the word from Larry's site is that the cold weather has stabilized the lid on 11mile but very little new ice has grown and a fair amount of open water has appeared. I would assume this holds true for tarryall also. you might have a chance of some safe ice -- just be warned we were about the only ones out there last sunday, saw 3 other groups -- that could spell trouble if you are by yourself on late ice.
Good luck. be safe,
FH