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La Martre River below Outlet of Lac La Martre water level

River gauge, La Martre River, Northwest Territories, Canada

Directions

Right now

Low for mid-October

Water level

3.81m Steady over the last 24 hours

Flow
24.0 m³/s
3.8 4.0 4.2

History

History
3.84.04.2mOct 14Oct 15Oct 17Oct 19Oct 213.84.04.2mOct 14Oct 17Oct 21
3.84.04.2mSep 21Sep 28Oct 6Oct 13Oct 213.84.04.2mSep 21Oct 6Oct 21
Water level Normal range (10–90 %)

What this means

The La Martre River below Outlet of Lac La Martre is running below normal at 3.81 m.

That puts it 0.23 m below the median of 4.03 m for mid-October, based on 20 years of readings.

The level has held steady over the past 24 hours. Without real rain upstream, that is unlikely to change quickly. In the last month it has stayed between 3.72 m and 3.82 m.

Fall is often low-water season on rivers, and it usually takes a few days of steady rain to change that.

Compared with 20 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date
4.03 m0.23 m below the median for this date
Normal for this date
3.71 m – 4.20 m8 years in 10 fall in this range (20 years of records)
Lowest and highest in 30 days
3.72 m – 3.82 m
Lowest and highest in 12 months
3.73 m – 3.81 m

On the river

Outside the spring freshet, most rivers settle into a gentler pattern, broken by storms.

Flood advisories come from the provincial river forecast centre.

Weather at the gauge

Rain in the last 3 days: 2.8 mm. Rain that falls upstream can take hours or days to show up at a river gauge.

20 Tue 4° -4° – Wind 15 km/h
21 Wed 8° 0° – Wind 21 km/h
22 Thu 1° -3° – Wind 13 km/h
23 Fri 0° -4° – Wind 7 km/h
24 Sat -2° -5° – Wind 11 km/h
25 Sun 0° -6° – Wind 11 km/h
26 Mon 1° -6° – Wind 14 km/h

Forecast: Open-Meteo

Sunrise 08:53 AM Sunset 06:13 PM Daylight 9 hr, 20 min Waxing gibbous 74%

Map

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Frank Channel above Great Slave LakeRiver gauge, Frank Channel 98.86 m No reference yet +0.04 m 63 km

Questions and answers

What is a normal level for the La Martre River below Outlet of Lac La Martre in mid-October?

The median for mid-October is 4.03 m. In 8 years out of 10 the reading falls between 3.71 m and 4.20 m, based on 20 years of records.

Is the river level the same as the depth of the water?

No. The reading is measured from a fixed zero mark at the gauge, so 3.81 m on the gauge does not mean the water is that deep.

What is the water level of La Martre River below Outlet of Lac La Martre today?

On Oct 20, 2026, 10:10 PM MDT, the water level was 3.81 m. Steady over the last 24 hours.

Is La Martre River below Outlet of Lac La Martre rising or falling?

Steady over the last 24 hours. Up 0.05 m over the last 7 days.

Is the level of La Martre River below Outlet of Lac La Martre normal?

Low for mid-October. Compared with 20 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.

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:07TA001 (Agency page)
Coordinates
63.10769, -116.97464 (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 3.81 m 2026-10-21 04:10 Provisional
Flow 24.0 m³/s 2026-10-21 04:10 Provisional

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How to cite

Environment and Climate Change Canada – Water Survey of Canada: La Martre River below Outlet of Lac La Martre (eccc:07TA001). Accessed October 21, 2026 via Nivelmap, https://nivelmap.com/en/canada/northwest-territories/la-martre-river-below-outlet-of-lac-la-martre

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.