Map of White Lake with depth contours

White Lake

44.8289° N, 78.4764° W

Depth contours from the 1976 government survey. Not for navigation.

Download the depth map (SVG)

White Lake is 9.1 m deep at its deepest point, shallower than 76% of the 2,688 surveyed lakes in Ontario. It covers 1.78 km² and lies beside Fortescue.

Maximum depth
9.1 msurveyed 1976
shallower than 76% of the 2,688 surveyed lakes in Ontario
Area
1.78 km²
larger than 79% of the 18,731 lakes in Ontario
Shoreline
15.6 km
longer than 83% of the 18,731 lakes in Ontario
Water clarity
3.9 mSecchi depth, 2016
clearer than 60% of the 1,251 monitored lakes in Ontario
Elevation
307 m

Today on the water

2.5 °C

Wind calm

Observed at Apsley, as of 5:00 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
Time6 a.m.9 a.m.12 p.m.3 p.m.6 p.m.9 p.m.12 a.m.3 a.m.
Wind km/hW 15W 15NW 30NW 30NW 15var. 5var. 5var. 5
Gusts km/h5050
Waves (est.) m0.10.10.20.20.1
Temp. °C57111312731
Precip. %4040402020000

Today: A mix of sun and cloud. 40 percent chance of showers this morning and early this afternoon. Wind becoming northwest 30 km/h gusting to 50 near noon. High 14. UV index 4 or moderate.

Weather: Apsley (local forecast), as of 5:02 a.m. EDT

Sun and moon

Civil dawn
6:52 a.m.
Sunrise
7:21 a.m.
Sunset
6:39 p.m.
Civil dusk
7:08 p.m.
Moonrise
6:13 a.m.
Moonset
5:58 p.m.
Moon
Waning crescent, 1% lit

Air Quality Health Index

2 low risk

Dorset, as of 4:00 a.m. EDT

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 1976 records a maximum depth of 9.1 m, drawn from 13 depth contours.

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 Depths are from government surveys and may be outdated.

Water

Clarity was measured with a Secchi disk in 12 years between 1997 and 2016; the latest annual mean is 3.9 m.

Water clarity (Secchi depth, m)
Total phosphorus (µg/L)