A FLOOD WATCH remains in effect for the Mattawa River, downstream of Hurdman Dam to the Ottawa River. The Watershed Conditions Statement – Flood Outlook previously issued for the remainder of the North Bay–Mattawa watershed has ended.
“Water levels in the Mattawa area remain above normal and minor flooding is occurring in low-lying areas,” said Githan Kattera, NBMCA Flood Duty Officer. “Water levels on the Mattawa River are expected to remain high due to continued high flows on the Ottawa River.” The Mattawa River downstream of Hurdman Dam is directly influenced by Ottawa River levels.
Rainfall amounts are expected to remain low, with up to 10 mm forecast over the next five days. While water levels are not anticipated to rise significantly, localized flooding may continue where it is already occurring.
The 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 13, 2025, at 4:00 PM EDT. Flood Bulletin
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CONTACT:
Githan Kattera, Flood Duty Officer, cell: 705-498-1462
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.