Tooms Lake
47.6826° N, 82.9582° W
Depth contours from the 1983 government survey. Not for navigation.
Download the depth map (SVG)Tooms Lake, Ontario. 47.6826° N, 82.9582° W
Maximum depth 12 m (1983 survey). Scale bar on the map.
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/tooms-lake/, compiled October 9, 2026
- Canadian Geographical Names Database, Natural Resources Canada. Contains information licensed under the Open Government Licence – Canada.
- HydroLAKES v1.0, Messager et al. 2016 / WWF HydroSHEDS. Licensed under CC BY 4.0.
- Census boundaries and population, 2021, Statistics Canada. Adapted from Statistics Canada. This does not constitute an endorsement by Statistics Canada.
- Fisheries Management Zones, Ontario Ministry of Natural Resources. Contains information licensed under the Open Government Licence – Ontario.
- Bathymetry lines and survey index, Ontario Ministry of Natural Resources. Contains information licensed under the Open Government Licence – Ontario.
- City page weather forecasts and alerts, Environment and Climate Change Canada. Contains data from Environment and Climate Change Canada (ECCC Data Servers End-use Licence).
Tooms Lake is 12 m deep at its deepest point, shallower than 68% of the 2,688 surveyed lakes in Ontario. It covers 0.39 km² and lies 5 km north of Kormak.
- Maximum depth
- 12 msurveyed 1983
- shallower than 68% of the 2,688 surveyed lakes in Ontario
- Area
- 0.39 km²
- smaller than 58% of the 18,731 lakes in Ontario
- Shoreline
- 3.4 km
- shorter than 69% of the 18,731 lakes in Ontario
- Elevation
- 399 m
Today on the water
5.1 °C
Observed at Chapleau, as of 3:00 a.m. EDT
calm Estimated waves, next 12 hours: up to 0.1 m. Around 4 a.m., wind from the west: the west shore is sheltered, waves build toward the east shore.
| Time | 4 a.m. | 7 a.m. | 10 a.m. | 1 p.m. | 4 p.m. | 7 p.m. | 10 p.m. | 1 a.m. |
|---|---|---|---|---|---|---|---|---|
| Wind km/h | W 10 | W 10 | NW 20 | NW 20 | W 20 | W 10 | var. 5 | SE 10 |
| Waves (est.) m | 0.1 | 0.1 | 0.1 | 0.1 | ||||
| Temp. °C | 3 | 2 | 5 | 9 | 11 | 8 | 4 | 1 |
| Precip. % | 30 | 30 | 20 | 20 | 0 | 0 | 0 | 0 |
Tonight: Mainly cloudy with 60 percent chance of showers. Wind west 30 km/h gusting to 50 becoming light late this evening. Low plus 2.
Weather: Chapleau (local forecast), as of 3:00 a.m. EDT
Sun and moon
- Civil dawn
- 7:11 a.m.
- Sunrise
- 7:42 a.m.
- Sunset
- 6:55 p.m.
- Civil dusk
- 7:25 p.m.
- Moonrise
- 6:34 a.m.
- Moonset
- 6:13 p.m.
- Moon
- Waning crescent, 1% lit
Follow this lake by email: a weekly summary of conditions.
Depth
59% of Tooms Lake is shallower than 3 m, and 29% is deeper than 5 m.
How to read it: the lake’s area is sorted from the shore to the deepest point. Where the curve is flat, large areas share one depth (flats and weed beds); where it drops, depth changes quickly (drop-offs).
The government depth survey from 1983 records a maximum depth of 12 m, drawn from 6 depth contours.
- Download the depth map (SVG)Printing this page gives the map on one sheet, with scale and sources.
Not for navigation. Depths are from government surveys and may be outdated.
Follow this lake
Every Friday by email: the Environment Canada forecast and any weather alerts in effect.