Cedar River at Janesville
No watches, warnings or advisories are in effect for this area.
Future / Actual / Minor
OWP 2.0 WWA Modal Title
01/11/2021, 10:04 PM UTC through 01/11/2021, 10:04 PM UTC
Sender
Sent
- Warning: no valid ratings curve available. Transformations to and from FEET/CFS/KCFS will not happen.
Traces and Thresholds Click to turn on/off display
Observed (OBS) 06/14/2025 1:45 PM CDTRecord: 19.4 ftCATEGORY STAGE 
Major Flooding 18 ft Moderate Flooding 15 ft Minor Flooding 13 ft Action 10 ft Reliability of the Forecast:
NOTE: Forecasts are issued as needed during times of high water, but are not routinely available.
National Water Model Hydrograph
Official NWS streamflow forecasts are produced by NWS hydrologic forecasters for river gauge locations using hydrologic models which are calibrated to that location. This process considers additional guidance and information, including local expertise and experience, to produce the best forecast possible. The NWM output provides supplemental guidance to NWS forecasters and should not be considered an official NWS river forecast.
Flood Impacts
- 14 - Water threatens areas of Janesville south of 8th St.
- 13 - Water affects W 3rd St and may result in evacuation of a trailer court in Janesville. Water also affects much of the Janesville city park as well as nearby gravel roads.
- 12 - Widespread lowland flooding occurs especially within the city park. The flooding covers approximately 6000 acres.
- 11 - Lowland flooding of the city park occurs.
Gauge Location
Recent Crests
| 1. | 14.36 ft | on 06-25-2024 |
| 2. | 8.57 ft | on 05-17-2023 |
| 3. | 6.11 ft | on 04-15-2022 |
| 4. | 15.11 ft | on 08-30-2021 |
| 5. | 8.89 ft | on 03-11-2020 |
Recent Crests
| 1. | 14.36 ft | on 06-25-2024 |
| 2. | 8.57 ft | on 05-17-2023 |
| 3. | 6.11 ft | on 04-15-2022 |
| 4. | 15.11 ft | on 08-30-2021 |
| 5. | 8.89 ft | on 03-11-2020 |
| 6. | 12.40 ft | on 03-18-2019 |
| 7. | 12.14 ft | on 09-23-2018 |
| 8. | 9.24 ft | on 10-29-2016 |
| 9. | 16.27 ft | on 09-24-2016 |
| 10. | 9.89 ft | on 06-25-2015 |
| 11. | 12.42 ft | on 06-21-2014 |
| 12. | 14.62 ft | on 05-22-2013 |
| 13. | 4.70 ft | on 05-08-2012 |
| 14. | 11.34 ft | on 03-25-2011 |
| 15. | 11.76 ft | on 03-14-2010 |
| 16. | 5.79 ft | on 02-14-2009 |
| 17. | 19.45 ft | on 06-10-2008 |
| 18. | 8.75 ft | on 03-24-2007 |
| 19. | 8.27 ft | on 04-10-2006 |
| 20. | 8.37 ft | on 02-17-2005 |
| 21. | 13.40 ft | on 09-18-2004 |
