East Branch of the Ausable River at Au Sable Forks

Last updated: Apr 4, 2025, 5:22 PM UTC

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US Geological Survey
Observations courtesy of U.S. Geological Survey

Scale to Flood Categories

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Observed (OBS) 04/04/2025 12:25 PM EDT

Official Forecast (FCST) 04/04/2025 11:52 AM EDT

Record: 18.5 ft

CATEGORY STAGE

Major Flooding 11 ft

Moderate Flooding 9 ft

Minor Flooding 7 ft

Action 6 ft

Reliability of the Forecast:

NOTE: Forecasts are issued routinely year-round.

Gauge reading may be affected by ice. Forecast flows are unadjusted for ice.
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	CATEGORY	STAGE
	Major Flooding	11 ft
	Moderate Flooding	9 ft
	Minor Flooding	7 ft
	Action	6 ft

Flood Impacts 🅘

18 - 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 - 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 - 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.

Gauge Info

Coordinates	44.4375, -73.6811
RFC	NERFC
State	NY
WFO	BTV
County	Essex
Data Provider(s)
US Geological Survey	USGS--Water Resources of the United States
USGS	04275000

Gauge Location

Recent Crests

1.	7.58 ft	on 03-17-2025	(P)
2.	8.50 ft	on 07-11-2024	(P)
3.	7.71 ft	on 04-13-2024	(P)
4.	11.83 ft	on 12-18-2023
5.	8.85 ft	on 10-08-2023

Historic Crests

1.	18.51 ft	on 08-29-2011
2.	15.82 ft	on 02-18-2022
3.	15.22 ft	on 11-09-1996
4.	13.96 ft	on 02-23-1990
5.	13.27 ft	on 01-12-2018

Vertical Datum Table

type	NAVD88
major Flooding	555.90 ft
moderate Flooding	553.90 ft
minor Flooding	551.90 ft
action	550.90 ft
Latest Value	549.15 ft
Gauge Zero	544.90 ft

Gauge Photos

Photo 1 of 1

Looking downstream toward Ausable village

Probability Information

Photo 1 of 3

Weekly Chance of Exceeding Levels
- About this graph
Chance of Exceeding Levels During Entire Period
- About this graph
Short Range Forecast Uncertainty
About this graph | Product Description Document

Unique Local Info

Potential River Levels - Used to

Potential River Levels Used to Estimate the Chance of Flooding and the Range of Possible River Levels
10 Day (HEFS)	10 Day (NAEFS)	10 Day (GEFS)

Note: Use the official hydrograph at the top of this web page for river levels within the next 72 hours.

Click individual graphics to enlarge.

Collaborative Agencies

The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.

