Map of Lac aux Brochets with depth contours

Lac aux Brochets

47.2219° N, 72.6768° W

Depth contours from the 2012 government survey. Not for navigation.

Download the depth map (SVG)

Lac aux Brochets is 34.7 m deep at its deepest point, deeper than 86% of the 1,506 surveyed lakes in Quebec. It covers 0.94 km² and lies beside Festubert.

Maximum depth
34.7 msurveyed 2012
deeper than 86% of the 1,506 surveyed lakes in Quebec
Area
0.94 km²
larger than 73% of the 29,407 lakes in Quebec
Shoreline
9.2 km
longer than 76% of the 29,407 lakes in Quebec
Water clarity
3.7 mSecchi depth, 2019
less clear than 52% of the 805 monitored lakes in Quebec
Elevation
214 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

4.9 °C

Wind W 4 km/h

Observed at Mauricie, as of 6:00 a.m. EDT

choppy Estimated waves, next 12 hours: up to 0.2 m. Around 6 p.m., wind from the northwest: the northwest shore is sheltered, waves build toward the southeast shore.

Hourly forecast, next 24 hours
Time7 a.m.10 a.m.1 p.m.4 p.m.7 p.m.10 p.m.1 a.m.4 a.m.
Wind km/hW 10W 20W 20W 20NW 20NW 15NW 10NW 10
Gusts km/h404040
Waves (est.) m0.10.10.10.1
Temp. °C810111110865
Precip. %303030300000

Today: A mix of sun and cloud with 30 percent chance of showers. Wind becoming west 20 km/h gusting to 40 this morning. High 12. UV index 3 or moderate.

Weather: Mauricie (local forecast), as of 6:03 a.m. EDT

Sun and moon

Civil dawn
6:30 a.m.
Sunrise
7:00 a.m.
Sunset
6:14 p.m.
Civil dusk
6:44 p.m.
Moonrise
5:50 a.m.
Moonset
5:32 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

18% of Lac aux Brochets is deeper than 20 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 2012 records a maximum depth of 34.7 m, drawn from 42 depth contours.

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 Depths are from government surveys and may be outdated.

Water

Trophic status from the latest monitoring: mesotrophic.

Clarity was measured with a Secchi disk in 9 years between 2009 and 2019; the latest annual mean is 3.7 m.

Water clarity (Secchi depth, m)
Total phosphorus (µg/L)