Water quality issues fall into three categories:
The Water Committee works with Georgian Bay Forever and other NGOs to voice the interests of GBA members on water levels.
Learn more about what we do, as well as get tips on what you can do in this section.
Water Satellite Imagery
View a real time satellite image of the Bay here: NASA Satellite Image
Over the last week many areas in the Great lakes basin received significant precipitation. Rainstorms are also predicted for most of the basin for Sunday and Monday. - Water levels continue to be well above average and near or above record high levels. From a month ago the water level on Lake Superior is up 3 inches, Lakes Michigan-Huron and St Clair are unchanged, and Erie & Ontario are both down 3 inches. Lakes Superior, Ontario, & Erie are lower by 3, 3 & 20 inches, respectively, and Lakes Michigan-Huron & St. Clair are 3 & 2 inches higher, respectively, than they were at this time last year. Lakes Superior, Michigan-Huron, St Clair, Erie & Ontario are 10, 34, 34, 28 & 9 inches, respectively, above their long term August average. Lake
Water levels continue to be well above average and near or above record high levels. From a month ago the water level on Lakes Superior is up 3 inches, Michigan-Huron is unchanged, and Lakes St Clair, Erie & Ontario are down 2, 3 & 3 inches, respectively. Lakes Superior, St. Clair, Ontario, & Erie are lower by 3, 2, 4 & 22 inches, respectively, and Lake Michigan-Huron is 3 inches higher than it was at this time last year. Lakes Superior, Michigan-Huron, St Clair, Erie & Ontario are 11, 34, 30, 26 & 5 inches, respectively, above their long term July average. Lake Michigan-Huron is 2 inches higher than its previous record high for July. All the other lakes are below their July record high. In a month’s time, the level of Lake Superior
Over the last week the Great Lakes region received substantial precipitation. Most of the basin received between 0.25 to 2.0 inches; however, large portions of the basin received from 2.0 to 6.0 inches. Temperatures throughout the region remained above average for most of the past week. Water levels continue to be well above average and near or above record high levels. - From a month ago the water level on Lakes Superior & St Clair are up 2 & 1 inches respectively, Michigan-Huron is unchanged, and Lakes Erie & Ontario are down 1 & 3 inches, respectively. Lakes Superior, St. Clair, Ontario, & Erie are lower by 2, 1, 3 & 23 inches, respectively, and Lake Michigan-Huron is 4 inches higher than it was at this time last year. Lakes Superior, Michigan-
Over the last week, the Great Lakes region received above average precipitation, particularly Lake Michigan. Over the next week more rain and above average temperatures are expected. Water levels continue to be well above average and near or above record high levels. - From a month ago the water level on Lakes Superior is up 2 inches, Michigan-Huron & St Clair are unchanged, and Lakes Erie & Ontario are down 1 & 4 inches, respectively. Lakes Superior, St. Clair, Ontario, & Erie are lower by 4, 0, 2 & 24 inches, respectively, and Lake Michigan-Huron is 3 inches higher than it was at this time last year. Lakes Superior, Michigan-Huron, St Clair, Erie & Ontario are 9, 33, 32, 28 & 7 inches, respectively, above their long term July average. L
The Great Lakes region is expected to continue experiencing hot and humid weather after the weekend. Water levels continue to be well above average and near or above record high levels. - From a month ago the water levels on Lakes Superior, Michigan-Huron, & St Clair are up 1, 0 & 2 inches, respectively, and Lakes Erie & Ontario are down 2 & 5 inches, respectively. Lakes Superior, St. Clair, Ontario, & Erie are lower by 5, 1, 4 & 24 inches, respectively, and Lake Michigan-Huron is 3 inches higher than it was at this time last year. Lakes Superior, Michigan-Huron, St Clair, Erie & Ontario are 8, 33, 32, 28 & 7 inches, respectively, above their long term July average. Lake Michigan-Huron is 2 inches higher than its previous reco
In June, precipitation was below average in the Great Lakes basin, its third straight month of below average precipitation for the basin as a whole. The Great Lakes region is also expected to continue experiencing above average temperatures into next week. Water levels continue to be well above average and near or above record high levels. From a month ago the water levels on Lakes Superior, Michigan-Huron, & St Clair are up 2, 1 & 1 inches, respectively, and Lakes Erie & Ontario are down 2 & 5 inches, respectively. Lakes Superior, St. Clair, Ontario, & Erie are lower by 5, 1, 4 & 26 inches, respectively, and Lake Michigan-Huron is 4 inches higher than it was at this time last year. Lakes Superior, Michigan-Huron, St Clair, Erie & Ontario
