• May 3, 2022

Upper Mattagami Watershed Statistics May 3, 2022 Update

Upper Mattagami Watershed Statistics May 3, 2022 Update

Upper Mattagami Watershed Statistics May 3, 2022 Update 150 150 MRCA

Watershed Update – May 3, 2022

  • Generally, snow depth and water content conditions for this time of year are above normal. Water content variances are ~154% to ~325% above normal through the entire Upper Mattagami Watershed.
  • Current forecasts over the coming week show daytime temperatures ranging from +13°C to +22°C with minimal precipitation expected over the next 5 to 7 days.
  • Generally, elevations and flows at Mesomikenda, Mattagami Lake, Wawaitin and Peter Long are increasing. Inflows are higher than normal for this time of year as a result of recent warming temperatures and snow melt. Storage reservoirs are being managed in consultation with the Timmins Flood Advisory Committee in an attempt to ‘peak shave’ and mitigate high water concerns in Timmins.
  • Town Creek, Crawford Creek and other area watercourses are ice-free and flowing well. All watercourses will continue to be closely watched by Authority and Municipal staff. Stream flows and water levels continue to be monitored on a daily basis.

The next update will be issued on or about May 16, 2022.

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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 2022.

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.