Map of Ishmael Lake with depth contours

Ishmael Lake

46.1106° N, 81.5921° W

Depth contours from the government survey. Not for navigation.

Download the depth map (SVG)

Ishmael Lake is 18.3 m deep at its deepest point, deeper than 54% of the 2,688 surveyed lakes in Ontario. It covers 0.73 km² and lies 3.8 km northeast of McGregor Bay.

Maximum depth
18.3 m
deeper than 54% of the 2,688 surveyed lakes in Ontario
Area
0.73 km²
larger than 60% of the 18,731 lakes in Ontario
Shoreline
7.5 km
longer than 65% of the 18,731 lakes in Ontario
Elevation
184 m

Today on the water

choppy Estimated waves, next 12 hours: up to 0.2 m. Around 11 a.m., wind from the northwest: the northwest shore is sheltered, waves build toward the southeast shore.

Hourly forecast, next 24 hours
Time9 a.m.12 p.m.3 p.m.6 p.m.9 p.m.12 a.m.3 a.m.6 a.m.
Wind km/hNW 15NW 20NW 20NW 20var. 5SE 10SE 10SE 10
Gusts km/h404040
Waves (est.) m0.10.20.20.2
Temp. °C1012131210988
Precip. %30302000000

Today: Cloudy with 30 percent chance of showers this morning and early this afternoon then a mix of sun and cloud. Wind becoming northwest 20 km/h gusting to 40 late this morning. High 13. UV index 3 or moderate.

Weather: Killarney (local forecast), as of 8:05 a.m. EDT

Sun and moon

Civil dawn
7:05 a.m.
Sunrise
7:35 a.m.
Sunset
6:50 p.m.
Civil dusk
7:20 p.m.
Moonrise
6:27 a.m.
Moonset
6:09 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

59% of Ishmael Lake 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 records a maximum depth of 18.3 m, drawn from 7 depth contours.

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 Depths are from government surveys and may be outdated.