Resources

Hydrologic Resource Links

Additional Resource Links

WFO Information

Weather Forecast Office

Burlington

1200 Airport Drive

South Burlington, VT 05403

(802) 862-2475

Ask Questions/Webmaster

Official Homepage

1.	7.58 ft	on 03-17-2025	(P)
2.	8.50 ft	on 07-11-2024	(P)
3.	7.71 ft	on 04-13-2024	(P)
4.	11.83 ft	on 12-18-2023
5.	8.85 ft	on 10-08-2023
6.	8.36 ft	on 05-01-2023
7.	7.03 ft	on 04-08-2022
8.	15.82 ft	on 02-18-2022
9.	8.73 ft	on 12-25-2020
10.	7.61 ft	on 08-05-2020
11.	7.63 ft	on 04-14-2020
12.	7.82 ft	on 01-12-2020
13.	11.27 ft	on 11-01-2019
14.	8.27 ft	on 04-20-2019
15.	7.45 ft	on 12-22-2018
16.	7.80 ft	on 04-26-2018
17.	13.27 ft	on 01-12-2018
18.	8.90 ft	on 05-17-2014
19.	9.37 ft	on 04-16-2014
20.	9.61 ft	on 12-22-2013
21.	9.65 ft	on 06-28-2013
22.	18.51 ft	on 08-29-2011
23.	11.48 ft	on 04-28-2011
24.	10.20 ft	on 04-27-2011
25.	8.40 ft	on 04-12-2011
26.	7.21 ft	on 10-01-2010
27.	7.30 ft	on 03-23-2010
28.	7.90 ft	on 06-17-2005
29.	9.54 ft	on 04-24-2005
30.	7.47 ft	on 04-03-2005
31.	7.06 ft	on 01-14-2005
32.	7.70 ft	on 12-25-2003
33.	5.47 ft	on 03-29-2003
34.	7.59 ft	on 04-14-2002
35.	7.86 ft	on 04-22-2001
36.	7.34 ft	on 03-28-2000
37.	6.64 ft	on 09-17-1999
38.	9.71 ft	on 01-24-1999
39.	8.52 ft	on 01-08-1998
40.	7.01 ft	on 12-09-1996
41.	15.22 ft	on 11-09-1996
42.	11.93 ft	on 01-19-1996
43.	5.31 ft	on 01-16-1995
44.	6.27 ft	on 01-15-1995
45.	7.01 ft	on 04-16-1994
46.	7.94 ft	on 04-17-1993
47.	7.11 ft	on 03-27-1992
48.	10.50 ft	on 03-11-1992
49.	6.88 ft	on 10-24-1990
50.	13.96 ft	on 02-23-1990
51.	7.51 ft	on 10-21-1989
52.	8.22 ft	on 09-20-1989
53.	7.17 ft	on 03-29-1989
54.	8.71 ft	on 11-06-1988
55.	7.48 ft	on 04-29-1988
56.	6.23 ft	on 04-07-1987
57.	9.57 ft	on 03-31-1987
58.	6.56 ft	on 03-19-1986
59.	8.21 ft	on 03-15-1986
60.	7.16 ft	on 09-27-1985
61.	5.89 ft	on 05-18-1985
62.	8.15 ft	on 12-29-1984
63.	6.53 ft	on 04-16-1984
64.	7.22 ft	on 12-14-1983
65.	9.12 ft	on 05-01-1983
66.	11.63 ft	on 02-03-1983
67.	8.34 ft	on 04-18-1982
68.	7.24 ft	on 10-28-1981
69.	6.48 ft	on 09-23-1981
70.	7.98 ft	on 02-21-1981
71.	11.70 ft	on 02-11-1981
72.	7.09 ft	on 04-10-1980
73.	7.63 ft	on 03-21-1980
74.	11.13 ft	on 11-27-1979
75.	7.76 ft	on 09-06-1979
76.	9.35 ft	on 04-28-1979
77.	7.31 ft	on 03-25-1979
78.	7.65 ft	on 03-06-1979
79.	8.84 ft	on 01-09-1978
80.	8.76 ft	on 10-17-1977
81.	7.41 ft	on 04-24-1977
82.	7.85 ft	on 03-13-1977
83.	7.17 ft	on 04-01-1976
84.	7.01 ft	on 05-22-1973
85.	7.14 ft	on 06-24-1972
86.	7.49 ft	on 05-03-1972
87.	7.92 ft	on 11-08-1969
88.	7.79 ft	on 04-25-1968
89.	7.11 ft	on 03-23-1968
90.	7.04 ft	on 04-03-1967
91.	8.22 ft	on 03-05-1964
92.	7.06 ft	on 04-04-1963
93.	7.58 ft	on 02-11-1960
94.	8.03 ft	on 10-24-1959
95.	8.22 ft	on 04-22-1958
96.	9.60 ft	on 12-21-1957
97.	7.12 ft	on 04-30-1956
98.	7.48 ft	on 04-05-1956
99.	7.92 ft	on 04-17-1954
100.	8.05 ft	on 03-27-1953
101.	7.58 ft	on 03-24-1953
102.	7.62 ft	on 12-11-1952
103.	7.28 ft	on 04-06-1952
104.	8.19 ft	on 03-31-1951
105.	7.09 ft	on 11-26-1950
106.	7.03 ft	on 04-20-1950
107.	11.60 ft	on 12-31-1948
108.	7.05 ft	on 07-08-1947
109.	8.11 ft	on 06-03-1947
110.	7.79 ft	on 05-22-1947
111.	7.51 ft	on 04-12-1947
112.	7.63 ft	on 07-15-1945
113.	7.81 ft	on 05-18-1945
114.	8.75 ft	on 06-24-1944
115.	8.07 ft	on 09-27-1942
116.	9.24 ft	on 03-27-1939
117.	12.91 ft	on 09-22-1938
118.	9.60 ft	on 03-18-1936
119.	11.40 ft	on 03-28-1925
120.	10.85 ft	on 10-01-1924

