WATER LEVELS in the Lake Michigan-Lake Huron basin rose just one inch from May to June, remaining six inches below the level seen during the same period last year and 19 inches below the long term average recorded between 1918 and 2011. Precipitation over Lake Michigan last month and for a 12 month period was described as “below average” in a report released last week by the Army Corps of Engineers hydrology office in Detroit. Water levels are expected to remain 19 to 20 inches below their long term average through December, and range five to eight inches below last year’s levels, hydrologists predict.