An area of low pressure developed in the Caribbean Sea on September 15th, and it moved out into the Pacific before gaining in organization. On September 17th, the NHC reported that Tropical Depression Twelve-E had developed to the south of Mexico, which began to move to the west-northwest, becoming a tropical storm and being named Kay at 0000 UTC on the 18th. Beginning at 1800 UTC, Kay began an extreme deepening phase, and within the next 24 hours, the system had gone from 60 mph to 200 mph, breaking Hurricane Patricia's record the year before, and beginning to head for the Hawaiian Islands as well as being able to maintain category 5 strength for a record 5.75 days, also breaking Typhoon Nancy's record of 5.5 days back in 1961. On September 26th, Kay made landfall on two of the Hawaiian I