I have to believe most of the munis will be open. Talked to a guy at Golf Galaxy that said he had some buddies that played Seneca recently in the cold. I think Glenmary is likely open, and most of the tracks in Southern Indiana should be good too (Covered Bridge, Champions Pointe, Hidden Creek, and Wooded View). Of course they are all going to be a bit soggy, so I'd look into the Fuzzy courses for drainage reasons alone.