Map of Lac du Syndicat with depth contours

Lac du Syndicat

49.0866° N, 65.9181° W

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

Download the depth map (SVG)

Lac du Syndicat is 10.9 m deep at its deepest point, shallower than 70% of the 1,506 surveyed lakes in Quebec. It covers 0.21 km² and lies 13 km east of La Colonie.

Maximum depth
10.9 msurveyed 1974
shallower than 70% of the 1,506 surveyed lakes in Quebec
Area
0.21 km²
smaller than 64% of the 29,407 lakes in Quebec
Shoreline
2.3 km
shorter than 77% of the 29,407 lakes in Quebec
Elevation
678 m

Today on the water

7.7 °C

Wind WNW 12 km/h

Observed at Grande-Vallée, as of 3:00 a.m. EDT

choppy Estimated waves, next 12 hours: up to 0.2 m. Around 4 a.m., wind from the west: the west shore is sheltered, waves build toward the east shore.

Hourly forecast, next 24 hours
Time4 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/hW 30W 40W 40W 40W 40W 40W 50W 50
Gusts km/h5060606060607070
Waves (est.) m0.20.20.20.20.2
Temp. °C679109777
Precip. %0003030303060

Tonight: A few showers ending before morning then cloudy. Fog patches dissipating this evening. Wind becoming west 30 km/h gusting to 50 near midnight. Low 6.

Weather: Grande-Vallée (local forecast), as of 3:05 a.m. EDT

Sun and moon

Civil dawn
6:03 a.m.
Sunrise
6:35 a.m.
Sunset
5:45 p.m.
Civil dusk
6:17 p.m.
Moonrise
5:23 a.m.
Moonset
5:03 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

40% of Lac du Syndicat is shallower than 3 m, and 39% 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 1974 records a maximum depth of 10.9 m, drawn from 9 depth contours.

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 Depths are from government surveys and may be outdated.