Arrow Reservoir at Nakusp water level

Name: Arrow Reservoir at Nakusp 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

Reservoir, Arrow Reservoir, British Columbia, Canada

Directions

High for mid-October

Surface elevation

435.74m Up 0.02 m over the last 24 hours

Measured Oct 19, 2026, 03:35 PM MDT (1 hour ago)

History

What this means

There is plenty of water in Arrow Reservoir at Nakusp: 435.74 m, above normal for mid-October.

That puts it 3.66 m above the median of 432.08 m for mid-October, based on 11 years of readings. A year ago it stood at 428.53 m (+7.21 m).

The water is rising: up 0.02 m over the past 24 hours. Over the past 30 days it has moved between 435.50 m and 435.98 m.

Many reservoirs are drawn down through summer and fall; most of the refill comes later, with winter rain or spring snowmelt.

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

Key numbers

Median for this date: 432.08 m3.66 m above the median for this date
Normal for this date: 427.68 m – 435.98 m8 years in 10 fall in this range (11 years of records)
Same day last year: 428.53 m+7.21 m
Lowest and highest in 30 days: 435.50 m – 435.98 m
Lowest and highest in 12 months: 426.15 m – 435.96 m

Swimming and boating at Arrow Reservoir at Nakusp

A little more water than usual mostly means narrower beaches. Ramps and docks generally work as normal, but watch for floating debris after storms.

If you swim, pick a spot with an easy way out, and remember that drop-offs move as the level changes.

Weather at the gauge

No rain in the last 3 days.

19 Mon 9° 3° – Wind 6 km/h

20 Tue 14° 6° – Wind 12 km/h

21 Wed 18° 5° – Wind 7 km/h

22 Thu 19° 6° – Wind 6 km/h

23 Fri 12° 3° 0.5 mm, 42% Wind 10 km/h

24 Sat 11° 1° – Wind 5 km/h

25 Sun 11° 4° – Wind 6 km/h

Forecast: Open-Meteo

Sunrise 08:21 AM Sunset 06:53 PM Daylight 10 hr, 33 min First quarter 63%

Map

Other gauges on Arrow Reservoir

Gauge	Level	Compared with normal	24 hours	Distance
Arrow Reservoir at FauquierReservoir, Arrow Reservoir	435.81 m	High	+0.02 m	45 km

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Kuskanax Creek near NakuspRiver gauge, Kuskanax Creek	0.37 m	Normal	−0.01 m	6.8 km
Whatshan River below Barnes CreekRiver gauge, Whatshan River	3.30 m	Normal	±0	44 km
Inonoaklin Creek above Valley CreekRiver gauge, Inonoaklin Creek	1.35 m	Low	±0	47 km
Sugar Lake Reservoir at the OutletReservoir, Sugar Lake Reservoir	7.75 m	Low	−0.03 m	54 km
Shuswap River at Outlet of Sugar Lake ReservoirRiver gauge, Shuswap River	1.89 m	Normal	±0	54 km
Duncan River below Lardeau RiverRiver gauge, Duncan River	1.74 m	Normal	±0	60 km
Duncan Reservoir at Duncan DamReservoir, Duncan Reservoir	572.29 m	Normal	−0.03 m	60 km
Keen Creek below Kyawats CreekRiver gauge, Keen Creek	1.09 m	Normal	±0	63 km

Questions and answers

How does Arrow Reservoir at Nakusp compare with last year?

It is 7.21 m higher than on the same day last year, when the reading was 428.53 m.

What is a normal level for Arrow Reservoir at Nakusp in mid-October?

The median for mid-October is 432.08 m. In 8 years out of 10 the reading falls between 427.68 m and 435.98 m, based on 11 years of records.

Is Arrow Reservoir at Nakusp really 435.74 m deep?

No. 435.74 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 Arrow Reservoir at Nakusp today?

On Oct 19, 2026, 03:35 PM MDT, the surface elevation was 435.74 m. Up 0.02 m over the last 24 hours.

Is Arrow Reservoir at Nakusp rising or falling?

Up 0.02 m over the last 24 hours. Down 0.03 m over the last 7 days.

Is the level of Arrow Reservoir at Nakusp normal?

High 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:08NE104 (Agency page)
Coordinates: 50.23744, -117.79785 (WGS84)
Vertical datum: GEODETIC SURVEY OF CANADA DATUM (LOCAL 1970 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	435.74 m	2026-10-19 21:35	Provisional

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How to cite

Environment and Climate Change Canada – Water Survey of Canada: Arrow Reservoir at Nakusp (eccc:08NE104). Accessed October 19, 2026 via Nivelmap, https://nivelmap.com/en/canada/british-columbia/arrow-reservoir-at-nakusp

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