萨菲尔-辛普森飓风等级
After JMA upgraded Lekima to a typhoon early on October 22, the system began to undergo rapid deepening, developing a well-defined eye with a symmetric eyewall. Late on the same day, JTWC upgraded the system to a super typhoon with Category 5 strength on the Saffir–Simpson hurricane wind scale, owing to dual-channel outflow.