Illinois River near La Salle
Flood Watch
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) 06/18/2025 9:45 AM CDTOfficial Forecast (FCST) 06/18/2025 10:12 AM CDTNormal Pool: 10.2 ftRecord: 34.4 ftLow Threshold: 8.7 ftCATEGORY STAGE 
Major Flooding 31 ft Moderate Flooding 27 ft Minor Flooding 20 ft Action 19 ft Reliability of the Forecast:
NOTE: Forecasts are issued routinely year-round.
River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.
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
- 34.5 - North Utica Village Hall, police department, and wastewater treatment plant property are threatened.
- 33 - A couple structures are threatened near the river in downtown La Salle.
- 32 - Numerous industrial and utility properties are threatened along Water Street near downtown LaSalle. A few residences threatened in North Utica. IL-178 (Clark Street) threatened in North Utica.
Gauge Info
| Coordinates | 41.3236, -89.1108 |
| RFC | NCRFC |
| State | IL |
| WFO | LOT |
| County | La Salle |
| Data Provider(s) | |
| USGS | 411925089063901 |
| COE | Website |
Gauge Location
Recent Crests
| 1. | 33.14 ft | on 05-20-2020 |
| 2. | 26.54 ft | on 05-01-2020 |
| 3. | 23.69 ft | on 01-13-2020 |
| 4. | 24.56 ft | on 11-01-2019 |
| 5. | 26.77 ft | on 09-30-2019 |
Recent Crests
| 1. | 33.14 ft | on 05-20-2020 | |
| 2. | 26.54 ft | on 05-01-2020 | |
| 3. | 23.69 ft | on 01-13-2020 | |
| 4. | 24.56 ft | on 11-01-2019 | |
| 5. | 26.77 ft | on 09-30-2019 | |
| 6. | 21.89 ft | on 07-05-2019 | |
| 7. | 32.14 ft | on 05-03-2019 | |
| 8. | 22.29 ft | on 03-16-2019 | |
| 9. | 24.59 ft | on 02-09-2019 | |
| 10. | 30.61 ft | on 02-23-2018 | |
| 11. | 23.02 ft | on 07-24-2017 | |
| 12. | 27.25 ft | on 05-02-2017 | |
| 13. | 24.56 ft | on 04-08-2017 | |
| 14. | 29.73 ft | on 12-31-2015 | |
| 15. | 28.98 ft | on 06-24-2015 | |
| 16. | 34.44 ft | on 04-20-2013 | |
| 17. | 25.17 ft | on 06-25-2010 | |
| 18. | 32.02 ft | on 03-12-2009 | |
| 19. | 33.79 ft | on 09-16-2008 | |
| 20. | 30.34 ft | on 08-26-2007 | |
| 21. | 28.94 ft | on 01-15-2005 | |
| 22. | 23.86 ft | on 06-02-2004 | |
| 23. | 28.86 ft | on 05-14-2002 | |
| 24. | 22.59 ft | on 07-12-2000 | |
| 25. | 23.81 ft | on 01-26-1999 | |
| 26. | 28.14 ft | on 05-10-1998 | |
| 27. | 30.83 ft | on 02-23-1997 | |
| 28. | 27.62 ft | on 07-20-1996 | |
| 29. | 27.18 ft | on 01-06-1993 | |
| 30. | 29.27 ft | on 11-29-1990 | |
| 31. | 23.50 ft | on 09-11-1989 | |
| 32. | 26.90 ft | on 10-05-1986 | |
| 33. | 31.70 ft | on 03-06-1985 | |
| 34. | 26.60 ft | on 04-06-1983 | |
| 35. | 32.05 ft | on 12-05-1982 | |
