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The lake's water level fluctuates from month to month, with the highest lake levels in October and November. The normal high-water mark is 1.17 feet (0.36 m) above the datum (601.1 ft or 183.2 m). In the summer of 1985, Lake Superior reached its highest recorded level at 2.33 feet (0.71 m) above the datum.
Open lakes typically have relatively stable water levels that do not fluctuate, as input is always matched by outflow to rivers downstream. If more water enters an open lake than was previously leaving it, then more water will leave the lake. The drainage from an open lake, like that from ordinary rivers, is referred to as exorheic (from the ...
The Lake Superior Reserve and the Old Woman Creek (Lake Erie in Ohio) are the only Great Lakes freshwater estuaries in the Reserve System. This subregion contains all of Lake Superior and its freshwater estuaries. One of these estuaries formed where the waters of the St. Louis River enter Lake Superior. Lake Superior, which is bordered by ...
The waterway allows passage from the Atlantic Ocean to the inland port of Duluth on Lake Superior, a distance of 2,340 miles (3,770 km) and to Chicago, on Lake Michigan, at 2,250 miles (3,620 km). [3] The elevation change from Lake Superior to sea level is 601 feet (183 m).
Several communities across the Great Lakes region are preparing to be blasted by feet of snow as winter weather moves in just as millions of people across the U.S. ring in 2025.
The water level of Lake Michigan–Huron had remained fairly constant over the 20th century. [36] Recent lake levels include record low levels in 2013 in Lakes Superior, Erie, and Michigan-Huron, [37] followed by record high levels in 2020 [38] in the same lakes. The water level in Lake Ontario has remained relatively constant in the same time ...
Sigman said the lake is at 298 feet above mean sea level, which is 6 inches above normal. If the weather forecast holds, he expects the lake will return to its normal level in a week or so.
This article lists lakes with a water volume of more than 100 km 3, ranked by volume. The volume of a lake is a difficult quantity to measure. [1] Generally, the volume must be inferred from bathymetric data by integration. Lake volumes can also change dramatically over time and during the year, especially for salt lakes in arid climates.