Angie my heart is beating fast just reading this. I can imagine how you are feeling!!! Gosh I am hoping that Buddy and Sierra are somewhere that they are able to keep warm. You must be frantic! This happened to me just a couple of weeks ago. My gate was open and I didn't know it and Bella got out. Fortunately when I realized it, only 10 min. had gone and thank God she was still close to my house. Ripley amazingly came to my back door and never left the yard. I would do exactly as Cincy's Mom has said and we will all pray for Buddy and Sierra's safe and SOON return!!! Did they have their tags on? When Bella got out, neither of my dogs had their tags on as they had just been groomed. ((((((HUGS)))))) Please try and be calm. Lots of PTers will have you in their prayers today.