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SwedenHudson River at Green Island water level
River gauge, Hudson River, New York, United States
Right now
Below flood stage
Water level
- Flow
- 7,120 cfs
History
The forecast expects the river to rise to 16.40 ft by Wednesday, October 21 at 02:00 PM. Issued Wednesday, October 21 at 10:43 AM by NOAA National Weather Service.
What this means
The Hudson River at Green Island is at 15.86 ft, in the normal range.
It is 5.64 ft below the flood stage of 21.50 ft.
It has dropped 0.48 ft over the past 24 hours. The forecast expects the river to rise to 16.40 ft by Wednesday, October 21 at 02:00 PM. In the last month it has stayed between 15.75 ft and 16.90 ft.
Judged against the official flood stage for this gauge. How to read levels
Key numbers
- Highest on record
- 29.70 ftMarch 28, 1913
- Forecast peak
- 16.40 ftWednesday, October 21 at 02:00 PM
About this gauge
- Location
- Albany County
- Nearest town
- Green Island (0.9 km)
Town from GeoNames (CC BY 4.0)
Floating and fishing near Hudson River at Green Island
Normal flows mean predictable rapids and good access at most put-ins.
Flood stage here is 21.50 ft, 5.64 ft above the current reading. Beyond it, the National Weather Service also defines moderate and major flood stages.
What happens at each level
- 29.00 ft
- There are several feet of water on Riverside Street, three feet water in the former Cluett-Peabody building, First and Second Streets in Troy are flooded, and the Congress Street Bridge is closed.
- 27.00 ft
- The river is at major flood stage. Water reaches numerous homes in the Village of Wateford and in riverfront sections of Troy. About 4 feet water at foot of State Street.
- 24.00 ft
- The river is at moderate flood stage. Water reaches mobile homes along the river front in Lansingburgh.
- 23.00 ft
- Water reaches streets in Waterford Village and Matsons Shipyard on Van Schaick Island. Some basements flood.
- 21.50 ft
- Minor flood stage. Water floods onto the Mohawk Wharf in Village of Waterford.
- 21.00 ft
- Action stage. Water is just six inches below the wharf in Waterford.
- 15.86 ft
- Right now
Impact statements from the U.S. National Weather Service.
Highest crests on record
Chance of at least minor flooding in October to December: 7 %.
| Rank | Level | Date |
|---|---|---|
| 1 | 29.70 ft | March 28, 1913 |
| 2 | 29.48 ft | March 19, 1936 |
| 3 | 27.10 ft | September 22, 1938 |
| 4 | 27.05 ft | August 29, 2011 |
| 5 | 27.05 ft | December 31, 1948 |
| 6 | 26.53 ft | March 14, 1977 |
| 7 | 26.22 ft | January 20, 1996 |
| 8 | 24.82 ft | March 6, 1964 |
| 9 | 24.77 ft | January 9, 1998 |
| 10 | 24.41 ft | April 5, 1960 |
About the Hudson River
The Hudson River is a 315-mile (507 km) river that flows from north to south largely through eastern New York state. It originates in the Adirondack Mountains at Henderson Lake in the town of Newcomb, and flows south to New York Bay, a tidal estuary between New York City and Jersey City, before draining into the Atlantic Ocean. The river marks out the border between the U.S. states of New York and New Jersey and many upstate New York county borders. The lower half of the river is a tidal estuary, deeper than the body of water into which it flows, occupying the Hudson Fjord, an inlet that was carved out by North American glaciers. Even as far north as the city of Troy, the flow of the river changes direction with the tides.
- Length
- 306 mi
- Catchment area
- 13,359 mi²
- Mean discharge
- 7,416 ft³/s
- Mouth
- Upper New York Bay
Text and image from Wikipedia and Wikimedia Commons, licensed under CC BY-SA.
Facts from Wikidata (CC0)
Weather at the gauge
The forecast is not available right now.
Map
Other gauges on the Hudson River
| Gauge | Level | Compared with normal | 24 hours | Distance |
|---|---|---|---|---|
| Hudson River near NewcombRiver gauge, Hudson River | 2.90 ft | Below flood stage | −0.27 ft | 87 mi |
| Hudson River at North CreekRiver gauge, Hudson River | 3.77 ft | Below flood stage | −0.15 ft | 67 mi |
| Hudson River at HadleyRiver gauge, Hudson River | 3.29 ft | Below flood stage | −0.21 ft | 40 mi |
| Hudson River at Fort EdwardRiver gauge, Hudson River | 20.99 ft | Below flood stage | −0.02 ft | 36 mi |
| Hudson River above Lock 1 near WaterfordRiver gauge, Hudson River | 29.98 ft | Below flood stage | −0.38 ft | 5.5 mi |
| Hudson River at Lock 1 near WaterfordRiver gauge, Hudson River | 29.93 ft | No reference yet | −0.38 ft | 5.2 mi |
Nearby gauges
| Gauge | Level | Compared with normal | 24 hours | Distance |
|---|---|---|---|---|
| Mohawk River at CohoesRiver gauge, Mohawk River | 9.78 ft | Below flood stage | +0.87 ft | 2.5 mi |
| Patroon Creek at AlbanyRiver gauge, Patroon Creek | 12.7 cfs | Low | −0.4 cfs | 7 mi |
| Mohawk River at Vischer Ferry DamRiver gauge, Mohawk River | 12.08 ft | Normal | +0.02 ft | 9 mi |
| Normans Kill at AlbanyRiver gauge, Normans Kill | 51.6 cfs | Normal | −4.0 cfs | 10 mi |
| Normans Kill at KarlsfeldRiver gauge, Normans Kill | 8.43 ft | Normal | −0.01 ft | 11 mi |
| Mohawk River at RexfordRiver gauge, Mohawk River | 12.10 ft | Normal | +0.02 ft | 12 mi |
| Mohawk River at Freeman's Bridge at SchenectadyRiver gauge, Mohawk River | 2,060 cfs | Low | +340 cfs | 13 mi |
| Valatie Kill near NassauRiver gauge, Valatie Kill | 109 cfs | Very high | −2.0 cfs | 15 mi |
Questions and answers
What is flood stage for the Hudson River at Green Island?
The official flood stage is 21.50 ft. The level is currently 5.64 ft below it.
Where exactly is Hudson River at Green Island measured?
The gauge is in Albany County, New York.
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 Hudson River at Green Island today?
On Oct 21, 2026, 12:15 PM EDT, the water level was 15.86 ft. Down 0.48 ft over the last 24 hours.
Is Hudson River at Green Island rising or falling?
Down 0.48 ft over the last 24 hours. Down 0.75 ft over the last 7 days.
Is the level of Hudson River at Green Island normal?
Below flood stage. Judged against the official flood stage for this gauge.
What is the highest water level ever recorded at Hudson River at Green Island?
The highest level on record is 29.70 ft on March 28, 1913.
For specialists
Station codes, datum, parameters, data quality and downloads
- Operator
- U.S. Geological Survey
- Station code
usgs:01358000(Agency page)- Coordinates
42.75225, -73.68908(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 | 15.86 ft | 2026-10-21 16:15 | Provisional |
| Flow | 7,120 cfs | 2026-10-21 16:15 | Provisional |
Download
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How to cite
U.S. Geological Survey: Hudson River at Green Island (usgs:01358000). Accessed October 21, 2026 via Nivelmap, https://nivelmap.com/en/united-states/new-york/hudson-river-at-green-island
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