Original: ACE is only officially released for full advisories on tropical systems at or exceeding 34 knots ( 39 mph , 63 km\/h ) or tropical storm strength , so Tropical Depression Sixteen does not have an ACE .
Simplified: ACE is only officially released for full advisories on tropical systems at or exceeding 34 knots ( 39 mph , 63 km\/h ) or tropical storm strength .