Sky Jet,
Almost ALL suitable alternates around NRT has similar weather and winds at that point in time. The typhoon was supposed to last out only until 2300z initially but carried on for a couple of hours more than expected. That sometimes spoils the plan for you!
Of course a go around is always an option. But where to my friend. It was a wide spread typhoon that out lived its expectancy.
Just a bad day I guess..
With a decent ending.
