Twenty Mile Creek above Smithville
Water level and flow at gauge 02HA020, Ontario. The flow is below normal for October (1% of the median). In the last 24 hours it has been falling.
Latest reading Oct 25, 9 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 30 years of monthly averages): 0.12 m³/s4.11 cfs – 1.42 m³/s50.2 cfs, median 0.35 m³/s12.5 cfs. Right now it is at 1% of the median.
February 12, 2009 · approved records 1987–2025 (HYDAT). Right now the flow is 0% of that record.
64% lower than on October 25, 2025 (0.01 m³/s0.39 cfs)
approved daily mean (HYDAT)
Last 30 days
Hourly readings · shaded: normal range for this month
This year compared with past years
Daily flow
Normal range: monthly averages of 39 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. Fog patches dissipating this morning. High 18. UV index 4 or moderate.
A few clouds. Low 10.
A mix of sun and cloud. Becoming cloudy in the morning. High 17. UV index 3 or moderate.
Cloudy periods. Low plus 3.
Forecast for Lincoln (9 km away) from Environment and Climate Change Canada, issued . Full official forecast ↗ · we check for new forecasts every 2 hours.
Nearby gauges
| Welland RiverBelow Caistor Corners · 11 km | 0.89 m2.93 ft | Below normal |
| Twenty Mile CreekBalls Falls · 15 km | 5.54 m18.16 ft | Below normal |
| Oswego CreekCanborough · 17 km | 2.15 m7.04 ft | Normal |
| Twelve Mile CreekPower Glen · 24 km | 5.09 m16.70 ft | Very low |
| Grindstone CreekHidden Valley Park · 32 km | 8.33 m27.33 ft | Above normal |
| McKenzie CreekCaledonia · 32 km | 1.21 m3.98 ft | Very low |
About this gauge
Station: 02HA020 · Twenty Mile Creek Above Smithville
Location: 43.1156, -79.5662 · Ontario
Same river: Balls Falls
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 Twenty Mile Creek above Smithville today?
The latest reading (Oct 25, 9 AM, local standard time) is 2.87 m (9.41 ft) with a flow of 0.00 m³/s (0.14 cfs).
Is the Twenty Mile Creek above Smithville high right now?
The flow is below normal for October (1% of the median).
Is the Twenty Mile Creek rising or falling?
In the last 24 hours it has been falling.
What is the highest flow ever recorded on the Twenty Mile Creek above Smithville?
106 m³/s (3,743 cfs) on February 12, 2009, the highest instantaneous flow in the approved records of the Water Survey of Canada (1987–2025). Events after 2025 are not yet in the approved archive.
How does the Twenty Mile Creek above Smithville compare with a year ago?
The flow is 64% lower than on October 25, 2025 (0.01 m³/s (0.39 cfs), approved daily mean (HYDAT)).
Where does this data come from?
Gauge 02HA020 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.