Map of Lac Anne with depth contours

Lac Anne

45.8257° N, 74.3082° W

Depth contours from the 2011 government survey. Not for navigation.

Download the depth map (SVG)

Lac Anne is 25.3 m deep at its deepest point, deeper than 75% of the 1,506 surveyed lakes in Quebec. It covers 1.19 km² and lies 2.4 km southeast of Lac-Gustave.

Maximum depth
25.3 msurveyed 2011
deeper than 75% of the 1,506 surveyed lakes in Quebec
Area
1.19 km²
larger than 77% of the 29,407 lakes in Quebec
Shoreline
6.1 km
longer than 67% of the 29,407 lakes in Quebec
Elevation
309 m

Today on the water

YELLOW ADVISORY - FROST · issued 4:39 a.m. EDT
Temperatures will drop to near the freezing mark overnight tonight.

Take preventative measures to protect cold-sensitive plants, trees, and crops.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to QCstorm@ec.gc.ca or post reports on social media using #QCStorm.

Official alert on weather.gc.ca · expires 8:39 p.m. EDT

6.9 °C

Mostly CloudyWind WSW 7 km/h

Observed at Lachute, as of 5:00 a.m. EDT

choppy Estimated waves, next 12 hours: up to 0.2 m. Around 9 a.m., wind from the west: the west shore is sheltered, waves build toward the east 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 20W 20W 20W 20W 10W 10NW 10
Gusts km/h404040
Waves (est.) m0.10.20.20.20.2
Temp. °C710121310753
Precip. %404040400000

Today: A mix of sun and cloud with 40 percent chance of showers. Risk of a thunderstorm this afternoon. Wind becoming west 20 km/h gusting to 40 this morning. High 14. UV index 3 or moderate.

Weather: Lachute (local forecast), as of 5:02 a.m. EDT

Sun and moon

Civil dawn
6:36 a.m.
Sunrise
7:06 a.m.
Sunset
6:22 p.m.
Civil dusk
6:51 p.m.
Moonrise
5:56 a.m.
Moonset
5:40 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

45% of Lac Anne 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 from 2011 records a maximum depth of 25.3 m, drawn from 26 depth contours.

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 Depths are from government surveys and may be outdated.