When I came to pick my daughter up the next day, the teacher was waiting for me. (She usually leaves about half and hour before I pick my daughter up.) She already knew that we were upset because my husband talked to the director earlier in the morning.She explained that they went for a short walk and that it pertained to a conversation about the weather. They were only outside for about ten minutes.
I did explain to her about my daughter's health issues and she said she had no idea because it was on the longer medical form I filled out three years ago, not on the short one I update each year. She said she would make sure to not take my dd out again in the cold. She will just go into the 3-4 year old classroom when her class goes outside. (I almost feel like I am punishing my daughter now.) From the sounds of it, I wasn't the only parent upset about the kids going out in the cold.