Lakes Superior and Michigan-Huron have accumulated more precipitation than their normal month to date averages. Lakes Erie and Ontario have both received less than 60% of their typical month to date precipitation. Water levels continue to be well above average and near or above record high levels. - From a month ago the water levels on Lakes Superior & Michigan-Huron are up 4 & 2 inches, respectively, and Lakes St Clair, Erie & Ontario are down 0, 2 & 4 inches, respectively. Lakes Superior, St. Clair, Ontario, & Erie are down 4, 0, 4 & 26 inches, respectively, and Lakes Michigan-Huron is 4 higher than it was at this time last year. Lakes Superior, Michigan-Huron, St Clair, Erie & Ontario are 11, 35, 32, 28 & 7 inches, respectively, ab
Water levels continue to be well above average and near or above record high levels. From a month ago the water levels on Lakes Superior & Michigan-Huron are both up 2 inches, and Lakes St Clair, Erie & Ontario are down 1, 1 & 3 inches, respectively. Lakes Superior, Ontario, & Erie are down 6, 3 & 24 inches, respectively, and Lakes Michigan-Huron & St. Clair are 4 & 1 inches higher, respectively, than they were at this time last year. Lakes Superior, Michigan-Huron, St Clair, Erie & Ontario are 10, 35, 33, 29 & 9 inches, respectively, above their long term June average. Lakes Michigan-Huron and St Clair are 4 & 2 inches higher respectively than their previous record highs for June. All the other lakes are below their
Water levels continue to be well above average and near or above record high levels. From a month ago the water levels on Lakes Superior, Michigan-Huron, St Clair, Erie & are up 3, 4, 3, & 3 inches respectively, Lake Ontario is down 2 inches. Lakes Superior, Ontario, & Erie are down 6, 2 & 23 inches, respectively, and Lakes Michigan-Huron & St. Clair are 6 & 2 inches higher, respectively, than they were at this time last year. Lakes Superior, Michigan-Huron, St Clair, Erie & Ontario are 10, 35, 32, 29 & 10 inches, respectively, above their long term June average. Lakes Michigan-Huron is 5 inches higher than it’s previous record high for June. All the other lakes are either at or below their June record high. - In a month’s
Water levels continue to be well above average and near or above record high levels. From a month ago the water levels on Lakes Superior, Michigan-Huron, St Clair, Erie are up 2, 4, 2 & 3 inches respectively, Lake Ontario is down 2 inches. Lakes Superior and Ontario are down 6 & 23 inches, respectively, and Lakes Michigan-Huron, St. Clair, & Erie are 7, 2 & 1 inches higher, respectively, than they were at this time last year. Lakes Superior, Michigan-Huron, St Clair, Erie & Ontario are 9, 35, 32, 31 & 11 inches, respectively, above their long term June average. Lakes Michigan-Huron is 5 inches higher than it’s previous record high for June. All the other lakes are either at or below their June record high. - In a month’s time, the
Water levels continue to be well above average and near or above record high levels. From a month ago the water levels on Lakes Superior, Michigan-Huron, St Clair, Erie & Ontario are up 2, 4, 3, 3, 0 inches respectively. Lakes Superior and Ontario are down 6 & 21 inches, respectively, and Lakes Michigan-Huron, St. Clair, & Erie are 7, 3 & 2 inches higher, respectively, than they were at this time last year. Lakes Superior, Michigan-Huron, St Clair, Erie & Ontario are 12, 37, 34, 32 & 12 inches, respectively, above their long term May average. Lakes Michigan-Huron, St. Clair and Erie are 6, 4 & 3 inches higher, respectively than their previous record highs for May. It is important to note that in January Michigan-Huron levels wer
There was significant rainfall in Michigan and Illinois over the last week. Water levels continue to be well above average and near or above record high levels. From a month ago the water levels on Lakes Superior, Michigan-Huron, St Clair, Erie & Ontario are up 1, 5, 7, 2, 0 inches respectively. Lakes Superior and Ontario are down 6 & 18 inches, respectively, and Lakes Michigan-Huron, St. Clair, & Erie are 8, 8 & 2 inches higher respectively, than they were at this time last year. Lakes Superior, Michigan-Huron, St Clair, Erie & Ontario are 11, 36, 37, 31 & 13 inches, respectively, above their long term May average. Lakes Michigan-Huron, St. Clair and Erie are 5, 7 & 2 inches higher, respectively than their previous record h
