favorable conditions allowed Preventing_or_letting the depression to become Becoming tropical storm Catastrophe debby early on august 20 , and further strengthening Cause_change_of_strength into a hurricane Catastrophe occurred Coming_to_be 24 hours later .

tropical storm debby caused Causation extensive flooding Motion in north florida and central florida during late june 2012 .

the formation of debby marked Recording the earliest formation on record Recording of the fourth named Name_conferral storm within the atlantic basin until this record Recording was beaten Bodily_harm by tropical storm Catastrophe danielle in 2016 .

forming Coming_to_be as a tropical depression , it headed Self_motion northwestward , and eventually strengthened Cause_change_of_strength into tropical storm Catastrophe debby the following day .