Rock River at Afton

Last updated: Jun 11, 2025, 8:26 PM UTC

Air Quality Alert

Warning: no valid ratings curve available. Transformations to and from FEET/CFS/KCFS will not happen.

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

Scale to Flood Categories

Auto Refresh

Traces and Thresholds Click to turn on/off display

Observed (OBS) 06/11/2025 2:00 PM CDT

CATEGORY STAGE

Major Flooding 12.2 ft

Moderate Flooding 11.1 ft

Minor Flooding 9 ft

Action 8 ft

Reliability of the Forecast: Based on current and forecast river, weather and reservoir conditions

NOTE: Forecasts are issued as needed during times of high water, but are not routinely available.

Gauge reading affected by power generation.
Auto Refresh

	CATEGORY	STAGE
	Major Flooding	12.2 ft
	Moderate Flooding	11.1 ft
	Minor Flooding	9 ft
	Action	8 ft

Flood Impacts 🅘

13 - There is widespread flooding in the Afton and Janesville areas. Numerous roads and streets are impacted including South River Road on the south side of Janesville, several blocks of Joseph and Charles Streets, and the on ramp to Memorial Drive. The intersection of Wall Street and Main Street is closed. Traxler Park in Janesville is flooded and closed.
12.7 - There is widespread flooding in the Afton and Janesville areas. Numerous roads and streets are closed including South River Road on the south side of Janesville, several blocks of Joseph and Charles Streets, a portion of Main Street, and North Loop Road at Traxler Park. The on-ramp to Memorial Drive is closed. Traxler Park in Janesville is flooded and closed. The intersection of Wall Street and Main Street is flooded.
12.2 - There is widespread flooding in the Afton and Janesville areas. Numerous roads and streets adjacent to the river are closed including South River Road on the south side of Janesville, several blocks of Joseph and Charles Streets, a portion of Main Street, and North Loop Road at Traxler Park. The on-ramp to Memorial Drive is closed as is a portion of Riverside Drive. Traxler Park off of Memorial Drive in Janesville is flooded and closed.

Gauge Info

Coordinates	42.6136, -89.0717
RFC	NCRFC
State	WI
WFO	MKX
County	Rock
Data Provider(s)
US Geological Survey	USGS--Water Resources of the United States
USGS	05430500

Gauge Location

Current Stage:

undefined undefined at undefined UTC

Highest Forecast: undefined undefined

Current Mouse Location

Latitude:

Longitude:

Not selected

Recent Crests

1.	10.81 ft	on 07-16-2024	(P)
2.	9.50 ft	on 06-13-2024	(P)
3.	9.10 ft	on 04-10-2024	(P)
4.	7.27 ft	on 04-13-2022
5.	7.43 ft	on 03-18-2021

Historic Crests

1.	13.51 ft	on 06-21-2008
2.	13.05 ft	on 02-05-1916
3.	12.21 ft	on 01-23-2008
4.	11.86 ft	on 04-05-1979
5.	11.84 ft	on 04-18-2013

Vertical Datum Table

type	NAVD88
major Flooding	754.34 ft
moderate Flooding	753.24 ft
minor Flooding	751.14 ft
action	750.14 ft
Latest Value	747.75 ft
Gauge Zero	742.14 ft

Gauge Photos

Photo 1 of 2

Aerial photo looking north-Rock River at Afton, WI

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

Recent Camera Image
How low could the river get?

