Hudson River at Green Island water level

Name: Hudson River at Green Island water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

River gauge, Hudson River, New York, United States

Directions

Below flood stage

Water level

15.82ft Down 0.80 ft over the last 24 hours

Measured Oct 20, 2026, 05:15 PM EDT (1 hour ago)

Flow: 3,830 cfs

History

7 days

Water level Forecast Minor flood stage

The forecast expects the river to fall to 15.40 ft by Thursday, October 22 at 08:00 PM. Issued Tuesday, October 20 at 10:49 AM by NOAA National Weather Service.

What this means

The Hudson River at Green Island is at 15.82 ft, in the normal range.

It is 5.68 ft below the flood stage of 21.50 ft.

It has dropped 0.80 ft over the past 24 hours. The forecast expects the river to fall to 15.40 ft by Thursday, October 22 at 08:00 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: 15.90 ftWednesday, October 21 at 02:00 AM

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, 5.68 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.
15.82 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

Weather at the gauge

No rain in the last 3 days.

20 Tue 62° 37° – Wind 12 mph

21 Wed 59° 35° – Wind 8 mph

22 Thu 62° 35° – Wind 11 mph

23 Fri 55° 41° – Wind 11 mph

24 Sat 60° 39° – Wind 4 mph

25 Sun 62° 42° – Wind 5 mph

26 Mon 66° 47° – Wind 4 mph

Forecast: Open-Meteo

Sunrise 07:14 AM Sunset 06:06 PM Daylight 10 hr, 52 min Waxing gibbous 72%

Map

Other gauges on the Hudson River

Gauge	Level	Compared with normal	24 hours	Distance
Hudson River near NewcombRiver gauge, Hudson River	3.10 ft	Below flood stage	−0.37 ft	87 mi
Hudson River at North CreekRiver gauge, Hudson River	3.97 ft	Below flood stage	−0.20 ft	67 mi
Hudson River at HadleyRiver gauge, Hudson River	3.41 ft	Below flood stage	−0.37 ft	40 mi
Hudson River at Fort EdwardRiver gauge, Hudson River	21.04 ft	Below flood stage	+0.11 ft	36 mi
Hudson River above Lock 1 near WaterfordRiver gauge, Hudson River	29.99 ft	Below flood stage	−0.40 ft	5.5 mi
Hudson River at Lock 1 near WaterfordRiver gauge, Hudson River	29.94 ft	No reference yet	−0.40 ft	5.2 mi

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Mohawk River at CohoesRiver gauge, Mohawk River	8.77 ft	Below flood stage	−0.60 ft	2.5 mi
Patroon Creek at AlbanyRiver gauge, Patroon Creek	12.7 cfs	Low	−1.1 cfs	7 mi
Mohawk River at Vischer Ferry DamRiver gauge, Mohawk River	12.07 ft	Normal	+0.05 ft	9 mi
Normans Kill at AlbanyRiver gauge, Normans Kill	53.6 cfs	Normal	−6.2 cfs	10 mi
Normans Kill at KarlsfeldRiver gauge, Normans Kill	8.43 ft	Normal	−0.04 ft	11 mi
Mohawk River at RexfordRiver gauge, Mohawk River	12.10 ft	Normal	+0.09 ft	12 mi
Mohawk River at Freeman's Bridge at SchenectadyRiver gauge, Mohawk River	1,740 cfs	Low	+320 cfs	13 mi
Valatie Kill near NassauRiver gauge, Valatie Kill	109 cfs	Very high	+27.4 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 5.68 ft below it.

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 20, 2026, 05:15 PM EDT, the water level was 15.82 ft. Down 0.80 ft over the last 24 hours.

Is Hudson River at Green Island rising or falling?

Down 0.80 ft over the last 24 hours.

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.

Is Hudson River at Green Island expected to rise?

The forecast expects the river to fall to 15.40 ft by Thursday, October 22 at 08:00 PM.

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	15.82 ft	2026-10-20 21:15	Provisional
Flow	3,830 cfs	2026-10-20 21:15	Provisional

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How to cite

U.S. Geological Survey: Hudson River at Green Island (usgs:01358000). Accessed October 20, 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