Watershed Update – May 2 2025
- Generally, snow depth and water content conditions for this time of year are above normal. Water content variances are 235% to 314% above normal through the entire Upper Mattagami Watershed. The Shining Tree site is almost devoid of snow.
- Current forecasts over the coming week show daytime temperatures ranging from +7°Cto +19°C with minimal precipitation expected over the next 5 to 7 days.
- The next Update will be issued on or about May 15, 2025.
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View OPG River System Data / Water Levels and Flow
If you have any questions or comments, please contact the Conservation Authority at 705-360-2660 or via email at [email protected]
See our Upper Mattagami River Watershed Statistics page to download the current watershed statistics and for the full list of reports for 2025.
The information contained in this update has been gathered by Ontario Power Generation, the Ministry of Natural Resources & Forestry and the Mattagami Region Conservation Authority. The summary highlights dam operations and storages as well as snow depth and water content in comparison to historical norms. Watershed surveys will be conducted on the 1st and 15th of each month until the snow cover has disappeared. Updates will be issued until such time any flood threat has passed.