FEWW New Hurricane Scale

FEWW New Hurricane Scale Makes Hurricane Classification More Meaningful!

FEWW’s New Hurricane Scale is based on the Saffir-Simpson Hurricane Scale and provides a more detailed definition of hurricane forces.

Size Description

To make the classification of tropical cyclones even more descriptive, FIRE-EARTH recommends the addition of following suffixes for storm size to denote the category:

• Midget hurricanes (m). With the average radius from the storm’s center of circulation to its outermost closed isobar (ROCI) in four quadrants measuring less than two degrees of latitude [222.2 km or 138.1 miles.]

• Small. Small Hurricanes (s).  ROCI measuring between 2 and 3 degrees of latitude [222km< ROCI< 333km]
• Regular. Average Hurricanes (r). ROCI measuring between 3 and 6 degrees of latitude [333km< ROCI< 667km]
• Large. Large Hurricanes (g). ROCI of between 6 and 8 degrees of latitude [667km< ROCI< 889km]
• Monster. Very Large Hurricanes (x). ROCI of larger than 8 degrees of latitude [ROCI> 889km]

Example: Hurricane GRETA, with ROCI of 960km, the largest ever recorded Atlantic hurricane, which reached a maximum sustained winds of about 225km/h on November 5, 1956 may be represented as a Monster hurricane, or 4Ax category hurricane on the FEWW New Hurricane Scale.