La Martre River below Outlet of Lac la Martre
Water level and flow at gauge 07TA001, Northwest Territories. The flow is below normal for October (59% of the median). In the last 24 hours it has been steady.
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 50 years of monthly averages): 23.3 m³/s822 cfs – 45.6 m³/s1,609 cfs, median 35.5 m³/s1,255 cfs. Right now it is at 59% of the median.
July 1, 2006 · approved records 1977–2024 (HYDAT). Right now the flow is 22% 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 49 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
A mix of sun and cloud. Wind south 20 km/h gusting to 40. High plus 1. Wind chill minus 15 this morning.
Partly cloudy. Wind south 20 km/h gusting to 40 becoming light overnight. Low minus 6. Wind chill minus 10 overnight.
Mainly sunny. Wind up to 15 km/h. High minus 1. Wind chill minus 10 in the morning and minus 5 in the afternoon. UV index 1 or low.
Cloudy. Low minus 3.
Forecast for Whati (56 km away) from Environment and Climate Change Canada, issued . Full official forecast ↗ · we check for new forecasts every 2 hours.
Nearby gauges
| Frank ChannelAbove Great Slave Lake · 63 km | 98.78 m324.08 ft | No normal yet |
| Snare RiverBelow Ghost River · 123 km | 26.26 m86.14 ft | Very low |
| Camsell RiverAbove Lac Ste. Croix · 130 km | 8.86 m29.06 ft | Below normal |
| Yellowknife RiverAbove Quyta Lake · 140 km | 8.76 m28.75 ft | Below normal |
| Bluefish LakeYellowknife · 145 km | 185.76 m609.44 ft | Normal |
| Yellowknife RiverInlet To Prosperous Lake · 146 km | 152.77 m501.20 ft | Below normal |
About this gauge
Station: 07TA001 · La Martre River Below Outlet of Lac la Martre
Location: 63.1077, -116.9746 · 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 La Martre River below Outlet of Lac la Martre today?
The latest reading (Oct 25, 6 AM, local standard time) is 3.75 m (12.31 ft) with a flow of 21.1 m³/s (745 cfs).
Is the La Martre River below Outlet of Lac la Martre high right now?
The flow is below normal for October (59% of the median).
Is the La Martre River rising or falling?
In the last 24 hours it has been steady.
What is the highest flow ever recorded on the La Martre River below Outlet of Lac la Martre?
94.0 m³/s (3,320 cfs) on July 1, 2006, the highest instantaneous flow in the approved records of the Water Survey of Canada (1977–2024). Events after 2024 are not yet in the approved archive.
Where does this data come from?
Gauge 07TA001 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.