A Flood Watch has been issued for the Wasi River through Chisholm, East Ferris, and Callander and Chippewa Creek in North Bay. A Watershed Conditions Statement – Flood Outlook continues for most of the NBMCA watershed and a Watershed Conditions Statement – Water Safety continues for the Lake Nipissing Shoreline and Mattawa River downstream of Hurdman Dam.
Preliminary data indicate 20-40 mm of rain fell across the watershed since yesterday. Water levels and flows have increased in response to several days of mild temperatures, rainfall, and snowmelt in the past week. Wasi River has responded significantly to last night’s rain, having risen more than 60 cm and continues to rise. Trails at the Corbeil Conservation Area remain closed due to flooding.
"Forecasts indicate temperatures will warm to 10 ºC today and with daytime highs above freezing and overnight lows near freezing through the weekend with an additional 30 mm of rain forecast for Saturday," said Angela Mills, NBMCA Flood Duty Officer. "Significant water content remains stored in the snowpack, and many wetlands and low-lying areas across the watershed are inundated."
The public is encouraged to keep children and pets away from watercourses and shorelines. Residents should be aware that water levels and flows in local streams and rivers, particularly in urban areas, can change rapidly during and after rainfall events. While widespread flooding is not anticipated, ponding and localized flooding remain possible in flood-prone, low-lying areas. For flood emergencies, contact your local municipality. Residents of unincorporated townships should contact the Ministry of Natural Resources – North Bay District.
NBMCA staff will continue to monitor conditions as part of the Authority's Flood Forecasting and Warning Program and will update this message as needed.
Current flood status and condition updates are available at nbmca.ca. This statement is also distributed to local media and posted on X (@theNBMCA), Facebook (@theNBMCA), and Instagram (@nbmcainfo).
This message is in effect until Thursday, April 9, 2026, at 4:00 PM EDT. Full Bulletin
Note: The North Bay-Mattawa Conservation Authority is responsible for local flood forecast and warning programs for residents who live within the jurisdiction, including those in North Bay and Callander to Mattawa. Where a Conservation Authority has not been established, the local MNR District Office is responsible for local Flood Forecast and Warning programs, including along the Ottawa River, see MNR Flood Forecast and Warning.
CONTACT:
Angela Mills, Flood Duty Officer, cell: 705-497-4668
Paula Loranger, Community Relations Coordinator, cell: 705-494-5115