Did you know?
Cone map does not convey forecast uncertainty.
Cone size is the 5-year average NHC forecast position error.
Slow movement of #Debby makes cone appear different than other storm cones but same size used all year.
Cone made: Forecast position points, draw 5-year average error circles, connect to make smooth cone shape.

That said, NHC forecast typically rival any single computer model during a season.