Map of Jocko Lake with depth contours

Jocko Lake

45.6814° N, 77.7261° W

Depth contours from the 1971 government survey. Not for navigation.

Download the depth map (SVG)

Jocko Lake is 12.2 m deep at its deepest point, shallower than 65% of the 2,688 surveyed lakes in Ontario. It covers 0.12 km² and lies 6.4 km southeast of Basin Depot.

Maximum depth
12.2 msurveyed 1971
shallower than 65% of the 2,688 surveyed lakes in Ontario
Area
0.12 km²
smaller than 95% of the 18,731 lakes in Ontario
Shoreline
1.4 km
shorter than 100% of the 18,731 lakes in Ontario
Elevation
178 m

Today on the water

5.5 °C

Wind NW 4 km/h

Observed at Barry's Bay, as of 4:00 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
Time5 a.m.8 a.m.11 a.m.2 p.m.5 p.m.8 p.m.11 p.m.2 a.m.
Wind km/hW 15W 15W 15NW 30NW 30NW 15var. 5var. 5
Gusts km/h5050
Waves (est.) m0.10.10.10.2
Temp. °C248121383-1
Precip. %40404040202000

Tonight: Partly cloudy with 60 percent chance of showers. Risk of a thunderstorm early this evening. Wind west 30 km/h gusting to 50 becoming light this evening. Low plus 2.

Weather: Barry's Bay (local forecast), as of 4:02 a.m. EDT

Sun and moon

Civil dawn
6:49 a.m.
Sunrise
7:19 a.m.
Sunset
6:35 p.m.
Civil dusk
7:05 p.m.
Moonrise
6:11 a.m.
Moonset
5:54 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

48% of Jocko Lake is shallower than 3 m, and 38% is deeper than 5 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 1971 records a maximum depth of 12.2 m, drawn from 10 depth contours.

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 Depths are from government surveys and may be outdated.