Martin River at Highway No. 1
Water level and flow at gauge 10GC003, Northwest Territories. The flow is well below normal for October (8% of the median). In the last 24 hours it has been falling.
Latest reading Oct 25, 7 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 53 years of monthly averages): 1.21 m³/s42.7 cfs – 7.24 m³/s256 cfs, median 3.11 m³/s110 cfs. Right now it is at 8% of the median.
July 3, 1988 · approved records 1973–2024 (HYDAT). Right now the flow is 0% 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 52 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.
Weather near this gauge
Cloudy with 30 percent chance of flurries this morning. Clearing this afternoon. Fog patches dissipating near noon. Wind up to 15 km/h. High plus 2. Wind chill minus 10 this morning.
A few clouds. Fog patches developing this evening. Wind up to 15 km/h. Low minus 9. Wind chill minus 14 overnight.
Sunny. Increasing cloudiness late in the afternoon. Fog patches dissipating near noon. Wind up to 15 km/h. High minus 1. Wind chill minus 14 in the morning and minus 6 in the afternoon. UV index 1 or low.
Periods of snow. Low minus 3.
Forecast for Fort Simpson (14 km away) from Environment and Climate Change Canada, issued . Full official forecast ↗ · we check for new forecasts every 2 hours.
Nearby gauges
| Mackenzie RiverFort Simpson · 14 km | 4.67 m15.32 ft | Normal |
| Liard RiverThe Mouth · 26 km | 1.98 m6.49 ft | Very low |
| Mackenzie RiverStrong Point · 44 km | 7.23 m23.73 ft | Above normal |
| Jean-Marie RiverHighway No. 1 · 54 km | 1.64 m5.36 ft | Very low |
| Scotty CreekHighway No. 7 · 54 km | 2.90 m9.52 ft | Very low |
| Mackenzie RiverJean Marie River · 66 km | 94.58 m310.31 ft | No normal yet |
About this gauge
Station: 10GC003 · Martin River at Highway No. 1
Location: 61.8939, -121.6118 · Northwest Territories
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 Martin River at Highway No. 1 today?
The latest reading (Oct 25, 7 AM, local standard time) is 1.84 m (6.04 ft) with a flow of 0.24 m³/s (8.37 cfs).
Is the Martin River at Highway No. 1 high right now?
The flow is well below normal for October (8% of the median).
Is the Martin River rising or falling?
In the last 24 hours it has been falling.
What is the highest flow ever recorded on the Martin River at Highway No. 1?
952 m³/s (33,620 cfs) on July 3, 1988, 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 10GC003 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.