NOAA Great Lakes Environmental Research Laboratory Home Page
Historic and recent lake level graphics, climate outlooks, and forecasted
water supplies for the next 12 months.
NOAA Great Lakes Water Level Station List (Current levels as charts)
Stations highlighted in RED are in storm surge mode
Great Lakes Hydraulics & Hydrology Home Page
from U.S. Army Corps of Engineers including the following information
- For historical information on levels
- For maximum and minimum levels
- For weekly/30-day data and forecast.
- Great Lakes Water Levels page
Canadian Hydrographic Service
Hourly water level data and graphs for the past two months.