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Cat Arm Reservoir near Spillway water level

Reservoir, Cat Arm Reservoir, Newfoundland and Labrador, Canada

Directions

Right now

Normal for mid-October

Surface elevation

391.77m Steady over the last 24 hours

391 392 393

History

History
391392mOct 13Oct 15Oct 17Oct 18Oct 20391392mOct 13Oct 17Oct 20
391392393mSep 20Sep 28Oct 5Oct 12Oct 20391392393mSep 20Oct 5Oct 20
388390393mOct 2025Jan 2026Apr 2026Jul 2026Oct 2026388390393mOct 2025Apr 2026Oct 2026
385388390393mOct 2016Apr 2019Oct 2021Apr 2024Oct 2026385388390393mOct 2016Oct 2021Oct 2026
388390393mJanMarMayJulSepNov2026388390393mJanAprJulOct2026

202120222023202420252026

Surface elevation Normal range (10–90 %)

What this means

Nothing unusual at Cat Arm Reservoir near Spillway right now: the water level of 391.77 m is in the normal range for mid-October.

The median for mid-October is 391.82 m, based on 11 years of readings, so the water level is 0.05 m below typical. On the same day last year the reading was 390.61 m, a difference of +1.16 m.

It has barely moved over the past 24 hours. Over the past 30 days it has moved between 391.51 m and 391.92 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
391.82 m0.05 m below the median for this date
Normal for this date
390.62 m – 392.87 m8 years in 10 fall in this range (11 years of records)
Same day last year
390.61 m+1.16 m
Lowest and highest in 30 days
391.51 m – 391.92 m
Lowest and highest in 12 months
390.45 m – 391.96 m

Swimming and boating at Cat Arm Reservoir near Spillway

At a normal level, ramps and marinas generally run as usual, and fishing tends to follow the season more than the water level.

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

Rain in the last 3 days: 19 mm.

19 Mon 5° -3° – Wind 31 km/h
20 Tue 7° 2° 0.1 mm Wind 30 km/h
21 Wed 5° 0° 0.5 mm, 33% Wind 15 km/h
22 Thu 7° 1° 2.4 mm, 32% Wind 18 km/h
23 Fri 3° -1° 25 mm, 72% Wind 41 km/h
24 Sat 1° 0° 23 mm, 53% Wind 25 km/h
25 Sun 1° -1° 0.7 mm, 30% Wind 25 km/h

Forecast: Open-Meteo

Sunrise 07:48 AM Sunset 06:18 PM Daylight 10 hr, 30 min First quarter 68%

Map

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Main River at Paradise PoolRiver gauge, Main River 1.28 m Normal −0.12 m 34 km
Greavett Brook above Portland Creek PondRiver gauge, Greavett Brook 0.83 m Normal −0.06 m 48 km
South West Brook near Baie VerteRiver gauge, South West Brook 1.25 m Normal −0.04 m 54 km
Upper Humber River above Black BrookRiver gauge, Upper Humber River 1.13 m Normal −0.13 m 58 km
Torrent River at Bristol'S PoolRiver gauge, Torrent River 1.34 m High +0.04 m 61 km

Questions and answers

Is Cat Arm Reservoir near Spillway higher than last year?

Yes, it is 1.16 m higher than on the same day last year, when the reading was 390.61 m.

What is a normal level for Cat Arm Reservoir near Spillway in mid-October?

The median for mid-October is 391.82 m. In 8 years out of 10 the reading falls between 390.62 m and 392.87 m, based on 11 years of records.

Is Cat Arm Reservoir near Spillway really 391.77 m deep?

No. 391.77 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 Cat Arm Reservoir near Spillway today?

On Oct 20, 2026, 09:20 AM GMT-2:30, the surface elevation was 391.77 m. Steady over the last 24 hours.

Is Cat Arm Reservoir near Spillway rising or falling?

Steady over the last 24 hours. Up 0.18 m over the last 7 days.

Is the level of Cat Arm Reservoir near Spillway normal?

Normal 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:02YF002 (Agency page)
Coordinates
50.07561, -56.91600 (WGS84)
Vertical datum
NEWFOUNDLAND HYDRO 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
Surface elevation 391.77 m 2026-10-20 11:50 Provisional

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How to cite

Environment and Climate Change Canada – Water Survey of Canada: Cat Arm Reservoir near Spillway (eccc:02YF002). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/canada/newfoundland-and-labrador/cat-arm-reservoir-near-spillway

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.