlantic hurricane season and last of four named storms to form in October. The 12th tropical cyclone of the season, Lorenzo originated in an upper-level trough that persisted over the eastern North Atlantic Ocean on October 26, the second storm of the season to form from a baroclinic system. Throughout its existence, Lorenzo stayed out to sea, never threatening any land areas. Upon forming, it was predicted to be a moderate tropical storm with winds of 60 mph (95 km/h), though it only reached a peak of 40 mph (60 km/h) on October 30. The storm's remnants were absorbed by a frontal system on October 31.