Tropical Storm Henri was the eighth named tropical cyclone in the 2009 Atlantic hurricane season. A weak and disorganized cyclone, Henri formed on October 6 from a tropical wave and moved northwestward for most of its life. Persistent wind shear prevented it from intensifying beyond a weak tropical storm. After peaking in strength on October 7 it began to deteriorate, and weakened to a remnant low on October 8. Henri remained over open waters and did not affect any land areas, although the storm is noted for its sudden formation from a disturbance that was initially not expected to develop.