Nomad, Snowhunter!
Nem a IV-es fokozat a JWTC-nél a super typhoon hanem a 150 mph feletti (241 km/h) Szóval ami már amúgy is majdnem V-ös a S-S skála szerint is.
"In the Northwest Pacific, a typhoon that reaches 150 mph (241 km/hr) is called a Super Typhoon. The damage caused by a super typhoon is equivalent to a strong Category 4 or Category 5 hurricane, depending on how strong the typhoon is."