Speaking just for Lake Superior, we're in a drought situation here right now, so inflow is much reduced; but the biggest culprit seems to be the warmer than usual winters, which lead to significantly reduced ice cover, which in turn leads to greatly increased evaporation.
Fred Street -- Minneapolis S/V Oceanis (1979 C&C Landfall 38) -- on the hard in Bayfield, WI :^( On Oct 3, 2012, at 10:38 AM, Robert Mazza wrote: > OK Stu, here's a dumb question: > > If the water is leaving the Upper Great Lakes faster than normal, why isn't > the level of the Lower Great Lakes rising with all that influx of water? We > keep our boat in Hamilton, Ontario, and the water level at the fixed docks at > the Royal Hamilton Yacht Club is so low now that I have to sit on my butt on > the dock with my legs dangling in space before a gingerly lower myself on to > the deck of Trillium now several feet below dock level. I can't see how > putting baffles in the St. Clair River is going to improve the water level on > Lake Ontario. There seems to be something more at work here than water flow > through the St. Clair River. It probably has to do more with lack of snow > fall and snow build up in the winter with resulting reduced run off in the > spring, as well as changes in precipitation generally. Global warming (or > Climate Change) perhaps? I don't have an answer, but this does seem to be a > problem facing the whole Great Lakes, not just the Upper Lakes.
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