We’ve had an overall drier pattern in the Great Lakes and that’s caused water levels to drop a bit.
Lake Michigan-Huron is at the same level as one month ago, but is now 5″ below the level of one year ago. It’s 19″ below average level for June, but 12″ above the low level of June 1964.
Lake Superior is up 4″ in the last month and is one inch higher than June 2011. Superior is 11″ below average level. The eastern lakes have a much more variable water level, are down a lot year-to-year.
Lake Erie, which was well above normal a few months ago is now 14″ below the level of one year ago and Ontario is down 19″ year-to-year. Erie is only 3″ below the century average and Lake Ontario is 6″ below the century average.