2015 Atlantic hurricane season reanalysis project

http://www.nhc.noaa.gov/archive/xgtwo/gtwo_archive.php?current_issuance=201506142320&basin=atl&fdays=2

Tropical Storm Ana
Subtropical Depression One developed 13 hours earlier than the advisories were initiated

Tropical Storm Bill
Tropical Depression Two developed 26 hours before the first advisories were initiated

Tropical Storm Claudette
Developed 6 hours earlier than the advisories were initiated

Unnamed Tropical Storm
Tropical Depression Three developed at 1PM UTC, and existed until 7AM UTC the following day

Hurricane Danny
No changes to the timings have been made

Tropical Storm Erika
Tropical Depression Five developed at 7PM UTC on August 23