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Great Slave Lake at Outlet of Barnston River water level

Lake, Great Slave Lake, Northwest Territories, Canada

Directions

Right now

Latest reading

Water level

97.16m Down 0.05 m over the last 24 hours

80 90 100 110

History

History
97.197.297.3mOct 14Oct 15Oct 17Oct 19Oct 2097.197.297.3mOct 14Oct 17Oct 20
97.197.297.3mSep 21Sep 28Oct 5Oct 13Oct 2097.197.297.3mSep 21Oct 6Oct 20
96.696.897.097.2mJanMarMayJulSepNov202696.696.897.097.2mJanAprJulOct2026

202420252026

Water level

What this means

Great Slave Lake at Outlet of Barnston River reads 97.16 m as of Oct 20, 2026, 04:30 PM MDT. There is no published reference for this lake yet, so we can't say whether that is high or low for the season.

It has dropped 0.05 m over the past 24 hours. In the last month it has stayed between 97.11 m and 97.29 m.

Over the past seven days the change adds up to −0.06 m.

The agency publishes no normal range for this gauge yet, so we show the trend only. How to read levels

Key numbers

Lowest and highest in 30 days
97.11 m – 97.29 m
Lowest and highest in 12 months
97.15 m – 97.27 m

On the water at Great Slave Lake at Outlet of Barnston River

Watch the chart rather than the single number; it shows whether the shoreline is moving.

Wear a life jacket on the water. Most boating deaths involve people who were not wearing one.

Weather at the gauge

Rain in the last 3 days: 2.2 mm.

20 Tue 2° -2° – Wind 15 km/h
21 Wed 6° 2° – Wind 16 km/h
22 Thu 2° -1° – Wind 12 km/h
23 Fri -1° -4° – Wind 14 km/h
24 Sat -1° -4° – Wind 13 km/h
25 Sun 0° -8° – Wind 16 km/h
26 Mon 1° 0° – Wind 16 km/h

Forecast: Open-Meteo

Sunrise 08:22 AM Sunset 05:50 PM Daylight 9 hr, 28 min Waxing gibbous 72%

Map

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Barnston River near the MouthRiver gauge, Barnston River 7.46 m Normal −0.01 m 0.2 km
Waldron River near the MouthRiver gauge, Waldron River 2.11 m Normal ±0 20 km
Hoarfrost River near the MouthRiver gauge, Hoarfrost River 7.83 m Normal ±0 48 km

Questions and answers

What is the water level of Great Slave Lake at Outlet of Barnston River today?

On Oct 20, 2026, 04:30 PM MDT, the water level was 97.16 m. Down 0.05 m over the last 24 hours.

Is Great Slave Lake at Outlet of Barnston River rising or falling?

Down 0.05 m over the last 24 hours. Down 0.06 m over the last 7 days.

Is the level of Great Slave Lake at Outlet of Barnston River normal?

The agency publishes no normal range for this gauge yet, so we show the trend only.

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.

Where does this data come from?

The values come directly from Environment and Climate Change Canada – Water Survey of Canada, the official operator of this gauge, and are published under the Open Government Licence – Canada. We do not estimate or model live values.

For specialists

Station codes, datum, parameters, data quality and downloads
Operator
Environment and Climate Change Canada – Water Survey of Canada
Station code
eccc:07SC007 (Agency page)
Coordinates
62.94059, -110.17942 (WGS84)
Vertical datum
station datum (assumed datum)
Update interval
every hour
Licence
Open Government Licence – Canada. Contains information licensed under the Open Government Licence – Canada

Published series

ParameterLast valueTime (UTC)Quality
Water level 97.16 m 2026-10-20 22:30 Provisional

Download

Embed this gauge

Add a live card for this gauge to your website. It updates on its own and links back here.

How to cite

Environment and Climate Change Canada – Water Survey of Canada: Great Slave Lake at Outlet of Barnston River (eccc:07SC007). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/canada/northwest-territories/great-slave-lake-at-outlet-of-barnston-river

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.