| 22. | 6.41 ft | on 05-15-2003 |
| 23. | 3.48 ft | on 06-07-2002 |
| 24. | 13.30 ft | on 04-14-2001 |
| 25. | 11.91 ft | on 07-13-2000 |
| 26. | 17.15 ft | on 07-22-1999 |
| 27. | 8.83 ft | on 07-01-1998 |
| 28. | 9.52 ft | on 03-25-1997 |
| 29. | 9.99 ft | on 03-14-1997 |
| 30. | 4.88 ft | on 06-21-1996 |
| 31. | 5.16 ft | on 04-15-1995 |
| 32. | 6.29 ft | on 07-23-1994 |
| 33. | 15.74 ft | on 08-18-1993 |
| 34. | 8.31 ft | on 03-11-1992 |
| 35. | 10.98 ft | on 05-20-1991 |
| 36. | 10.30 ft | on 07-30-1990 |
| 37. | 4.71 ft | on 03-27-1989 |
| 38. | 7.89 ft | on 03-14-1989 |
| 39. | 4.15 ft | on 03-06-1988 |
| 40. | 10.18 ft | on 10-15-1986 |
| 41. | 11.03 ft | on 03-21-1986 |
| 42. | 7.20 ft | on 02-24-1985 |
| 43. | 9.96 ft | on 06-20-1984 |
| 44. | 10.28 ft | on 03-08-1983 |
| 45. | 8.69 ft | on 03-21-1982 |
| 46. | 7.13 ft | on 07-19-1981 |
| 47. | 11.14 ft | on 08-12-1980 |
| 48. | 11.24 ft | on 04-02-1979 |
| 49. | 8.90 ft | on 07-10-1978 |
| 50. | 3.30 ft | on 09-18-1977 |
| 51. | 8.58 ft | on 03-14-1976 |
| 52. | 9.90 ft | on 04-30-1975 |
| 53. | 9.33 ft | on 06-11-1974 |
| 54. | 11.67 ft | on 04-18-1973 |
| 55. | 5.42 ft | on 09-27-1972 |
| 56. | 9.59 ft | on 04-02-1971 |
| 57. | 4.85 ft | on 03-04-1970 |
| 58. | 13.74 ft | on 07-01-1969 |
| 59. | 12.79 ft | on 07-17-1968 |
| 60. | 7.57 ft | on 06-12-1967 |
| 61. | 12.05 ft | on 10-01-1965 |
| 62. | 14.33 ft | on 04-07-1965 |
| 63. | 16.33 ft | on 03-03-1965 |
| 64. | 2.53 ft | on 06-23-1964 |
| 65. | 9.65 ft | on 03-19-1963 |
| 66. | 13.86 ft | on 03-31-1962 |
| 67. | 16.33 ft | on 03-28-1961 |
| 68. | 10.46 ft | on 03-30-1960 |
| 69. | 6.78 ft | on 03-27-1959 |
| 70. | 2.73 ft | on 02-25-1958 |
| 71. | 3.10 ft | on 05-31-1957 |
| 72. | 4.46 ft | on 04-05-1956 |
| 73. | 5.16 ft | on 03-14-1955 |
| 74. | 12.08 ft | on 06-22-1954 |
| 75. | 10.80 ft | on 08-06-1953 |
| 76. | 10.74 ft | on 04-02-1952 |
| 77. | 14.05 ft | on 04-09-1951 |
| 78. | 12.70 ft | on 03-28-1950 |
| 79. | 11.40 ft | on 03-07-1949 |
| 80. | 14.10 ft | on 03-01-1948 |
| 81. | 10.14 ft | on 06-13-1947 |
| 82. | 11.30 ft | on 09-09-1946 |
| 83. | 16.20 ft | on 03-17-1945 |
| 84. | 9.30 ft | on 07-16-1942 |
| 85. | 8.70 ft | on 04-20-1941 |
| 86. | 6.00 ft | on 04-01-1940 |
| 87. | 9.40 ft | on 03-17-1939 |
| 88. | 8.80 ft | on 09-17-1938 |
| 89. | 11.00 ft | on 03-08-1937 |
| 90. | 9.80 ft | on 03-24-1936 |
| 91. | 9.10 ft | on 03-05-1935 |
