Lakes Huron, Michigan unusually high The London Free Press (12/20) Water levels in Lakes Huron and Michigan are bucking the seasonal trend by
remaining high when they normally drop.
EDITORIAL: A lifesaver for Lake Ontario homeowners Rochester Democrat and Chronicle (12/19) The Democrat and Chronicle's editorial board says that any plan to manage water levels on Lake Ontario should protect the environment, businesses, and homeowners.
COMMENTARY: Lake Ontario plan a washout Democrat & Chronicle (12/19) A member of a group concerned about proposed changes to water levels in Lake
Ontario says Plan 2014 misses the mark on wetland protections.
The Great Lakes Basin experienced average or slightly below average temperatures over the past weekend followed by significant warming during the first half of the workweek with daytime highs reported between 10°F and 20°F above normal. Precipitation was above average over most of the basin due to a weather system pushing in from the south bringing warm air and rain. Temperatures are expected to cool with temperatures near average over the weekend and continuing to drop into next week with expected daytime highs near 10°F below normal.
Water Level Conditions:
Lakes Superior and Michigan-Huron are 11 and 22 inches, respectively, above their levels of a year ago. Lakes St. Clair and Erie are 10 and 7 inches, respectively, above what they were at this time last year, while, Lake Ontario is 5 inches below its level of a year ago. Lakes Superior and Michigan-Huron are forecasted to fall 4 and 1 inches, respectively, over the next 30 days. During the same time period, Lake St. Clair and Lake Erie are expected to remain at their current levels, and Lake Ontario is predicted to rise 4 inches.
See the Great Lakes Water Levels web page for more water level information.
Forecasted outflows / channel conditions:
Lake Superior’s outflow through the St. Mary’s River is forecasted to be above average for the month of December. Lake Michigan-Huron’s outflow into the St. Clair River is predicted to be above average and Lake St. Clair’s outflow into the Detroit River is predicted to be above average in December. In addition, the outflow of Lake Erie into the Niagara River and Lake Ontario’s outflow into the St. Lawrence River are projected to be above average in December.
Official records are based on monthly average water levels and not daily water levels. Users of the Great Lakes, connecting channels and St. Lawrence River should keep informed of current conditions before undertaking any activities that could be affected by changing water levels. Mariners should utilize navigation charts and refer to current water level readings.