Coriolis Tropical Cyclone Scale (CTC Scale)

The Coriolis Tropical Cyclone Scale or CTC Scale or (CTCS) is a scale based off of the Saffir-Simpson Wind scale. The CTC sale was developed by DarrenDude and is the official scale of the International Coriolis Observatory of the North Atlantic or ICON.

Scale Rating
CTC Scale (Used by ICON)

Tropical Depression = 24-39   mph

Tropical Storm = 40-57   mph

Severe Tropical Storm = 58-74   mph

Minor Hurricane       =CTC Scale (Used by ICON)

Tropical Depression   = 24-39   mph

Tropical Storm        = 40-57   mph

Severe Tropical Storm = 58-74   mph

Minor Hurricane = 75-110  mph

Moderate Hurricane = 111-145 mph

Major Hurricane = 146-180 mph

Extreme Hurricane = 181+    mph 75-110  mph

Moderate Hurricane    = 111-145 mph

Major Hurricane       = 146-180 mph

Extreme Hurricane     = 181+    mph