Map of Deception Lake with depth contours

Deception Lake

50.1798° N, 91.7586° W

Depth contours from the 1978 government survey. Not for navigation.

Download the depth map (SVG)

Deception Lake is 18.3 m deep at its deepest point, deeper than 54% of the 2,688 surveyed lakes in Ontario. It covers 4.08 km² and lies 8.7 km north of Superior Junction.

Maximum depth
18.3 msurveyed 1978
deeper than 54% of the 2,688 surveyed lakes in Ontario
Area
4.08 km²
larger than 90% of the 18,731 lakes in Ontario
Shoreline
21.3 km
longer than 88% of the 18,731 lakes in Ontario
Elevation
355 m

Today on the water

0.4 °C

Partly CloudyWind SSE 4 km/h

Observed at Sioux Lookout, as of 4:00 a.m. CDT

choppy Estimated waves, next 12 hours: up to 0.2 m. Around 7 a.m., wind from the south: the south shore is sheltered, waves build toward the north 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/hS 10S 20S 20SE 20SE 20SE 30SE 30SE 20
Gusts km/h40505040
Waves (est.) m0.10.20.20.20.2
Temp. °C03811111076
Precip. %2020206060601010

Tonight: Partly cloudy. Becoming clear this evening. Wind northwest 30 km/h gusting to 50 becoming light this evening. Low minus 1.

Weather: Sioux Lookout (local forecast), as of 4:02 a.m. CDT

Sun and moon

Civil dawn
6:47 a.m.
Sunrise
7:19 a.m.
Sunset
6:27 p.m.
Civil dusk
7:00 p.m.
Moonrise
6:12 a.m.
Moonset
5:46 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

The government depth survey from 1978 records a maximum depth of 18.3 m, drawn from 5 depth contours.

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 Depths are from government surveys and may be outdated.

Getting on the water

1 listed boat launch; 1 with parking listed. marks launches on the map.