Great Lakes Water LevelsFebruary 22nd, 2013 at 9:54 pm by Bill Steffen under Bill's Blog, Weather
You’re looking at the buildings in Chicago from Grand Mere St. Park across Lake Michigan just after sunset. Picture from Joshua at ReportIt. You really have to see the picture full screen. Precipitation has been above average of late and that’s bumped up the water level of Lake Michigan/Huron 2″ in the last month. The lake is still down 13″ from one year ago. The level is 26″ below the century average for February, but one inch above the lowest February level, which was back in 1964. Lake Superior’s level was unchanged in the last month and is 2″ higher than one year ago. Lake Erie is unchanged in the past month and Lake Ontario went up 4″ in the last month, but is still 3″ below average. Grand Rapids is 0.72″ above average for precipitation this month and 2.99″ above average since Dec. 1. Muskegon is +5.63″ since Dec. 1 and Lansing is +1.93″. We were also above average for precipitation last winter. The volume of water flowing in the Grand River into Lake Michigan remains above average. Precpitation has been above average 7 of the last 12 years in the Lake Michigan/Huron basin. Here’s more from meteorologist Mark Torregrossa. I’ve linked to this article before, but if you’re interested in lake levels, you ought to give it a read. Lack of snowfall last winter isn’t the reason Lake Michigan and Lake Huron had such a sharp drop in water level. Total precipitation was slightly above average last winter over much of the Lake Michigan basin – it came more as rain than snow.