I just saw this thread, and sure hope that you can find a warm safe place for these two babies before you leave. Are there any local vets you can appeal to, that may be willing to help you out (discounted) in finding them a home? The weather alone can cause severe frostbite, and kill them at those temps. I'll never forget a skinny little girl I almost hit one bitter cold winter night. Minnie ran right in front of my car, and being a black cat, and with icy roads she was almost a goner. I pulled over, and set a trap out for her, had her in minutes and came home with her. Poor little thing was emaciated, and her ears started to crumble off at the tips from bad frostbite. She did get a wonderful home, and the sweet woman didn't care if Minnie was disfigured. Saying a prayer for you and the two babies that something will work out for all involved. Keep us posted PLEASE!! Jan