Map of Barnston Lake with depth contours

Barnston Lake

50.5782° N, 93.4954° W

Depth contours from the government survey. Not for navigation.

Download the depth map (SVG)

Barnston Lake is 24.4 m deep at its deepest point, deeper than 70% of the 2,688 surveyed lakes in Ontario. It covers 5.79 km² and lies beside Manitou Falls.

Maximum depth
24.4 m
deeper than 70% of the 2,688 surveyed lakes in Ontario
Area
5.79 km²
larger than 92% of the 18,731 lakes in Ontario
Shoreline
17.8 km
longer than 86% of the 18,731 lakes in Ontario
Elevation
329 m

Today on the water

0.1 °C

Wind calm

Observed at Ear Falls, as of 2:00 a.m. CDT

choppy Estimated waves, next 12 hours: up to 0.2 m. Around 10 a.m., wind from the south: the south shore is sheltered, waves build toward the north shore.

Hourly forecast, next 24 hours
Time3 a.m.6 a.m.9 a.m.12 p.m.3 p.m.6 p.m.9 p.m.12 a.m.
Wind km/hS 10S 10S 10S 20E 10SE 30SE 30SE 30
Gusts km/h505050
Waves (est.) m0.10.10.10.20.1
Temp. °C2159111098
Precip. %2020202060606010

Tonight: A few clouds. Wind northwest 20 km/h gusting to 40 becoming light this evening. Low plus 1.

Weather: Ear Falls (local forecast), as of 2:02 a.m. CDT

Sun and moon

Civil dawn
6:54 a.m.
Sunrise
7:27 a.m.
Sunset
6:34 p.m.
Civil dusk
7:06 p.m.
Moonrise
6:20 a.m.
Moonset
5:53 p.m.
Moon
Waning crescent, 1% lit

Data Source: Environment and Climate Change Canada. Local times.

How waves are estimated

Significant wave height from the forecast hourly wind and the open-water distance (fetch) upwind, using the SMB method (US Army Corps of Engineers Shore Protection Manual, 1984), rounded up to the next 0.1 m. It is not a measurement: gusts, leftover swell and shoals can make water rougher. Under 0.2 m: calm; 0.2–0.5 m: choppy; over 0.5 m: rough.

Depth

62% of Barnston Lake is shallower than 3 m, and 12% is deeper than 10 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 records a maximum depth of 24.4 m, drawn from 11 depth contours.

Not for navigation. Depths are from government surveys and may be outdated.