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

Milwaukee/Sullivan

N3533 Hardscrabble Road

Dousman, WI 53118

(262) 965-2074

Ask Questions/Webmaster

Official Homepage

1.	10.81 ft	on 07-16-2024	(P)
2.	9.50 ft	on 06-13-2024	(P)
3.	9.10 ft	on 04-10-2024	(P)
4.	7.27 ft	on 04-13-2022
5.	7.43 ft	on 03-18-2021
6.	9.36 ft	on 03-29-2020
7.	10.48 ft	on 10-15-2019
8.	11.07 ft	on 03-25-2019
9.	9.86 ft	on 01-26-2019
10.	11.20 ft	on 09-12-2018
11.	9.79 ft	on 05-21-2018
12.	9.29 ft	on 03-01-2018
13.	11.12 ft	on 02-21-2018
14.	9.36 ft	on 07-21-2017
15.	8.94 ft	on 04-07-2017
16.	8.43 ft	on 04-13-2016
17.	11.84 ft	on 10-18-2015
18.	7.32 ft	on 04-18-2015
19.	8.95 ft	on 07-08-2014
20.	11.84 ft	on 04-18-2013
21.	7.03 ft	on 05-12-2012
22.	9.39 ft	on 03-29-2011
23.	10.54 ft	on 07-31-2010
24.	11.15 ft	on 03-25-2009
25.	13.51 ft	on 06-21-2008
26.	12.21 ft	on 01-23-2008
27.	10.01 ft	on 08-30-2007
28.	7.33 ft	on 04-16-2006
29.	7.67 ft	on 02-14-2005
30.	10.96 ft	on 06-01-2004
31.	6.52 ft	on 05-14-2003
32.	7.19 ft	on 03-18-2002
33.	7.97 ft	on 04-17-2001
34.	10.73 ft	on 06-02-2000
35.	9.17 ft	on 04-28-1999
36.	9.24 ft	on 04-21-1998
37.	8.63 ft	on 02-21-1997
38.	10.09 ft	on 06-24-1996
39.	6.60 ft	on 05-16-1995
40.	8.27 ft	on 03-21-1994
41.	11.41 ft	on 04-23-1993
42.	7.23 ft	on 11-12-1991
43.	7.92 ft	on 04-19-1991
44.	8.38 ft	on 03-22-1990
45.	6.86 ft	on 04-02-1989
46.	7.00 ft	on 04-06-1988
47.	10.74 ft	on 10-09-1986
48.	10.58 ft	on 03-27-1986
49.	9.58 ft	on 03-14-1985
50.	7.89 ft	on 02-27-1984
51.	8.56 ft	on 04-13-1983
52.	9.79 ft	on 04-11-1982
53.	8.26 ft	on 09-30-1980
54.	11.86 ft	on 04-05-1979
55.	8.69 ft	on 07-02-1978
56.	5.35 ft	on 04-08-1977
57.	8.93 ft	on 03-05-1976
58.	11.25 ft	on 04-01-1975
59.	9.88 ft	on 03-12-1974
60.	10.81 ft	on 05-08-1973
61.	7.76 ft	on 09-30-1972
62.	8.33 ft	on 03-29-1971
63.	5.85 ft	on 05-20-1970
64.	7.43 ft	on 04-18-1969
65.	7.67 ft	on 07-03-1968
66.	7.39 ft	on 06-17-1967
67.	7.46 ft	on 03-28-1966
68.	8.11 ft	on 09-26-1965
69.	5.09 ft	on 03-14-1964
70.	6.56 ft	on 04-01-1963
71.	10.13 ft	on 04-05-1962
72.	8.09 ft	on 03-29-1961
73.	10.00 ft	on 04-06-1960
74.	11.77 ft	on 04-10-1959
75.	4.76 ft	on 03-06-1958
76.	5.96 ft	on 06-14-1957
77.	6.80 ft	on 05-16-1956
78.	6.82 ft	on 10-11-1954
79.	6.93 ft	on 07-14-1954
80.	8.06 ft	on 02-20-1953
81.	10.39 ft	on 03-29-1952
82.	9.16 ft	on 05-04-1951
83.	8.24 ft	on 07-27-1950
84.	6.98 ft	on 10-16-1949
85.	7.79 ft	on 03-05-1949
86.	10.20 ft	on 03-19-1948
87.	10.46 ft	on 03-23-1946
88.	6.31 ft	on 03-21-1945
89.	9.19 ft	on 03-14-1944
90.	11.04 ft	on 03-16-1943
91.	5.94 ft	on 03-25-1942
92.	7.43 ft	on 04-04-1941
93.	10.80 ft	on 08-26-1940
94.	8.00 ft	on 02-25-1939
95.	10.44 ft	on 01-24-1938
96.	10.23 ft	on 03-04-1937
97.	7.07 ft	on 03-26-1936
98.	8.52 ft	on 03-10-1935
99.	5.36 ft	on 04-11-1934
100.	10.00 ft	on 05-20-1933
101.	6.80 ft	on 03-27-1932
102.	3.50 ft	on 03-28-1931
103.	7.00 ft	on 03-04-1930
104.	11.80 ft	on 03-23-1929
105.	8.40 ft	on 04-14-1928
106.	7.80 ft	on 03-20-1927
107.	7.40 ft	on 03-23-1926
108.	7.00 ft	on 02-23-1925
109.	8.70 ft	on 08-20-1924
110.	10.60 ft	on 04-12-1923
111.	9.70 ft	on 04-11-1922
112.	9.30 ft	on 05-02-1921
113.	10.30 ft	on 04-01-1920
114.	5.90 ft	on 04-15-1919
115.	11.50 ft	on 03-25-1918
116.	10.00 ft	on 04-01-1917
117.	10.12 ft	on 04-01-1916
118.	13.05 ft	on 02-05-1916
119.	11.00 ft	on 09-13-1915
120.	7.60 ft	on 09-15-1914

