Great Lakes Water Levels Update and NewsAugust 8th, 2014 at 10:30 am by Bill Steffen under Bill's Blog, Weather
Pic. from a couple nights ago by Daughter #2 (Marie) – click to enlarge. Despite the dry weather here in G.R., the water level of Lake Michigan/Huron was unchanged in the last week. The lake(s) is up 1″ in the last month, up 15″ in the last year and only 3″ below the century average. Lake Superior is unchanged in the last month, up 9″ year-to-year and is still 6″ above the long-term average. Lake Erie is down 1″ in the last month, down 3″ year-to-year, but up 5″ from the century average. Lake Ontario is down 4″ in the last month, down 1 inch in the last year, but 6″ above the long-term average. Lake St. Clair is unchanged in the last month, up 9″ in the last year and 4″ above the century average. The outflow from Lake Superior into Lake Michigan/Huron is above average and expected to remain above average through August. The Grand River at Grand Rapids continues to run well above average flow for August (2860 cfs as I write this…median is 1,780) due to heavier rain upstream from Ada. Check Michigan river flow here.
Also: Lake Superior water level highest in 17 years. Here’s photos showing the rising water in the Great Lakes. Lake Michigan salmon fishing slowing a bit this summer. 14-year old girl becomes youngest person to swim across Lake Ontario. Sailboat racing on Lake Michigan. Sierra Club warns “Great Lakes water levels rising, but that won’t last!” Bill Steffen warns “Elevator in Sears Tower rising, but that won’t last!” (I know it’s the Willis Tower now, but everyone still knows it as the Sears Tower) Lake levels go up and down (like an elevator) and the graph of lake levels since 1918 shows that any link to CO2 in the atmosphere is a Herculean stretch. The year with the average lowest water level on Lake Michigan was 1964 and the highest was 1986. The lake naturally goes up and down by nearly 7 FEET from lowest to highest level each 50-100 years.