Passed by a few lakes in Oakland county this afternoon. Oxbow lake had open water in the middle of the southern bay off of Elizabeth lk rd. Cooley lake looked to be frozen all across. Union lake had a stream of open water just east of the launch going across(south) to the other side of that bay, also looked to be open water in the middle of it. I spudded out to the center of middle straights lake and it was a solid 6" all throughout. The majority of Cass lake is frozen except the deeper middle portions of the main lake. I checked a couple spots in the guts and they were a solid 6-8" thick but the shore ice was only 1-2" thick. There was also some open water where the reeds make it narrow between the bay the launch is in and the back bay there. Orchard lake had a bunch of smaller open spots scattered throughout. Pine lake also had a big area of open water towards the middle. The majority of the ice on these lakes is pretty thick and solid, but you have to watch out for all the open water areas and the shore ice which is getting better now by the day. Good luck this weekend and be safe.