Map of Lac Proteau with depth contours

Lac Proteau

46.5693° N, 73.9944° W

Depth contours from the 2014 government survey. Not for navigation.

Download the depth map (SVG)

Lac Proteau is 50.4 m deep at its deepest point, deeper than 94% of the 1,506 surveyed lakes in Quebec. It covers 0.92 km² and lies 6.8 km southeast of Domaine-Plouffe.

Maximum depth
50.4 msurveyed 2014
deeper than 94% of the 1,506 surveyed lakes in Quebec
Area
0.92 km²
larger than 73% of the 29,407 lakes in Quebec
Shoreline
9.4 km
longer than 77% of the 29,407 lakes in Quebec
Elevation
453 m

Today on the water

4.4 °C

Wind WNW 7 km/h

Observed at Saint-Michel-des-Saints, as of 8:00 a.m. EDT

calm Estimated waves, next 12 hours: up to 0.1 m. Around 10 a.m., wind from the west: the west shore is sheltered, waves build toward the east shore.

Hourly forecast, next 24 hours
Time10 a.m.1 p.m.4 p.m.7 p.m.10 p.m.1 a.m.4 a.m.7 a.m.
Wind km/hW 10W 20W 20W 15W 10W 10W 10var. 5
Waves (est.) m0.10.10.10.1
Temp. °C7875321-1
Precip. %30303000000

Today: A mix of sun and cloud with 30 percent chance of showers. Wind becoming west 20 km/h near noon. High 8. UV index 3 or moderate.

Weather: Saint-Michel-des-Saints (local forecast), as of 9:05 a.m. EDT

Sun and moon

Civil dawn
6:35 a.m.
Sunrise
7:05 a.m.
Sunset
6:20 p.m.
Civil dusk
6:50 p.m.
Moonrise
5:55 a.m.
Moonset
5:38 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

11% of Lac Proteau is deeper than 30 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 2014 records a maximum depth of 50.4 m, drawn from 29 depth contours.

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 Depths are from government surveys and may be outdated.