Watershed Conditions Statement - Flood Outlook and Watershed Conditions Statement - Water Safety - Apr 9

The Flood Watch previously issued for Chippewa Creek and Wasi River has been downgraded to Watershed Conditions Statement – Flood Outlook which also 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.

Water levels on area lakes and rivers are high in response to recent mild temperatures, rainfall, and snowmelt. On April 8, the average snow depth was 36.0 cm and the snow water equivalent across the watershed was 118.7 mm. The remaining snow is wet and unstable, and many wetlands and low-lying areas are currently inundated. Trails at the Corbeil Conservation Area remain closed due to flooding.

"Significant water content remains stored in the snowpack, and many wetlands and low-lying areas across the watershed are inundated,” said Angela Mills, NBMCA Flood Duty Officer. "Water levels and flows are expected fluctuate with forecasted mild temperatures, rain, and resulting snowmelt."

The April 8 scheduled snow survey recorded an average snow depth decrease of 6.6 cm and a snow water equivalence decrease of 14.7 mm since the April 1 survey.

This is a supplementary survey; more data is required for comparison to historical conditions. Historical data will be included in the next snow survey which takes place April 15.

Table 1: North Bay Golf and Country Club (Chippewa Creek Watershed, North Bay)  

*Data prior to Dec. 2011 from the former Northeast Mental Health Centre, Hwy 11

Table 2: Corbeil Conservation Area (La Vase River Watershed, Corbeil)

Table 3: Shirley Skinner Conservation Area (Kaibuskong River Watershed, Chisholm)

Temperatures are forecast for daytime highs to be above freezing and overnight lows at or below freezing for the coming week with minimal rainfall over the next few days. A multi-day rain event is likely to begin on Sunday. Water levels and flows on local creeks and rivers will fluctuate in response.

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 is likely 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 16, 2026, at 4:00 PM EDT.

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.