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While the temperature of the surface of Lake Superior varies seasonally, the temperature below 110 fathoms (660 ft; 200 m) is an almost constant 39 °F (4 °C). This variation in temperature makes the lake seasonally stratified .
National Geophysical Data Center, 1999. Bathymetry of Lake Superior. National Geophysical Data Center, NOAA. [access date: 2015-03-23]. (the general reference to NGDC because this lake was never published, compilation of Great Lakes Bathymetry at NGDC has been suspended).
The state is nearly 500 miles (805 km) from any large body of water (with the exception of Lake Superior), and temperatures and precipitation vary widely. It is far enough north to experience −60 °F (−51 °C) temperatures and blizzards during the winter months, but far enough south to have 114 °F or 45.6 °C temperatures and tornado ...
The persistence and strength of the storm's westerly winds also piled the waters of Lake Michigan along the Michigan shoreline leading to declines in lake levels on the Illinois and Wisconsin side of the lake. Based on NOAA lake level sensors, an updated analysis of Wednesday, October 27, 2010, water levels on Lake Michigan revealed a two-day ...
GLERL was created 25 April 1974 when NOAA merged part of the pre-existing Lake Survey Center (the Limnology and Computer Divisions) with the staff of the International Field Year of the Great Lakes (IFYGL) office. IFYGL had taken place the previous year 1972–1973. [2] The first director was Eugene Aubert (1974-1986). [3]
The Apostle Islands National Lakeshore is located in Bayfield, Wisconsin, on Lake Superior, the "largest, cleanest, and coldest of the Great Lakes." [3] The lakeshore comprises beaches, cliffs, water, and 21 islands. [4] Of its area, 42,308 acres is land and 27,232 acres is water, extending 1/4 mile from the 155 miles of shoreline. [5]
The same storm system that caused the 1995 seiche on Lake Superior produced a similar effect in Lake Huron, in which the water level at Port Huron changed by 1.8 metres (6 ft) over two hours. [12] On June 26, 1954, on Lake Michigan in Chicago, eight fishermen were swept away from piers at Montrose and North Avenue Beaches and drowned when a 3 ...
Lake-effect snow occurs when cold air moves over warmer water, taking up moisture that later precipitates as snow when the air moves over land and cools. [2] The lakes produce snowsqualls and persistently cloudy skies throughout the winter, as long as air temperatures are colder than water temperatures, or until a lake freezes over.