Blackstone River at Chapman Lake Airstrip
Water level and flow at gauge 10MA003, Yukon. The flow is well above normal for October (267% 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 31 years of monthly averages): 3.53 m³/s125 cfs – 5.82 m³/s206 cfs, median 4.75 m³/s168 cfs. Right now it is at 267% of the median.
May 28, 1993 · approved records 1984–2024 (HYDAT). Right now the flow is 2% 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 29 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
| Ogilvie RiverKilometre 197.9 Dempster Highway · 51 km | 6.70 m21.99 ft | Very high |
| North Klondike RiverThe Mouth · 101 km | 1.77 m5.82 ft | Normal |
| Little South Klondike RiverBelow Ross Creek · 106 km | 4.17 m13.67 ft | Very high |
| Yukon RiverDawson · 108 km | 1.11 m3.64 ft | Normal |
| Klondike RiverAbove Bonanza Creek · 110 km | 0.94 m3.07 ft | Normal |
| Indian RiverAbove the Mouth · 142 km | 1.67 m5.49 ft | Above normal |
About this gauge
Station: 10MA003 · Blackstone River Near Chapman Lake Airstrip
Location: 64.9014, -138.2760 · 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 Blackstone River at Chapman Lake Airstrip today?
The latest reading (Oct 25, 6 AM, local standard time) is 3.87 m (12.69 ft) with a flow of 12.7 m³/s (448 cfs).
Is the Blackstone River at Chapman Lake Airstrip high right now?
The flow is well above normal for October (267% of the median).
Is the Blackstone River rising or falling?
In the last 24 hours it has been rising.
What is the highest flow ever recorded on the Blackstone River at Chapman Lake Airstrip?
774 m³/s (27,334 cfs) on May 28, 1993, the highest instantaneous flow in the approved records of the Water Survey of Canada (1984–2024). Events after 2024 are not yet in the approved archive.
Where does this data come from?
Gauge 10MA003 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.