Prosperous Lake near McMeekan Bay water level

Name: Prosperous Lake near McMeekan Bay water level (Environment and Climate Change Canada – Water Survey of Canada)
Creator: Environment and Climate Change Canada – Water Survey of Canada
License: https://open.canada.ca/en/open-government-licence-canada

Lake, Prosperous Lake, Northwest Territories, Canada

Directions

Low for mid-October

Surface elevation

158.09m Steady over the last 24 hours

Measured Oct 20, 2026, 12:35 PM MDT (1 hour ago)

History

What this means

Water is short at Prosperous Lake near McMeekan Bay: the latest reading of 158.09 m is below normal for mid-October.

The median for mid-October is 158.16 m, based on 11 years of readings, so the water level is 0.07 m below typical. On the same day last year the reading was 158.19 m, a difference of −0.10 m.

It has barely moved over the past 24 hours. The 30-day range is 158.08 m – 158.15 m.

Lakes and reservoirs often sit lower in fall after a summer of evaporation and use, and recover with winter rain and spring snowmelt.

Compared with 11 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date: 158.16 m0.07 m below the median for this date
Normal for this date: 158.04 m – 158.53 m8 years in 10 fall in this range (11 years of records)
Same day last year: 158.19 m−0.10 m
Lowest and highest in 30 days: 158.08 m – 158.15 m
Lowest and highest in 12 months: 158.08 m – 158.22 m

Boating and fishing at Prosperous Lake near McMeekan Bay

At low levels, launching can mean a long walk or a closed ramp, and shallow points stick out further than charts suggest.

Conditions at the shore change with the level, so check with the agency that runs the lake before a trip.

Weather at the gauge

Rain in the last 3 days: 1.6 mm.

20 Tue 5° -3° – Wind 19 km/h

21 Wed 8° 1° – Wind 20 km/h

22 Thu 2° -2° – Wind 11 km/h

23 Fri 1° -3° – Wind 6 km/h

24 Sat 1° -3° – Wind 12 km/h

25 Sun 1° -5° – Wind 14 km/h

26 Mon 1° -1° – Wind 15 km/h

Forecast: Open-Meteo

Sunrise 08:37 AM Sunset 06:07 PM Daylight 9 hr, 30 min Waxing gibbous 71%

Map

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Prelude Lake near YellowknifeLake, Prelude Lake	169.05 m	Normal	±0	11 km
Baker Creek at Outlet of Lower Martin LakeRiver gauge, Baker Creek	28.95 m	Low	±0	13 km
Yellowknife River at Inlet to Prosperous LakeRiver gauge, Yellowknife River	152.77 m	Normal	+0.05 m	15 km
Great Slave Lake at Yellowknife BayLake, Great Slave Lake	156.58 m	Normal	+0.06 m	15 km
Bluefish Lake near YellowknifeLake, Bluefish Lake	185.80 m	Low	+0.02 m	16 km
Duncan Lake near YellowknifeLake, Duncan Lake	212.15 m	Normal	±0	30 km
Cameron River below Reid LakeRiver gauge, Cameron River	1.85 m	Normal	+0.01 m	33 km
Beaulieu River near Great Slave LakeRiver gauge, Beaulieu River	2.86 m	Normal	−0.01 m	74 km

Questions and answers

Is Prosperous Lake near McMeekan Bay higher than last year?

No, it is 0.10 m lower than on the same day last year, when the reading was 158.19 m.

What is a normal level for Prosperous Lake near McMeekan Bay in mid-October?

The median for mid-October is 158.16 m. In 8 years out of 10 the reading falls between 158.04 m and 158.53 m, based on 11 years of records.

Is Prosperous Lake near McMeekan Bay really 158.09 m deep?

No. 158.09 m is the height of the water surface above sea level (or the agency's vertical datum), not the depth of the water.

What is the water level of Prosperous Lake near McMeekan Bay today?

On Oct 20, 2026, 12:35 PM MDT, the surface elevation was 158.09 m. Steady over the last 24 hours.

Is Prosperous Lake near McMeekan Bay rising or falling?

Steady over the last 24 hours. Steady over the last 7 days.

Is the level of Prosperous Lake near McMeekan Bay normal?

Low for mid-October. Compared with 11 years of daily readings for this time of year.

How often is this data updated?

Environment and Climate Change Canada – Water Survey of Canada publishes a new reading every hour. This page refreshes within minutes of each update.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: Environment and Climate Change Canada – Water Survey of Canada
Station code: eccc:07SB014 (Agency page)
Coordinates: 62.54547, -114.16353 (WGS84)
Vertical datum: GEODETIC SURVEY OF CANADA DATUM (LOCAL 1976 ADJ.)
Update interval: every hour
Licence: Open Government Licence – Canada. Contains information licensed under the Open Government Licence – Canada

Published series

Parameter	Last value	Time (UTC)	Quality
Surface elevation	158.09 m	2026-10-20 18:35	Provisional

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How to cite

Environment and Climate Change Canada – Water Survey of Canada: Prosperous Lake near McMeekan Bay (eccc:07SB014). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/canada/northwest-territories/prosperous-lake-near-mcmeekan-bay

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer