The lake was entirely frozen today, 2-3 inches thick. I even went about 60 feet out on it and didn't have a single crack in the ice. I opened a small hole in front of the blind and tried to bring them in. The pond just south of the property was somehow open and I watched no less than 400 ducks land there over the course of the morning. I set up on the hill by the tree line and was able to snag 3 in passing shots. Mother Nature had other plans but if it wasn't frozen it would have been absolutely lights out. 
I don't know when this will unfreeze but definitely not the next 48 hours just fyi