Typhoon Kinna, known in the Philippines as Typhoon Neneng, was a mid-season typhoon that struck Japan during 1991. An area of disturbed weather formed within the Western Pacific monsoon trough during early September 1991. The disturbance was upgraded into a tropical depression on September 10 after an increase in organization. Tracking northwest due to a weak subtropical ridge to its north, the depression strengthened into a tropical storm at 00:00 UTC on September 11. Later that day, Kinna was upgraded into a severe tropical storm. Following the development of a poorly defined eye, Kinna was upgraded into a typhoon on September 12. The cyclone turned north in response to a trough and passed through Okinawa as a minimal typhoon. Typhoon Kinna obtained peak intensity on September 13, but th