1.	18.51 ft	on 08-29-2011
2.	15.82 ft	on 02-18-2022
3.	15.22 ft	on 11-09-1996
4.	13.96 ft	on 02-23-1990
5.	13.27 ft	on 01-12-2018
6.	12.91 ft	on 09-22-1938
7.	11.93 ft	on 01-19-1996
8.	11.83 ft	on 12-18-2023
9.	11.70 ft	on 02-11-1981
10.	11.63 ft	on 02-03-1983
11.	11.60 ft	on 12-31-1948
12.	11.48 ft	on 04-28-2011
13.	11.40 ft	on 03-28-1925
14.	11.27 ft	on 11-01-2019
15.	11.13 ft	on 11-27-1979
16.	10.85 ft	on 10-01-1924
17.	10.50 ft	on 03-11-1992
18.	10.20 ft	on 04-27-2011
19.	9.71 ft	on 01-24-1999
20.	9.65 ft	on 06-28-2013
21.	9.61 ft	on 12-22-2013
22.	9.60 ft	on 12-21-1957
23.	9.60 ft	on 03-18-1936
24.	9.57 ft	on 03-31-1987
25.	9.54 ft	on 04-24-2005
26.	9.37 ft	on 04-16-2014
27.	9.35 ft	on 04-28-1979
28.	9.24 ft	on 03-27-1939
29.	9.12 ft	on 05-01-1983
30.	8.90 ft	on 05-17-2014
31.	8.85 ft	on 10-08-2023
32.	8.84 ft	on 01-09-1978
33.	8.76 ft	on 10-17-1977
34.	8.75 ft	on 06-24-1944
35.	8.73 ft	on 12-25-2020
36.	8.71 ft	on 11-06-1988
37.	8.52 ft	on 01-08-1998
38.	8.50 ft	on 07-11-2024	(P)
39.	8.40 ft	on 04-12-2011
40.	8.36 ft	on 05-01-2023
41.	8.34 ft	on 04-18-1982
42.	8.27 ft	on 04-20-2019
43.	8.22 ft	on 09-20-1989
44.	8.22 ft	on 03-05-1964
45.	8.22 ft	on 04-22-1958
46.	8.21 ft	on 03-15-1986
47.	8.19 ft	on 03-31-1951
48.	8.15 ft	on 12-29-1984
49.	8.11 ft	on 06-03-1947
50.	8.07 ft	on 09-27-1942
51.	8.05 ft	on 03-27-1953
52.	8.03 ft	on 10-24-1959
53.	7.98 ft	on 02-21-1981
54.	7.94 ft	on 04-17-1993
55.	7.92 ft	on 04-17-1954
56.	7.92 ft	on 11-08-1969
57.	7.90 ft	on 06-17-2005
58.	7.86 ft	on 04-22-2001
59.	7.85 ft	on 03-13-1977
60.	7.82 ft	on 01-12-2020
61.	7.81 ft	on 05-18-1945
62.	7.80 ft	on 04-26-2018
63.	7.79 ft	on 04-25-1968
64.	7.79 ft	on 05-22-1947
65.	7.76 ft	on 09-06-1979
66.	7.71 ft	on 04-13-2024	(P)
67.	7.70 ft	on 12-25-2003
68.	7.65 ft	on 03-06-1979
69.	7.63 ft	on 04-14-2020
70.	7.63 ft	on 07-15-1945
71.	7.63 ft	on 03-21-1980
72.	7.62 ft	on 12-11-1952
73.	7.61 ft	on 08-05-2020
74.	7.59 ft	on 04-14-2002
75.	7.58 ft	on 03-17-2025	(P)
76.	7.58 ft	on 03-24-1953
77.	7.58 ft	on 02-11-1960
78.	7.51 ft	on 04-12-1947
79.	7.51 ft	on 10-21-1989
80.	7.49 ft	on 05-03-1972
81.	7.48 ft	on 04-29-1988
82.	7.48 ft	on 04-05-1956
83.	7.47 ft	on 04-03-2005
84.	7.45 ft	on 12-22-2018
85.	7.41 ft	on 04-24-1977
86.	7.34 ft	on 03-28-2000
87.	7.31 ft	on 03-25-1979
88.	7.30 ft	on 03-23-2010
89.	7.28 ft	on 04-06-1952
90.	7.24 ft	on 10-28-1981
91.	7.22 ft	on 12-14-1983
92.	7.21 ft	on 10-01-2010
93.	7.17 ft	on 04-01-1976
94.	7.17 ft	on 03-29-1989
95.	7.16 ft	on 09-27-1985
96.	7.14 ft	on 06-24-1972
97.	7.12 ft	on 04-30-1956
98.	7.11 ft	on 03-23-1968
99.	7.11 ft	on 03-27-1992
100.	7.09 ft	on 04-10-1980
101.	7.09 ft	on 11-26-1950
102.	7.06 ft	on 04-04-1963
103.	7.06 ft	on 01-14-2005
104.	7.05 ft	on 07-08-1947
105.	7.04 ft	on 04-03-1967
106.	7.03 ft	on 04-08-2022
107.	7.03 ft	on 04-20-1950
108.	7.01 ft	on 05-22-1973
109.	7.01 ft	on 12-09-1996
110.	7.01 ft	on 04-16-1994
111.	6.88 ft	on 10-24-1990
112.	6.64 ft	on 09-17-1999
113.	6.56 ft	on 03-19-1986
114.	6.53 ft	on 04-16-1984
115.	6.48 ft	on 09-23-1981
116.	6.27 ft	on 01-15-1995
117.	6.23 ft	on 04-07-1987
118.	5.89 ft	on 05-18-1985
119.	5.47 ft	on 03-29-2003
120.	5.31 ft	on 01-16-1995