Big Creek at The Mouth
Water level and flow at gauge 09AH003, Yukon. The flow is normal for October (89% of the median). In the last 24 hours it has been steady.
Latest reading Oct 25, 5 AM local standard time (2 hours ago) · data checked · we check every 30 minutes
Compared with a normal October
Normal for October (middle half of 49 years of monthly averages): 2.91 m³/s103 cfs – 5.42 m³/s191 cfs, median 4.33 m³/s153 cfs. Right now it is at 89% of the median.
August 25, 2008 · approved records 1976–2023 (HYDAT). Right now the flow is 1% 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 47 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
| Pelly RiverPelly Crossing · 36 km | 1.82 m5.98 ft | Normal |
| Yukon RiverCarmacks · 65 km | 2.76 m9.07 ft | Below normal |
| Nordenskiold RiverBelow Rowlinson Creek · 69 km | 2.79 m9.16 ft | Normal |
| Aishihik LakeAishihik · 110 km | 3.81 m12.50 ft | Normal |
| Nisling RiverBelow Onion Creek · 112 km | 13.85 m45.44 ft | Normal |
| Sekulmun RiverOutlet of Sekulmun Lake · 115 km | — | Normal |
About this gauge
Station: 09AH003 · Big Creek Near the Mouth
Location: 62.5678, -137.0097 · Yukon
Same river: Km 1084.8 Alaska Highway
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 Big Creek at The Mouth today?
The latest reading (Oct 25, 5 AM, local standard time) is 6.09 m (19.99 ft) with a flow of 3.85 m³/s (136 cfs).
Is the Big Creek at The Mouth high right now?
The flow is normal for October (89% of the median).
Is the Big Creek rising or falling?
In the last 24 hours it has been steady.
What is the highest flow ever recorded on the Big Creek at The Mouth?
371 m³/s (13,102 cfs) on August 25, 2008, the highest instantaneous flow in the approved records of the Water Survey of Canada (1976–2023). Events after 2023 are not yet in the approved archive.
Where does this data come from?
Gauge 09AH003 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.