Simplify the following text for a Grade 8 native English-speaking person.
Original: Soon after it became a tropical storm on October 9 near Madeira , with a ragged eye already present , the NHC officially named it Tropical Storm Vince and began to issue advisories . At the time there was some uncertainty as to whether Vince was tropical or subtropical but , in his post-season analysis , forecaster James L. Franklin of the NHC conceded that Vince had formed as a subtropical storm and had evolved into a tropical storm before it was named .
Simplified: The NHC named it Tropical Storm Vince , but at the time , it was not known whether Vince was tropical or subtropical .