| 92. | 9.90 ft | on 04-06-1934 |
| 93. | 16.00 ft | on 04-01-1933 |
| 94. | 16.00 ft | on 03-16-1929 |
| 95. | 6.20 ft | on 05-28-1927 |
| 96. | 5.60 ft | on 03-22-1926 |
| 97. | 7.70 ft | on 06-15-1925 |
| 98. | 6.00 ft | on 08-22-1924 |
| 99. | 6.20 ft | on 04-04-1923 |
| 100. | 11.50 ft | on 05-29-1921 |
| 101. | 7.30 ft | on 03-28-1920 |
| 102. | 4.70 ft | on 04-10-1919 |
| 103. | 5.00 ft | on 03-20-1918 |
| 104. | 9.80 ft | on 03-24-1917 |
| 105. | 7.00 ft | on 06-02-1916 |
| 106. | 4.90 ft | on 05-31-1915 |
| 107. | 10.20 ft | on 03-27-1906 |
| 108. | 3.10 ft | on 05-17-1905 |
Historic Crests
| 1. | 19.45 ft | on 06-10-2008 |
| 2. | 17.15 ft | on 07-22-1999 |
| 3. | 16.33 ft | on 03-03-1965 |
| 4. | 16.33 ft | on 03-28-1961 |
| 5. | 16.27 ft | on 09-24-2016 |
Historic Crests
| 1. | 19.45 ft | on 06-10-2008 |
| 2. | 17.15 ft | on 07-22-1999 |
| 3. | 16.33 ft | on 03-03-1965 |
| 4. | 16.33 ft | on 03-28-1961 |
| 5. | 16.27 ft | on 09-24-2016 |
| 6. | 16.20 ft | on 03-17-1945 |
| 7. | 16.00 ft | on 04-01-1933 |
| 8. | 16.00 ft | on 03-16-1929 |
| 9. | 15.74 ft | on 08-18-1993 |
| 10. | 15.11 ft | on 08-30-2021 |
| 11. | 14.62 ft | on 05-22-2013 |
| 12. | 14.36 ft | on 06-25-2024 |
| 13. | 14.33 ft | on 04-07-1965 |
| 14. | 14.10 ft | on 03-01-1948 |
| 15. | 14.05 ft | on 04-09-1951 |
| 16. | 13.86 ft | on 03-31-1962 |
| 17. | 13.74 ft | on 07-01-1969 |
| 18. | 13.40 ft | on 09-18-2004 |
| 19. | 13.30 ft | on 04-14-2001 |
| 20. | 12.79 ft | on 07-17-1968 |
| 21. | 12.70 ft | on 03-28-1950 |
| 22. | 12.42 ft | on 06-21-2014 |
| 23. | 12.40 ft | on 03-18-2019 |
| 24. | 12.14 ft | on 09-23-2018 |
| 25. | 12.08 ft | on 06-22-1954 |
| 26. | 12.05 ft | on 10-01-1965 |
| 27. | 11.91 ft | on 07-13-2000 |
| 28. | 11.76 ft | on 03-14-2010 |
| 29. | 11.67 ft | on 04-18-1973 |
| 30. | 11.50 ft | on 05-29-1921 |
| 31. | 11.40 ft | on 03-07-1949 |
| 32. | 11.34 ft | on 03-25-2011 |
| 33. | 11.30 ft | on 09-09-1946 |
| 34. | 11.24 ft | on 04-02-1979 |
| 35. | 11.14 ft | on 08-12-1980 |
| 36. | 11.03 ft | on 03-21-1986 |
| 37. | 11.00 ft | on 03-08-1937 |
| 38. | 10.98 ft | on 05-20-1991 |
| 39. | 10.80 ft | on 08-06-1953 |
| 40. | 10.74 ft | on 04-02-1952 |
| 41. | 10.46 ft | on 03-30-1960 |
| 42. | 10.30 ft | on 07-30-1990 |
| 43. | 10.28 ft | on 03-08-1983 |
| 44. | 10.20 ft | on 03-27-1906 |
| 45. | 10.18 ft | on 10-15-1986 |
| 46. | 10.14 ft | on 06-13-1947 |
| 47. | 9.99 ft | on 03-14-1997 |
