2019-Oct-07
October 6 Water Levels Report
The end of September and beginning of October was quite wet across the Great Lakes region. Another round of showers is expected over the weekend as a frontal system begins to move through the region on Saturday. A transition to dryer conditions is expected for the work week, which will provide some relief to areas that have experienced riverine flooding as a result of the recent wet conditions.
Lakes Superior and Michigan-Huron are 1 to 2 inches higher than last month, while Lakes St. Clair, Erie, and Ontario are lower by 1, 4, and 9 inches, respectively. All lakes are currently below their highest October average level by 1 to 7 inches. All of the lakes are expected to decline over the next month, despite slight rises in water level during this past week due to the recent rainfall events, Lakes Superior and Michigan-Huron by about 2 inches, Lakes St. Clair and Erie by 5 inches, and Lake Ontario by 7 inches.
Outflows from Lake Superior into the St. Mary’s River is forecasted to be above average for October. Lake Michigan-Huron’s outflow through the St. Clair River and Lake St. Clair’s outflow through the Detroit River, are also projected to be above average in October. Moreover, Lake Erie’s outflow through the Niagara River and Lake Ontario’s outflow through the St. Lawrence River are predicted to be above average for October.
