4/18/08 – Today’s ice thickness test actually measured thicker ice than yesterday’s. 22.5″ today and 20″ yesterday. I don’t think this means that the ice is getting thicker (although it did get below freezing last night). Lake ice is not perfectly flat on its bottom surface. I think we just randomly picked a slightly thicker spot to measure. There is 5″ of slush and water on top of the ice. – Bill