1.	13.51 ft	on 06-21-2008
2.	13.05 ft	on 02-05-1916
3.	12.21 ft	on 01-23-2008
4.	11.86 ft	on 04-05-1979
5.	11.84 ft	on 04-18-2013
6.	11.84 ft	on 10-18-2015
7.	11.80 ft	on 03-23-1929
8.	11.77 ft	on 04-10-1959
9.	11.50 ft	on 03-25-1918
10.	11.41 ft	on 04-23-1993
11.	11.25 ft	on 04-01-1975
12.	11.20 ft	on 09-12-2018
13.	11.15 ft	on 03-25-2009
14.	11.12 ft	on 02-21-2018
15.	11.07 ft	on 03-25-2019
16.	11.04 ft	on 03-16-1943
17.	11.00 ft	on 09-13-1915
18.	10.96 ft	on 06-01-2004
19.	10.81 ft	on 07-16-2024	(P)
20.	10.81 ft	on 05-08-1973
21.	10.80 ft	on 08-26-1940
22.	10.74 ft	on 10-09-1986
23.	10.73 ft	on 06-02-2000
24.	10.60 ft	on 04-12-1923
25.	10.58 ft	on 03-27-1986
26.	10.54 ft	on 07-31-2010
27.	10.48 ft	on 10-15-2019
28.	10.46 ft	on 03-23-1946
29.	10.44 ft	on 01-24-1938
30.	10.39 ft	on 03-29-1952
31.	10.30 ft	on 04-01-1920
32.	10.23 ft	on 03-04-1937
33.	10.20 ft	on 03-19-1948
34.	10.13 ft	on 04-05-1962
35.	10.12 ft	on 04-01-1916
36.	10.09 ft	on 06-24-1996
37.	10.01 ft	on 08-30-2007
38.	10.00 ft	on 04-06-1960
39.	10.00 ft	on 05-20-1933
40.	10.00 ft	on 04-01-1917
41.	9.88 ft	on 03-12-1974
42.	9.86 ft	on 01-26-2019
43.	9.79 ft	on 05-21-2018
44.	9.79 ft	on 04-11-1982
45.	9.70 ft	on 04-11-1922
46.	9.58 ft	on 03-14-1985
47.	9.50 ft	on 06-13-2024	(P)
48.	9.39 ft	on 03-29-2011
49.	9.36 ft	on 03-29-2020
50.	9.36 ft	on 07-21-2017
51.	9.30 ft	on 05-02-1921
52.	9.29 ft	on 03-01-2018
53.	9.24 ft	on 04-21-1998
54.	9.19 ft	on 03-14-1944
55.	9.17 ft	on 04-28-1999
56.	9.16 ft	on 05-04-1951
57.	9.10 ft	on 04-10-2024	(P)
58.	8.95 ft	on 07-08-2014
59.	8.94 ft	on 04-07-2017
60.	8.93 ft	on 03-05-1976
61.	8.70 ft	on 08-20-1924
62.	8.69 ft	on 07-02-1978
63.	8.63 ft	on 02-21-1997
64.	8.56 ft	on 04-13-1983
65.	8.52 ft	on 03-10-1935
66.	8.43 ft	on 04-13-2016
67.	8.40 ft	on 04-14-1928
68.	8.38 ft	on 03-22-1990
69.	8.33 ft	on 03-29-1971
70.	8.27 ft	on 03-21-1994
71.	8.26 ft	on 09-30-1980
72.	8.24 ft	on 07-27-1950
73.	8.11 ft	on 09-26-1965
74.	8.09 ft	on 03-29-1961
75.	8.06 ft	on 02-20-1953
76.	8.00 ft	on 02-25-1939
77.	7.97 ft	on 04-17-2001
78.	7.92 ft	on 04-19-1991
79.	7.89 ft	on 02-27-1984
80.	7.80 ft	on 03-20-1927
81.	7.79 ft	on 03-05-1949
82.	7.76 ft	on 09-30-1972
83.	7.67 ft	on 02-14-2005
84.	7.67 ft	on 07-03-1968
85.	7.60 ft	on 09-15-1914
86.	7.46 ft	on 03-28-1966
87.	7.43 ft	on 04-18-1969
88.	7.43 ft	on 03-18-2021
89.	7.43 ft	on 04-04-1941
90.	7.40 ft	on 03-23-1926
91.	7.39 ft	on 06-17-1967
92.	7.33 ft	on 04-16-2006
93.	7.32 ft	on 04-18-2015
94.	7.27 ft	on 04-13-2022
95.	7.23 ft	on 11-12-1991
96.	7.19 ft	on 03-18-2002
97.	7.07 ft	on 03-26-1936
98.	7.03 ft	on 05-12-2012
99.	7.00 ft	on 03-04-1930
100.	7.00 ft	on 04-06-1988
101.	7.00 ft	on 02-23-1925
102.	6.98 ft	on 10-16-1949
103.	6.93 ft	on 07-14-1954
104.	6.86 ft	on 04-02-1989
105.	6.82 ft	on 10-11-1954
106.	6.80 ft	on 03-27-1932
107.	6.80 ft	on 05-16-1956
108.	6.60 ft	on 05-16-1995
109.	6.56 ft	on 04-01-1963
110.	6.52 ft	on 05-14-2003
111.	6.31 ft	on 03-21-1945
112.	5.96 ft	on 06-14-1957
113.	5.94 ft	on 03-25-1942
114.	5.90 ft	on 04-15-1919
115.	5.85 ft	on 05-20-1970
116.	5.36 ft	on 04-11-1934
117.	5.35 ft	on 04-08-1977
118.	5.09 ft	on 03-14-1964
119.	4.76 ft	on 03-06-1958
120.	3.50 ft	on 03-28-1931