Map of Lac Franchère with depth contours

Lac Franchère

46.8114° N, 74.985° W

Depth contours from the 2010 government survey. Not for navigation.

Download the depth map (SVG)

Lac Franchère is 31.7 m deep at its deepest point, deeper than 83% of the 1,506 surveyed lakes in Quebec. It covers 4.52 km² and lies 12 km northeast of Lac-Pérodeau.

Maximum depth
31.7 msurveyed 2010
deeper than 83% of the 1,506 surveyed lakes in Quebec
Area
4.52 km²
larger than 90% of the 29,407 lakes in Quebec
Shoreline
43 km
longer than 94% of the 29,407 lakes in Quebec
Elevation
270 m

Today on the water

6.6 °C

Wind calm

Observed at Mont-Laurier, as of 1:00 a.m. EDT

choppy Estimated waves, next 12 hours: up to 0.2 m.

Hourly forecast, next 24 hours
Time2 a.m.5 a.m.8 a.m.11 a.m.2 p.m.5 p.m.8 p.m.11 p.m.
Wind km/hW 10W 10W 10W 10NW 20NW 20NW 15NW 10
Waves (est.) m0.10.10.10.10.2
Temp. °C644710842
Precip. %60603030303000

Tonight: Mainly cloudy with 60 percent chance of showers. Wind west 20 km/h becoming light this evening. Low plus 4.

Weather: Mont-Laurier (local forecast), as of 1:01 a.m. EDT

Sun and moon

Civil dawn
6:39 a.m.
Sunrise
7:09 a.m.
Sunset
6:23 p.m.
Civil dusk
6:54 p.m.
Moonrise
6:00 a.m.
Moonset
5:42 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

23% of Lac Franchère is shallower than 3 m, and 38% 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 2010 records a maximum depth of 31.7 m, drawn from 223 depth contours.

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 Depths are from government surveys and may be outdated.