Map of Grist Lake with depth contours

Grist Lake

52.2481° N, 93.9599° W

Depth contours from the 1997 government survey. Not for navigation.

Download the depth map (SVG)

Grist Lake is 18 m deep at its deepest point, deeper than 52% of the 2,688 surveyed lakes in Ontario. It covers 5.05 km² and lies 27 km northeast of Poplar Hill.

Maximum depth
18 msurveyed 1997
deeper than 52% of the 2,688 surveyed lakes in Ontario
Area
5.05 km²
larger than 91% of the 18,731 lakes in Ontario
Shoreline
35.8 km
longer than 94% of the 18,731 lakes in Ontario
Elevation
349 m

Today on the water

1.9 °C

Mostly CloudyWind SSE 7 km/h

Observed at Pikangikum, as of 7:00 a.m. CDT

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

Hourly forecast, next 24 hours
Time8 a.m.11 a.m.2 p.m.5 p.m.8 p.m.11 p.m.2 a.m.5 a.m.
Wind km/hvar. 5var. 5var. 5E 20E 20SE 20SE 20E 15
Gusts km/h40
Waves (est.) m0.10.10.10.2
Temp. °C57101110987
Precip. %3080808080808040

Today: Mainly cloudy with 30 percent chance of showers this morning. Periods of rain beginning near noon. Fog patches dissipating this morning. Wind becoming east 20 km/h late this afternoon. High 11. UV index 1 or low.

Weather: Pikangikum (local forecast), as of 7:07 a.m. CDT

Sun and moon

Civil dawn
6:56 a.m.
Sunrise
7:30 a.m.
Sunset
6:34 p.m.
Civil dusk
7:08 p.m.
Moonrise
6:23 a.m.
Moonset
5:53 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

24% of Grist Lake is shallower than 3 m, and 39% 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 1997 records a maximum depth of 18 m, drawn from 18 depth contours.

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 Depths are from government surveys and may be outdated.