A FLOOD WATCH remains in effect for the Mattawa River, downstream of Hurdman Dam to the Ottawa River.

“Water levels remain elevated in the lower reaches of the Mattawa River due to high flows from upstream tributaries to the Ottawa River. Flooding is expected to persist where it is already occurring ,” said Angela Mills, NBMCA Flood Duty Officer. “Water levels in the remainder of the watershed in local rivers have peaked and are near normal for this time of year.”

Limited precipitation is forecast for the coming week, with up to 20 mm of rain locally possible Friday (May 16) into Saturday. Mattawa Island Conservation Area is currently flooded and has been closed to the public until further notice.

The public is encouraged to keep children and pets away from watercourses and shorelines. Area residents and visitors, especially those in low-lying areas, are encouraged to monitor the conditions as they develop and take proper precautions during times of high flows. If you have a flood emergency, please contact your municipality. If you live in an unincorporated township, please contact the Ministry of Natural Resources and Forestry – North Bay District.

As part of the NBMCA Flood Forecasting and Warning Program, staff will continue to monitor weather and watershed conditions and update this message if needed based on the changing weather/streamflow conditions. Staff remain in contact with municipalities and other partners as required.

The general public is advised of these messages through the www.nbmca.ca website with the flood status icon and a link to information about current conditions. NBMCA also circulates these messages to local media and social media, posting on X (@theNBMCA), Facebook (@theNBMCA) and Instagram (nbmcainfo).

This message will be in effect until Tuesday, May 20, 2025, at 4:00 PM EDT. FLOOD BULLETIN

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CONTACT:

Angela Mills, Flood Duty Officer, cell: 705-497-4668
Paula Loranger, Community Relations Coordinator, cell: 705-494-5115

Note: The North Bay-Mattawa Conservation Authority is responsible for local flood forecast and warning programs (Flood Bulletins | NBMCA) for residents who live within their jurisdiction, including those in North Bay and Callander to Mattawa. Where a Conservation Authority has not been established, the MNR District Office is responsible for local Flood Forecast and Warning programs, including along the Ottawa River.