Map of Lac du Sourd with depth contours

Lac du Sourd

46.1427° N, 75.2633° W

Depth contours from the 1972 government survey. Not for navigation.

Download the depth map (SVG)

Lac du Sourd is 51.5 m deep at its deepest point, deeper than 94% of the 1,506 surveyed lakes in Quebec. It covers 8.42 km² and lies 21 km northwest of Baie-Creuse.

Maximum depth
51.5 msurveyed 1972
deeper than 94% of the 1,506 surveyed lakes in Quebec
Area
8.42 km²
larger than 94% of the 29,407 lakes in Quebec
Shoreline
53.4 km
longer than 96% of the 29,407 lakes in Quebec
Elevation
259 m

Today on the water

6.3 °C

Wind W 3 km/h

Observed at Mont-Laurier, as of 5:00 a.m. EDT

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

Hourly forecast, next 24 hours
Time6 a.m.9 a.m.12 p.m.3 p.m.6 p.m.9 p.m.12 a.m.3 a.m.
Wind km/hW 10W 10NW 20NW 20NW 15NW 10var. 5var. 5
Waves (est.) m0.10.10.20.20.2
Temp. °C5789731-1
Precip. %303030300000

Today: A mix of sun and cloud with 30 percent chance of showers. Wind becoming northwest 20 km/h near noon. High 9. UV index 3 or moderate.

Weather: Mont-Laurier (local forecast), as of 5:04 a.m. EDT

Sun and moon

Civil dawn
6:40 a.m.
Sunrise
7:10 a.m.
Sunset
6:25 p.m.
Civil dusk
6:55 p.m.
Moonrise
6:01 a.m.
Moonset
5:43 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

The government depth survey from 1972 records a maximum depth of 51.5 m, drawn from 45 depth contours.

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 Depths are from government surveys and may be outdated.