Tree River at The Mouth
Water level and flow at gauge 10QA001, Nunavut. The flow is normal for October (110% of the median). In the last 24 hours it has been rising.
Latest reading Oct 25, 6 AM local standard time (about an hour ago) · data checked · we check every 30 minutes
Compared with a normal October
Normal for October (middle half of 54 years of monthly averages): 29.8 m³/s1,052 cfs – 50.1 m³/s1,769 cfs, median 43.9 m³/s1,549 cfs. Right now it is at 110% of the median.
July 17, 2009 · approved records 1973–2024 (HYDAT). Right now the flow is 18% of that record.
Last 30 days
Hourly readings · shaded: normal range for this month
This year compared with past years
Daily flow
Normal range: monthly averages of 48 years (lighter band: 10th–90th percentile). Past years: approved daily means from HYDAT, the Water Survey of Canada archive (the latest year published is 2025). 2026: daily means of the provisional real-time readings collected by Canada River Levels since October 22, 2026.
Nearby gauges
| Burnside RiverThe Mouth · 167 km | 4.23 m13.88 ft | Very high |
| Coppermine RiverAbove Copper Creek · 176 km | 17.18 m56.35 ft | Normal |
| Fairy Lake RiverOutlet of Napaktulik Lake · 179 km | 7.80 m25.58 ft | Very low |
| Contwoyto LakeLupin Mine · 209 km | 443.27 m1,454.30 ft | Normal |
| Coppermine RiverOutlet of Point Lake · 264 km | — | Below normal |
| Point LakeThe Outlet · 265 km | 7.65 m25.09 ft | Below normal |
About this gauge
Station: 10QA001 · Tree River Near the Mouth
Location: 67.6350, -111.9022 · Nunavut
Water levels are measured from a local reference point at each gauge, not from sea level, so they cannot be compared between gauges.
Official sources
For flood warnings, advisories and approved data, always use these official services:
Questions
What is the water level of the Tree River at The Mouth today?
The latest reading (Oct 25, 6 AM, local standard time) is 2.23 m (7.30 ft) with a flow of 48.2 m³/s (1,702 cfs).
Is the Tree River at The Mouth high right now?
The flow is normal for October (110% of the median).
Is the Tree River rising or falling?
In the last 24 hours it has been rising.
What is the highest flow ever recorded on the Tree River at The Mouth?
270 m³/s (9,535 cfs) on July 17, 2009, the highest instantaneous flow in the approved records of the Water Survey of Canada (1973–2024). Events after 2024 are not yet in the approved archive.
Where does this data come from?
Gauge 10QA001 of the Water Survey of Canada (Environment and Climate Change Canada). Real-time data are provisional and may be revised. We check for new readings every 30 minutes. Canada River Levels is not an official source.