Hi just got my tickets for May 14 I have been told by northwest airlines that if it is 29 degrees in hk when i check in the dogs can't board! Same goes for destination cities! As we are leaving hk for good there is no one to take them if this happens. They are not riding in the cabin as the flight is so long. Flat nose dogs 26 degree limit! So i'm a bit nervous about this. I wish I had known about this I would have left earlier. It works for cold temps 2! I considered cargo for them as they could leave earlier but the cost is 22 thousand hkdollars for 2 dogs!!! So wish me luck and be aware of the rule. Any guesses on the weather mid may???? Kathy