BSOTBone

Hi, This is my first post. I have a 94 Legacy wagon automatic and front wheel drive only. Yesterday I noticed what I came to know as vaporized water and anti'freez spewing out from under the hood. I looked at the temp gauge and it was pegged above H. I pulled over and got under the hood. the passanger side of the radiator was still spewing as the drivers side was still cool. Cool enought to just take the radiator cap off. Any diagnoses or reccommendations? Thanks, Chris