An area of cloudiness was first spotted on January 4, later developing into the first depression of the season on January 6. The depression became a tropical storm and was subsequently named Agatha. Agatha gradually intensified into a hurricane on January 8, the first of the season. Agatha then sharply turned east as a cold front picked the storm up, Agatha started to rapidly intensify into a major hurricane on the 10th. Continuing to be aided by strong baroclinity from the frontal system, Agatha became a category 5 storm less than 18 hours. Agatha later collapsed and became extratropical later on the 11th.
A decaying frontal trough, combined with a small circulation from an decaying extratropical system became the season's second tropical depression on January 14. Being in an enviroment with 15 knots of shear the depression became a tropical storm and was named Brionne, The small system began to be steered east by an extratropical system. Brionne suddenly became a hurricane on January 16, Making it the first time 2 recorded hurricanes in January in the history of the basin. The extratropical system later absorbed Brionne on January 17.
The tail end of a front acquired enough tropical characteristics to be classified as a tropical depression on Februrary 8. Despite holding onto some hybrid characteristics, such as being attached to the front, the depression became a tropical storm 6 hours after forming. Charley continues to swiftly move east while still being attached to the front, It wasn't until Feburary 10 when Charley completely deattached from the front. Operationally it was described as it was becoming subtropical. Charley didnt feature any notable change in intensity until Feburary 16, when it became the 3rd hurricane of the season. Then Charley started to move south in response to an anticyclone forming in the area, intensification soon ensued and Charley became the season's second major hurricane. However, an eyewall replacement cycle caused Charley to weaken. The storm fluctuated between a tropical storm and a hurricane for the next 2 days, Until it became a hurricane again on Feburary 22 as it was picked up by an strong extratropical system, Charley later became a major hurricane again as it was absorbed into the system.
An rapidly-developing low pressure area became a tropical depression on Feburary 11, earning the name Donna just 6 hours later. Donna also became a hurricane just 12 hours after being named, The rapidly intensifying storm became a category 4 storm hours later. Donna started to weaken due to the effects of colder water and stable airmass, Donna became post-tropical on Feburary 13.
An area of convection was first spotted on late Feburay 27, later becoming a tropical depression on March 1. The depression became a tropical storm and was named Eric, Eric then peaked as a 65mph tropical storm as it became extratropical the next day.