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SwedenGrass River at Chase Mills water level
River gauge, Grass River, New York, United States
Right now
Normal for mid-October
Water level
- Flow
- 1,240 cfs
History
The forecast expects the river to fall to 5.20 ft by Monday, October 19 at 08:00 AM. Issued Saturday, October 17 at 11:33 AM by NOAA National Weather Service.
What this means
The Grass River at Chase Mills is at 5.21 ft, in the normal range for mid-October.
It has dropped 0.05 ft over the past 24 hours. The forecast expects the river to fall to 5.20 ft by Monday, October 19 at 08:00 AM. In the last month it has stayed between 5.21 ft and 5.28 ft.
Compared with 5 years of daily readings for this time of year. How to read levels
Key numbers
- Highest on record
- 8.48 ftAugust 11, 2024
- Forecast peak
- 5.30 ftSunday, October 18 at 08:00 AM
Floating and fishing near Grass River at Chase Mills
Normal flows mean predictable rapids and good access at most put-ins.
Highest crests on record
| Rank | Level | Date |
|---|---|---|
| 1 | 8.48 ft | August 11, 2024 |
| 2 | 8.16 ft | April 9, 2014 |
| 3 | 7.53 ft | September 18, 2005 |
| 4 | 7.44 ft | May 17, 2011 |
| 5 | 7.34 ft | November 1, 2017 |
| 6 | 7.11 ft | March 28, 2004 |
| 7 | 6.97 ft | December 29, 2008 |
| 8 | 6.90 ft | April 3, 2008 |
| 9 | 6.87 ft | December 3, 2006 |
| 10 | 6.83 ft | April 29, 2011 |
Weather at the gauge
The forecast is not available right now.
Map
Nearby gauges
| Gauge | Level | Compared with normal | 24 hours | Distance |
|---|---|---|---|---|
| Raquette River at RaymondvilleRiver gauge, Raquette River | 1,190 cfs | Normal | −150.0 cfs | 4.9 mi |
| St. Regis River at Brasher CenterRiver gauge, St. Regis River | 7.13 ft | Below flood stage | −0.05 ft | 15 mi |
| South Branch South Nation River near Winchester SpringsRiver gauge, South Branch South Nation River | 7.78 m | Very high | −0.31 m | 28 km |
| South Nation River at ChestervilleRiver gauge, South Nation River | 6.30 m | High | −0.04 m | 31 km |
| Raisin River at Black RiverRiver gauge, Raisin River | 5.25 m | Very high | −0.11 m | 31 km |
| Oswegatchie River near HeuveltonRiver gauge, Oswegatchie River | 2.91 ft | Below flood stage | +0.35 ft | 23 mi |
| South Nation River at SpencervilleRiver gauge, South Nation River | 11.15 m | Very high | ±0 | 37 km |
| North Branch South Nation River near HeckstonRiver gauge, North Branch South Nation River | 1.23 m | Very high | −0.16 m | 38 km |
Questions and answers
Is gage height the same as water depth?
No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.
What is the water level of Grass River at Chase Mills today?
On Oct 18, 2026, 11:00 AM EDT, the water level was 5.21 ft. Down 0.05 ft over the last 24 hours.
Is Grass River at Chase Mills rising or falling?
Down 0.05 ft over the last 24 hours.
Is the level of Grass River at Chase Mills normal?
Normal for mid-October. Compared with 5 years of daily readings for this time of year.
What is the highest water level ever recorded at Grass River at Chase Mills?
The highest level on record is 8.48 ft on August 11, 2024.
Is Grass River at Chase Mills expected to rise?
The forecast expects the river to fall to 5.20 ft by Monday, October 19 at 08:00 AM.
How often is this data updated?
The U.S. Geological Survey publishes a new reading every 15 minutes. This page refreshes within minutes of each update.
For specialists
Station codes, datum, parameters, data quality and downloads
- Operator
- U.S. Geological Survey
- Station code
usgs:04265432(Agency page)- Coordinates
44.84653, -75.07844(WGS84)- Vertical datum
- NAVD88
- Update interval
- every 15 minutes
- Licence
- Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision
Published series
| Parameter | Last value | Time (UTC) | Quality |
|---|---|---|---|
| Water level | 5.21 ft | 2026-10-18 15:00 | Provisional |
| Flow | 1,240 cfs | 2026-10-18 15:00 | Provisional |
Download
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How to cite
U.S. Geological Survey: Grass River at Chase Mills (usgs:04265432). Accessed October 18, 2026 via Nivelmap, https://nivelmap.com/en/united-states/new-york/grass-river-at-chase-mills
How we check values
Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.
Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer