After moving away from the island on the morning of November 21, the JTWC upgraded Nina to a typhoon at 1200 UTC, with the JMA following suit early on November 22.
After moving away from the island on the morning of November 21, Nina's intensification rate and forward motion slowed. Nevertheless, the JTWC upgraded Nina to a typhoon at 1200 UTC, with the JMA following suit early on November 22.