Does precipitation on Lake Huron or Lake Superior raise the water level of Lake Michigan?
Ed White, Grayslake
The surfaces of Lake Michigan and Lake Huron lie at the same mean elevation, 578.7 feet above sea level; hydrostatically, they are one lake.
The levels of lakes Michigan and Huron, separated by the Straits of Mackinac, whose depth is 150 to 350 feet and five miles wide at its narrowest point, fluctuate as a unit. Consequently, major precipitation that raises the level of Lake Huron — such as an inch of rain over the entire surface of Lake Huron — would also raise the level of Lake Michigan.
Lake Superior, at a mean surface elevation of 600.4 feet, drains into Lake Huron via the St. Marys River. Precipitation on Lake Superior cannot directly affect the level of lakes Michigan and Huron, but outflow from Superior will increase when its level rises.
Bob Schneider, who lives on on Bluff Lake in Antioch, Illinois sent us these pictures. Bob tells us:
The one titled “Ice Fog” was taken a couple of days ago at sunrise with the fog before it burned off. The one titled “Ice Golf” was taken today after seeing a 4-wheeler plowing the snow on the ice and then people began to show up with their golf clubs. You can see the pins for the holes on both sides of the picture.
Noelle Bender from Aurora sent us this picture of male and female cardinals.
Photo courtesy of Noelle Bender, Aurora, Illinois
Bob Johnson from Buffalo Grove sent us this picture. Bob said:
“here’s a street scene for you taken this morning Monday February 22″
Larry Jahn from Macomb sent us these shots of the snow there. Larry tell us:
“We haven’t seen the grass since about Christmas, with one brief exception. As the yardstick shows, we have 10 inches on the ground, probably got about 8 inches overnight here.”