South Macmillan River at Kilometre 407 Canol Road
Water level and flow at gauge 09BB001, Yukon. The flow is below normal for October (84% of the median). In the last 24 hours it has been falling.
Latest reading Oct 25, 5 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 33 years of monthly averages): 10.8 m³/s381 cfs – 16.5 m³/s583 cfs, median 12.5 m³/s441 cfs. Right now it is at 84% of the median.
August 14, 2021 · approved records 1975–2024 (HYDAT). Right now the flow is 5% 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 31 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
| Hess RiverAbove Emerald Creek · 66 km | 13.92 m45.66 ft | Below normal |
| Ross RiverRoss River · 142 km | 9.75 m32.00 ft | Normal |
| Pelly RiverRoss River · 143 km | 1.01 m3.31 ft | Normal |
| Pelly RiverBelow Vangorda Creek · 165 km | 4.52 m14.82 ft | Very low |
| Keele RiverAbove Twitya River · 177 km | 2.75 m9.01 ft | Normal |
| Hyland RiverKilometre 108.5 Nahanni Range Road · 199 km | 0.33 m1.07 ft | Very low |
About this gauge
Station: 09BB001 · South Macmillan River at Kilometre 407 Canol Road
Location: 62.9257, -130.5380 · Yukon
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 South Macmillan River at Kilometre 407 Canol Road today?
The latest reading (Oct 25, 5 AM, local standard time) is 1.40 m (4.59 ft) with a flow of 10.5 m³/s (371 cfs).
Is the South Macmillan River at Kilometre 407 Canol Road high right now?
The flow is below normal for October (84% of the median).
Is the South Macmillan River rising or falling?
In the last 24 hours it has been falling.
What is the highest flow ever recorded on the South Macmillan River at Kilometre 407 Canol Road?
225 m³/s (7,946 cfs) on August 14, 2021, the highest instantaneous flow in the approved records of the Water Survey of Canada (1975–2024). Events after 2024 are not yet in the approved archive.
Where does this data come from?
Gauge 09BB001 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.