An Air Force reconnaissance plane recently measured a peak SFMR wind of 143 kt and then 138 kt during this mission's eye penetrations. Furthermore, the satellite presentation has improved considerably with a distinct eye surrounded by a ring of very deep convection. The raw objective T-numbers from UW-CIMSS have been above 7.0 since 2100 UTC. On this basis, the initial intensity has been increased to 140 kt, making Matthew a Category 5 on the Saffir-Simpson Hurricane Wind Scale. This is the first Category 5 hurricane in the Atlantic basin since Hurricane Felix in 2007.
