The sun breaks through the clouds over Lake Erie in August 1999. On Wednesday evening, eastern Lake Erie may see the lake's water level rise while the west shore will see the lake recede. This phenomenon is what meteorologists call a "seiche." File Photo by Mike WIlliams/UPI | License Photo

A forecast shows the water level on Lake Erie will differ by 11.5 feet (355 cm) tonight from the western to eastern shore. NOAA image

People living on the east shore of Lake Erie may see the lake's water level rise into their yards and onto roads Wednesday night. At the same time, residents on the west shore will watch the lake recede far away from them. This phenomenon is what meteorologists call a "seiche."

Wednesday night, Lake Erie's water level at Buffalo is forecast to rise 5-6 feet higher than before the storm, while at Toledo, Ohio, on the lake's west side, levels will drop by 5-6 feet from Tuesday night's levels. The highest and lowest points will occur around 7 p.m. EST.

A graph of the forecast rise (Buffalo) and fall (Toledo) of water during tonight's seiche. NOAA image