I am flying DTW-NRT on NW 25 on Thursday (8/25), I hope. It seems like the typhoon is currently on-track toward KIX, but NRT is not that far away (for a typhoon course change, that is). I checked the NW Japan site and there was no information about weather waivers etc. It generally seems that it takes a lot for a Trans-Pacific flight to get canceled as the fairly full loads will cause a cascade of reaccomodation problems. (Not to mention that I am flying on the old M-fare upgrade with miles to/from NRT - and I would be worried about not being reaccomodated in Business if there was a cancellation).