Map of Lac Lapeyrère with depth contours

Lac Lapeyrère

47.2279° N, 72.3548° W

Depth contours from the 1974 government survey. Not for navigation.

Download the depth map (SVG)

Lac Lapeyrère is 50.2 m deep at its deepest point, deeper than 94% of the 1,506 surveyed lakes in Quebec. It covers 6.85 km² and lies 20 km northeast of Lac-Chat.

Maximum depth
50.2 msurveyed 1974
deeper than 94% of the 1,506 surveyed lakes in Quebec
Area
6.85 km²
larger than 93% of the 29,407 lakes in Quebec
Shoreline
51.8 km
longer than 95% of the 29,407 lakes in Quebec
Elevation
309 m

Today on the water

4.1 °C

Wind ESE 4 km/h

Observed at La Tuque, as of 4:00 a.m. EDT

choppy Estimated waves, next 12 hours: up to 0.2 m. Around 9 a.m., wind from the northwest: the northwest shore is sheltered, waves build toward the southeast shore.

Hourly forecast, next 24 hours
Time5 a.m.8 a.m.11 a.m.2 p.m.5 p.m.8 p.m.11 p.m.2 a.m.
Wind km/hW 10NW 10NW 20NW 20NW 20W 15W 10W 10
Gusts km/h4040
Waves (est.) m0.10.10.20.20.2
Temp. °C356108532
Precip. %4040404040000

Tonight: Mainly cloudy with 40 percent chance of showers. Wind west 20 km/h becoming light early this evening. Low plus 3.

Weather: La Tuque (local forecast), as of 4:02 a.m. EDT

Sun and moon

Civil dawn
6:28 a.m.
Sunrise
6:59 a.m.
Sunset
6:13 p.m.
Civil dusk
6:43 p.m.
Moonrise
5:49 a.m.
Moonset
5:31 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

13% of Lac Lapeyrère 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 1974 records a maximum depth of 50.2 m, drawn from 50 depth contours.

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 Depths are from government surveys and may be outdated.