I actually chilled my beer in Lake Superior in late August. This warm water being pushed below by winds is a crock. More sophistry by the global warming cult to try to make their fallacious theory fit the actual data.
I think the warmist theory was for the oceans, especially the Pacific. As others have pointed out, it's crap.
lakes “flip” - once in the spring and once in the fall - having to do with the epilimnia and hypolimnia and water/temp density - Cold water is on top in the winter - warmer is below at the thermocline...in the spring - warmer comes back to the top - quite dramatically as whole lakes become very turbid for a period - I know this because fishing for trout obligates a knowledge of this