自7月以来,密歇根湖的水位已下降20英寸,低于其长期平均水平。 Lake Michigan's water level has dropped 20 inches since July, reaching below its long-term average.

密歇根湖的水位已降到长期平均水平以下,自7月以来下降了约20英寸。 Lake Michigan's water level has dropped below its long-term average, falling about 20 inches since July. 密歇根湖-Huron湖通常在2月达到年低点。 Lakes Michigan-Huron usually hit their yearly low in February. 目前,湖泊比1986年历史最高水平低40英寸,比2014年最低水平高24英寸。 Currently, the lakes are 40 inches below their all-time high in 1986 and 24 inches above their low in 2014. 尽管高和低水平的周期是正常的,但长期下降趋势可能会对商业产生不利影响,因为需要更多的港口疏浚。 Though cycles of high and low levels are normal, a long-term decline trend could negatively impact commerce by requiring more harbor dredging.