Little Southwest Miramichi River at Lyttleton
Water level and flow at gauge 01BP001, New Brunswick. The flow is well below normal for October (33% of the median). In the last 24 hours it has been steady.
Latest reading Oct 25, 10 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 74 years of monthly averages): 11.5 m³/s408 cfs – 32.6 m³/s1,151 cfs, median 19.7 m³/s696 cfs. Right now it is at 33% of the median.
April 29, 1973 · approved records 1967–2024 (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 73 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
Sunny. High 17. UV index 3 or moderate.
Clear. Increasing cloudiness after midnight then 30 percent chance of showers before morning. Wind becoming southwest 20 km/h this evening. Low plus 5.
A mix of sun and cloud with 30 percent chance of showers. Wind southwest 20 km/h becoming northwest 20 gusting to 40 in the afternoon. High 15. UV index 3 or moderate.
Cloudy periods. Low zero.
Forecast for Miramichi (34 km away) from Environment and Climate Change Canada, issued . Full official forecast ↗ · we check for new forecasts every 2 hours.
Nearby gauges
| Northwest Miramichi RiverTrout Brook · 18 km | 0.48 m1.57 ft | Very low |
| Southwest Miramichi RiverBlackville · 23 km | 0.47 m1.54 ft | Very low |
| Catamaran BrookRepap Road Bridge · 23 km | 0.44 m1.43 ft | Very low |
| Salmon RiverCastaway · 73 km | 10.07 m33.05 ft | Very low |
| Middle RiverBathurst · 76 km | 0.65 m2.13 ft | Very low |
| Coal Branch RiverBeersville · 84 km | 0.85 m2.79 ft | Below normal |
About this gauge
Station: 01BP001 · Little Southwest Miramichi River at Lyttleton
Location: 46.9360, -65.9074 · New Brunswick
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 Little Southwest Miramichi River at Lyttleton today?
The latest reading (Oct 25, 10 AM, local standard time) is 1.13 m (3.72 ft) with a flow of 6.41 m³/s (226 cfs).
Is the Little Southwest Miramichi River at Lyttleton high right now?
The flow is well below normal for October (33% of the median).
Is the Little Southwest Miramichi River rising or falling?
In the last 24 hours it has been steady.
What is the highest flow ever recorded on the Little Southwest Miramichi River at Lyttleton?
614 m³/s (21,683 cfs) on April 29, 1973, the highest instantaneous flow in the approved records of the Water Survey of Canada (1967–2024). Events after 2024 are not yet in the approved archive.
Where does this data come from?
Gauge 01BP001 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.