| 48. | 9.96 ft | on 06-20-1984 |
| 49. | 9.90 ft | on 04-30-1975 |
| 50. | 9.90 ft | on 04-06-1934 |
| 51. | 9.89 ft | on 06-25-2015 |
| 52. | 9.80 ft | on 03-24-1936 |
| 53. | 9.80 ft | on 03-24-1917 |
| 54. | 9.65 ft | on 03-19-1963 |
| 55. | 9.59 ft | on 04-02-1971 |
| 56. | 9.52 ft | on 03-25-1997 |
| 57. | 9.40 ft | on 03-17-1939 |
| 58. | 9.33 ft | on 06-11-1974 |
| 59. | 9.30 ft | on 07-16-1942 |
| 60. | 9.24 ft | on 10-29-2016 |
| 61. | 9.10 ft | on 03-05-1935 |
| 62. | 8.90 ft | on 07-10-1978 |
| 63. | 8.89 ft | on 03-11-2020 |
| 64. | 8.83 ft | on 07-01-1998 |
| 65. | 8.80 ft | on 09-17-1938 |
| 66. | 8.75 ft | on 03-24-2007 |
| 67. | 8.70 ft | on 04-20-1941 |
| 68. | 8.69 ft | on 03-21-1982 |
| 69. | 8.58 ft | on 03-14-1976 |
| 70. | 8.57 ft | on 05-17-2023 |
| 71. | 8.37 ft | on 02-17-2005 |
| 72. | 8.31 ft | on 03-11-1992 |
| 73. | 8.27 ft | on 04-10-2006 |
| 74. | 7.89 ft | on 03-14-1989 |
| 75. | 7.70 ft | on 06-15-1925 |
| 76. | 7.57 ft | on 06-12-1967 |
| 77. | 7.30 ft | on 03-28-1920 |
| 78. | 7.20 ft | on 02-24-1985 |
| 79. | 7.13 ft | on 07-19-1981 |
| 80. | 7.00 ft | on 06-02-1916 |
| 81. | 6.78 ft | on 03-27-1959 |
| 82. | 6.41 ft | on 05-15-2003 |
| 83. | 6.29 ft | on 07-23-1994 |
| 84. | 6.20 ft | on 05-28-1927 |
| 85. | 6.20 ft | on 04-04-1923 |
| 86. | 6.11 ft | on 04-15-2022 |
| 87. | 6.00 ft | on 04-01-1940 |
| 88. | 6.00 ft | on 08-22-1924 |
| 89. | 5.79 ft | on 02-14-2009 |
| 90. | 5.60 ft | on 03-22-1926 |
| 91. | 5.42 ft | on 09-27-1972 |
| 92. | 5.16 ft | on 04-15-1995 |
| 93. | 5.16 ft | on 03-14-1955 |
| 94. | 5.00 ft | on 03-20-1918 |
| 95. | 4.90 ft | on 05-31-1915 |
| 96. | 4.88 ft | on 06-21-1996 |
| 97. | 4.85 ft | on 03-04-1970 |
| 98. | 4.71 ft | on 03-27-1989 |
| 99. | 4.70 ft | on 04-10-1919 |
| 100. | 4.70 ft | on 05-08-2012 |
| 101. | 4.46 ft | on 04-05-1956 |
| 102. | 4.15 ft | on 03-06-1988 |
| 103. | 3.48 ft | on 06-07-2002 |
| 104. | 3.30 ft | on 09-18-1977 |
| 105. | 3.10 ft | on 05-17-1905 |
| 106. | 3.10 ft | on 05-31-1957 |
| 107. | 2.73 ft | on 02-25-1958 |
| 108. | 2.53 ft | on 06-23-1964 |
Low Water Records
Low Water Records
Vertical Datum Table
| type | NAVD88 |
|---|---|
| major Flooding | 878.96 ft |
| moderate Flooding | 875.96 ft |
| minor Flooding | 873.96 ft |
| action | 870.96 ft |
| Latest Value | 865.39 ft |
| Gauge Zero | 860.96 ft |
Gauge Photos
No Images Found
Unique Local Info
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.