Snow observed on November 14, 2025 brought snow depths in Chisholm and North Bay above normal levels, though Corbeil remained snow-free. Today’s snow survey measurements show a snow depth increase of 9.0 cm, and snow water equivalence increase of 10 mm, reports the North Bay-Mattawa Conservation Authority (NBMCA) who measures snow depth and water content as part of its Flood Forecasting and Warning Program.
“The fresh snowfall has a combined average snow depth of 12.5 cm and water equivalence of 18.0 mm at the three snow course locations”, said Angela Mills, NBMCA Water Resources Specialist. “This is normal for early December”.
A Snow Survey page on our website is available with more snow survey program information and this season's measurements. https://nbmca.ca/watershed-management/snow-survey/
Snow is measured for depth and water equivalence at three locations in the watershed.
North Bay Golf and Country Club (Chippewa Creek Watershed, North Bay)
*Data prior to Dec. 2011 collected at the former Northeast Mental Health Centre, Hwy 11
|
Current Snow Depth for December 1, 2025 |
8.5 cm (normal) |
|
Current Snow Water Equivalence for December 1, 2025 |
15.0 mm (normal) |
|
Snow Depth last year for December 2, 2024 |
5.9 cm |
|
Normal Snow Depth |
0 cm – 13.0 cm |
|
Highest recorded snow depth for December 1 since 2012* |
20.6 cm in 2018 |
Corbeil Conservation Area (La Vase River Watershed, Corbeil)
|
Current Snow Depth for December 1, 2025 |
14.2 cm (normal) |
|
Current Snow Water Equivalence for December 1, 2025 |
20.0 mm (normal) |
|
Snow Depth last year for December 2, 2024 |
4.5 cm |
|
Normal Snow Depth |
0 cm – 16.5 cm |
|
Highest recorded snow depth for December 1 since 1988 |
43.4 cm in 2008 |
Shirley Skinner Conservation Area (Kaibuskong River Watershed, Chisholm)
|
Current Snow Depth for December 1, 2025 |
14.7 cm (normal) |
|
Current Snow Water Equivalence for December 1, 2025 |
19.0 mm (normal) |
|
Snow Depth last year for December 2, 2024 |
3.3 cm |
|
Normal Snow Depth |
0 cm – 18.4 cm |
|
Highest recorded snow depth for December 1 since 1988 |
43.8 cm in 2008 |
The North Bay-Mattawa Conservation Authority (NBMCA) was founded in 1972 by the Province of Ontario. NBMCA is one of 36 Conservation Authorities in Ontario responsible for watershed management on behalf of local municipalities, stakeholders, and the province.
The public can follow NBMCA on the web at nbmca.ca, on X (Twitter) (@theNBMCA), Facebook (@theNBMCA) and Instagram (nbmcainfo).
For more information, contact:
Angela Mills, Water Resources Specialist (705) 497-4668
Paula Loranger, Community Relations Coordinator (705) 494-5115