Severn River at Outlet of Muskrat Dam Lake water level

Name: Severn River at Outlet of Muskrat Dam Lake 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

River gauge, Severn River, Ontario, Canada

Directions

Low for late October

Water level

27.23m Down 0.02 m over the last 24 hours

Measured Oct 21, 2026, 03:15 AM CDT (1 hour ago)

Flow: 232 m³/s

History

7 days 30 days 1 year Years compared

20252026

Water level Normal range (10–90 %)

What this means

Low water at Severn River at Outlet of Muskrat Dam Lake: the gauge reads 27.23 m, below normal for late October.

The median for late October is 27.60 m, based on 20 years of readings, so the water level is 0.38 m below typical. On the same day last year the reading was 27.34 m, a difference of −0.11 m.

It is still going down, by 0.02 m over the past 24 hours. Without real rain upstream, that is unlikely to change quickly. The 30-day range is 27.11 m – 27.49 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: 27.60 m0.38 m below the median for this date
Normal for this date: 26.89 m – 28.73 m8 years in 10 fall in this range (20 years of records)
Same day last year: 27.34 m−0.11 m
Lowest and highest in 30 days: 27.11 m – 27.49 m
Lowest and highest in 12 months: 27.14 m – 27.93 m

Freshet, ice and paddling

Open-water season is the time for canoe trips and fishing, though rapids change character with every few centimetres of water.

Flood advisories come from the provincial river forecast centre.

About the Severn River

The Severn River is a river in northern Ontario. The northern Ontario river has its headwaters near the western border of the province. From the head of the Black Birch River, the Severn River is 982 km (610 mi) long, tying it with the Albany River for the title of longest river entirely in Ontario. Its drainage basin area is 102,800 km2 (39,700 sq mi), a small portion of which is in Manitoba. Its source is Deer Lake and flows northeasterly into Severn Lake, then by a second section to Hudson Bay where it ends at Fort Severn.

Weather at the gauge

Rain in the last 3 days: 1.2 mm. Rain that falls upstream can take hours or days to show up at a river gauge.

21 Wed 11° 3° – Wind 15 km/h

22 Thu 13° 3° – Wind 16 km/h

23 Fri 16° 7° – Wind 14 km/h

24 Sat 13° 4° 2.8 mm, 80% Wind 27 km/h

25 Sun 4° 1° – Wind 28 km/h

26 Mon 2° -1° 0.3 mm Wind 18 km/h

27 Tue 5° -1° 0.4 mm Wind 23 km/h

Forecast: Open-Meteo

Sunrise 07:45 AM Sunset 05:58 PM Daylight 10 hr, 13 min Waxing gibbous 76%

Map

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Windigo River above Muskrat Dam LakeRiver gauge, Windigo River	27.91 m	Low	+0.01 m	24 km

Questions and answers

Is the Severn River at Outlet of Muskrat Dam Lake higher than last year?

No, it is 0.11 m lower than on the same day last year, when the reading was 27.34 m.

What is a normal level for the Severn River at Outlet of Muskrat Dam Lake in late October?

The median for late October is 27.60 m. In 8 years out of 10 the reading falls between 26.89 m and 28.73 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 27.23 m on the gauge does not mean the water is that deep.

What is the water level of Severn River at Outlet of Muskrat Dam Lake today?

On Oct 21, 2026, 03:15 AM CDT, the water level was 27.23 m. Down 0.02 m over the last 24 hours.

Is Severn River at Outlet of Muskrat Dam Lake rising or falling?

Down 0.02 m over the last 24 hours. Steady over the last 7 days.

Is the level of Severn River at Outlet of Muskrat Dam Lake normal?

Low for late 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.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: Environment and Climate Change Canada – Water Survey of Canada
Station code: eccc:04CA002 (Agency page)
Coordinates: 53.48947, -91.51022 (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

Parameter	Last value	Time (UTC)	Quality
Water level	27.23 m	2026-10-21 08:15	Provisional
Flow	232 m³/s	2026-10-21 08:15	Provisional

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How to cite

Environment and Climate Change Canada – Water Survey of Canada: Severn River at Outlet of Muskrat Dam Lake (eccc:04CA002). Accessed October 21, 2026 via Nivelmap, https://nivelmap.com/en/canada/ontario/severn-river-at-outlet-of-muskrat-dam-lake

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