Just to level set, the 2am advisory had Helene at 85mph and 971mb. Now, Helene is at 125mph and 951mb, with the deepening rate increasing.
Despite all the conversation today, we have objectively met the definition of rapid intensification and done so in 14 hours.
How far it goes, who knows, but Helene will be added to our list of rapidly intensifying tropical cyclones on final approach.