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East Branch Ausable River at Au Sable Forks water level

River gauge, East Branch Ausable River, New York, United States

Directions

Right now

Below flood stage

Water level

1.66ft Down 0.20 ft over the last 24 hours

Flow
185 cfs
0 10 20 Highest onrecord 18.51 ft Minor floodstage 7.00 ft

History

History
1.52.02.53.0ftOct 16Oct 18Oct 19Oct 21Oct 221.52.02.53.0ftOct 16Oct 19Oct 22
Water level Forecast Minor flood stage

The forecast expects the river to fall to 1.40 ft by Wednesday, October 21 at 02:00 PM. Issued Monday, October 19 at 10:40 AM by NOAA National Weather Service.

What this means

Water levels are unremarkable at East Branch Ausable River at Au Sable Forks, where the gauge shows 1.66 ft.

It is 5.34 ft below the flood stage of 7.00 ft.

It is still going down, by 0.20 ft over the past 24 hours. The forecast expects the river to fall to 1.40 ft by Wednesday, October 21 at 02:00 PM. The 30-day range is 1.66 ft – 2.97 ft.

Judged against the official flood stage for this gauge. How to read levels

Key numbers

Highest on record
18.51 ftAugust 29, 2011
Forecast peak
1.60 ftTuesday, October 20 at 02:00 AM

Paddling and fishing conditions

Most paddlers and anglers will find the river in good shape at this stage.

For reference, flood stage is 7.00 ft.

What happens at each level

18.00 ft
Record flooding will occur throughout the Ausable valley with numerous homes and businesses flooded or becoming isolated by high water. Large sections of Routes 9N and 73 will flood and become impassable. Ausable Village may become isolated with large areas of the town flooded, such as Main Street, the Main Street bridge and the Jersey bridge. Safe access to many homes and businesses will be blocked by high water.
15.00 ft
Severe flooding will be seen throughout much of the Ausable Valley from Keene to Jay, downstream through Ausable Village and Keeseville. Numerous sections of Routes 9n and 73 will flood with some homes and businesses becoming isolated by high water, similar to the flood of November 1996. In Ausable Village, Grove Road, School Street, Intervale Avenue, and homes in the Jersey area will flood. In Keeseville, the wastewater treatment plant and several homes and businesses along Route 9 will flood.
13.00 ft
Major flooding will occur in many portions of the Ausable Valley. In Ausable Village, homes in the Jersey area and other lowland areas will likely flood. Several feet of water will cover Intervale Avenue, and portions of Grove Road and School Street may experience high water. Sections of Routes 9N and 73 will flood. In Keeseville, the wastewater treatment plant, as well as homes and businesses along Route 9 will likely flood. This stage is equivalent to the FEMA 1 Percent Annual Chance Flood.
11.00 ft
Major flooding will likely occur in portions of the Ausable River valley. In Ausable Village, homes in the Jersey area including Intervale Avenue will flood. Water will cover Route 9N near Stickney Bridge including Clark Lane and Carey Road. Water will approach Route 9N near Stone House Road. In Keeseville, the wastewater treatment plant and businesses along Route 9 may flood. In Keene, water will cover Hulls Falls Road, Routes 73 and 9N near Marcy field. The Keene business district may also flood.
10.00 ft
Parkland and adjacent parking lots will flood in Ausable Forks. In Jay, portions of Route 9N near Stickney Bridge will flood. Water will back up onto Clark Lane and Carey Road. Downstream in Keeseville, water will approach businesses along north Ausable Street, as well as the Keeseville wastewater treatment plant. Upstream in Keene, water will cover Hulls Falls Road and Routes 73 and 9N near Marcy Field.
9.00 ft
In Jay, water will approach Route 9N in the Stickney Bridge area. In Keene, water will cover Hulls Falls Road, and Routes 73 and 9N near Marcy Field.
8.00 ft
In Jay, water will cover Route 9N near Trumbulls Corner. Minor flooding can occur in Keene. Water begins to overflow onto Hulls Falls Road, Route 73, and Route 9N near Marcy Field. High water will impact interests at Alice Falls near Keeseville.
7.00 ft
Minor flooding can occur in Keene. Water begins to overflow onto Hulls Falls Road, Route 73, and Route 9N near Marcy Field. High water will impact interests at Alice Falls near Keeseville.
1.66 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: 29 %.

RankLevelDate
118.51 ftAugust 29, 2011
215.82 ftFebruary 18, 2022
315.22 ftNovember 9, 1996
413.96 ftFebruary 23, 1990
513.27 ftJanuary 12, 2018
612.91 ftSeptember 22, 1938
711.93 ftJanuary 19, 1996
811.83 ftDecember 18, 2023
911.70 ftFebruary 11, 1981
1011.63 ftFebruary 3, 1983

Weather at the gauge

The forecast is not available right now.

Sunrise 07:17 AM Sunset 06:04 PM Daylight 10 hr, 47 min First quarter 67%

Map

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Ausable River near Au Sable ForksRiver gauge, Ausable River 461 cfs Normal −108.0 cfs 2.1 mi
Little Ausable River near ValcourRiver gauge, Little Ausable River 22.3 cfs Normal −3.2 cfs 14 mi
Boquet River at WillsboroRiver gauge, Boquet River 2.55 ft Below flood stage −0.09 ft 15 mi
Salmon River at South PlattsburghRiver gauge, Salmon River 25.5 cfs Normal −3.2 cfs 17 mi
Saranac River at PlattsburghRiver gauge, Saranac River 4.28 ft Below flood stage −0.17 ft 20 mi
Lake Champlain at BurlingtonLake, Lake Champlain 93.59 ft Low +0.06 ft 23 mi
Laplatte River at Shelburne FallsRiver gauge, Laplatte River 6.4 cfs Low −1.3 cfs 23 mi
Lewis Creek at North FerrisburgRiver gauge, Lewis Creek 28.2 cfs Low −5.8 cfs 26 mi

Questions and answers

What is flood stage for the East Branch Ausable River at Au Sable Forks?

The official flood stage is 7.00 ft. The level is currently 5.34 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 East Branch Ausable River at Au Sable Forks today?

On Oct 20, 2026, 06:15 AM EDT, the water level was 1.66 ft. Down 0.20 ft over the last 24 hours.

Is East Branch Ausable River at Au Sable Forks rising or falling?

Down 0.20 ft over the last 24 hours.

Is the level of East Branch Ausable River at Au Sable Forks normal?

Below flood stage. Judged against the official flood stage for this gauge.

What is the highest water level ever recorded at East Branch Ausable River at Au Sable Forks?

The highest level on record is 18.51 ft on August 29, 2011.

Is East Branch Ausable River at Au Sable Forks expected to rise?

The forecast expects the river to fall to 1.40 ft by Wednesday, October 21 at 02:00 PM.

For specialists

Station codes, datum, parameters, data quality and downloads
Operator
U.S. Geological Survey
Station code
usgs:04275000 (Agency page)
Coordinates
44.43822, -73.68100 (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

ParameterLast valueTime (UTC)Quality
Water level 1.66 ft 2026-10-20 10:15 Provisional
Flow 185 cfs 2026-10-20 10:15 Provisional

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How to cite

U.S. Geological Survey: East Branch Ausable River at Au Sable Forks (usgs:04275000). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-states/new-york/east-branch-ausable-river-at-au-sable-forks

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.