(North Bay, Ontario, December 1, 2023) After this week’s snow squalls off Georgian Bay, there’s a fairly consistent layer of wet snow in our area, with less snow at the Chisholm snow survey station, reports the North Bay-Mattawa Conservation Authority (NBMCA) who measures snow depth and water content as part of its Flood Forecasting and Warning Program. 

“Average snow depth for all sites is 11.3 cm (122 % normal) and average water equivalence is 22.3 mm (157 % normal),” said Angela Mills, NBMCA Water Resources Specialist. In 2022, the average snow depth for the three sites was 0.9 cm and water equivalence was 3.3 mm at this time of year” she added.

This is the second snow course survey of the 2023-2024 season, but the first with measurable snow.  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 Average Snow Depth for December 1, 2023

16.4 cm (206 % of normal)

Current Average Water Equivalence for December 1, 2023

29 mm (209 % of normal)

Average Snow Depth for December 1, 2022

8.0 cm

Highest recorded snow depth for December since 2012*

20.6 cm in 2018

Corbeil Conservation Area (La Vase River Watershed, Corbeil)

Current Average Snow Depth for December 1, 2023

10.7 cm (124 % of normal)

Current Average Water Equivalence for December 1, 2023

20 mm (173 % of normal)

Average Snow Depth for December 1, 2023

8.7 cm

Highest recorded snow depth for December 1 since 1988

43.4 cm in 2008

Shirley Skinner Conservation Area (Kaibuskong River Watershed, Chisholm)

Current Average Snow Depth for December 1, 2023                

6.3 cm (50 % of normal)

Current Average Water Equivalence for December 1, 2023

18 mm (88 % of normal)

Average Snow Depth for December 1, 2023

Highest recorded snow depth for December 1 since 2007

12.7 cm

43.8 cm in 2008

The North Bay-Mattawa Conservation Authority (NBMCA) was founded in 1972 by the Province of Ontario and the NBMCA’s 10 member municipalities. 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
David Ellingwood, Director, Water Resources (705) 474-5420