This is just discussing the typical seasonality. Water levels drop over winter until spring occurs: > In a large fluctuating water level regime of the Great La

This is just discussing the typical seasonality. Water levels drop over winter until spring occurs: > In a large fluctuating water level regime of the Great Lakes, we could say the lakes are close to average water levels now. > We have moderate to severe drought around the Great Lakes now. If we continue with drier than normal weather, the lake levels will soon slip to below normal levels. While Lake Ontario's outflows do have control via locks/dams, the other lakes do have various dams controlling in-flows from tributaries. No idea how much these other ones are actually used for lake level control: > Lake Ontario’s water level can be regulated somewhat through the St. Lawrence Seaway.