 In addition to the ten systems that became a tropical storm and the other tropical depression , there were a few tropical cyclones that failed to strengthen beyond tropical depression intensity . A weak broad low pressure area formerly associated with a trough developed into a tropical depression well northeast of the Lesser Antilles on April 15 . A barometric pressure of 1 @,@ 005 mbar ( 29 @.@ 7 inHg ) was observed that day . The depression moved northward and then became stationary by April 17 , before degenerating into a trough on the next day . The next tropical depression developed from a northward moving tropical wave over the eastern Gulf of Mexico on July 31 . Although the depression continued northward , it cannot be determined if the system made landfall in the Florida Panhandle before dissipating on August 2 . Tampa recorded a 5 @-@ minute sustained wind speed of 34 mph ( 55 km / h ) on July 31 . By August 13 , another tropical depression formed from area of disturbed weather well offshore the Mid @-@ Atlantic . The system moved rapidly northeastward and became extratropical early on August 14 . It may have been a tropical storm , based on barometric pressure of 995 mbar ( 29 @.@ 4 inHg ) observed by a ship shortly after extratropical transition . On September 16 , a trough of low pressure developed into a tropical depression over the western Gulf of Mexico . Unfavorable conditions caused the depression to dissipated by the following day . 