| 36. | 31.75 ft | on 03-21-1979 | |
| 37. | 27.80 ft | on 09-19-1977 | |
| 38. | 27.50 ft | on 03-07-1976 | |
| 39. | 26.66 ft | on 05-23-1974 | |
| 40. | 27.26 ft | on 04-24-1973 | |
| 41. | 30.10 ft | on 05-16-1970 | |
| 42. | 26.45 ft | on 05-14-1966 | |
| 43. | 23.35 ft | on 04-26-1965 | |
| 44. | 26.47 ft | on 03-23-1962 | |
| 45. | 25.28 ft | on 09-27-1961 | |
| 46. | 25.90 ft | on 03-31-1960 | |
| 47. | 26.47 ft | on 07-15-1957 | |
| 48. | 27.40 ft | on 10-12-1954 | |
| 49. | 25.50 ft | on 02-20-1951 | |
| 50. | 28.70 ft | on 04-26-1950 | |
| 51. | 27.00 ft | on 03-20-1948 | |
| 52. | 31.00 ft | on 05-22-1943 | |
| 53. | 23.20 ft | on 02-08-1942 | 1 |
| 54. | 23.80 ft | on 05-15-1932 | |
| 55. | 23.80 ft | on 03-13-1922 | |
| 56. | 30.20 ft | on 01-22-1916 | |
| 57. | 28.00 ft | on 03-29-1913 | 1 |
| 58. | 28.80 ft | on 03-08-1908 | 1 |
| 59. | 28.60 ft | on 01-21-1907 | 1 |
| 60. | 29.20 ft | on 03-27-1904 | 1 |
| 61. | 26.90 ft | on 07-20-1902 | 1 |
| 62. | 24.10 ft | on 06-29-1869 | 1 |
Historic Crests
| 1. | 34.44 ft | on 04-20-2013 |
| 2. | 33.79 ft | on 09-16-2008 |
| 3. | 33.14 ft | on 05-20-2020 |
| 4. | 32.14 ft | on 05-03-2019 |
| 5. | 32.05 ft | on 12-05-1982 |
Historic Crests
| 1. | 34.44 ft | on 04-20-2013 | |
| 2. | 33.79 ft | on 09-16-2008 | |
| 3. | 33.14 ft | on 05-20-2020 | |
| 4. | 32.14 ft | on 05-03-2019 | |
| 5. | 32.05 ft | on 12-05-1982 | |
| 6. | 32.02 ft | on 03-12-2009 | |
| 7. | 31.75 ft | on 03-21-1979 | |
| 8. | 31.70 ft | on 03-06-1985 | |
| 9. | 31.00 ft | on 05-22-1943 | |
| 10. | 30.83 ft | on 02-23-1997 | |
| 11. | 30.61 ft | on 02-23-2018 | |
| 12. | 30.34 ft | on 08-26-2007 | |
| 13. | 30.20 ft | on 01-22-1916 | |
| 14. | 30.10 ft | on 05-16-1970 | |
| 15. | 29.73 ft | on 12-31-2015 | |
| 16. | 29.27 ft | on 11-29-1990 | |
| 17. | 29.20 ft | on 03-27-1904 | 1 |
| 18. | 28.98 ft | on 06-24-2015 | |
| 19. | 28.94 ft | on 01-15-2005 | |
| 20. | 28.86 ft | on 05-14-2002 | |
| 21. | 28.80 ft | on 03-08-1908 | 1 |
| 22. | 28.70 ft | on 04-26-1950 | |
| 23. | 28.60 ft | on 01-21-1907 | 1 |
| 24. | 28.14 ft | on 05-10-1998 | |
| 25. | 28.00 ft | on 03-29-1913 | 1 |
| 26. | 27.80 ft | on 09-19-1977 | |
| 27. | 27.62 ft | on 07-20-1996 | |
| 28. | 27.50 ft | on 03-07-1976 | |
| 29. | 27.40 ft | on 10-12-1954 | |
| 30. | 27.26 ft | on 04-24-1973 | |
| 31. | 27.25 ft | on 05-02-2017 | |
| 32. | 27.18 ft | on 01-06-1993 | |
| 33. | 27.00 ft | on 03-20-1948 | |
| 34. | 26.90 ft | on 07-20-1902 | 1 |
| 35. | 26.90 ft | on 10-05-1986 | |
| 36. | 26.77 ft | on 09-30-2019 | |
| 37. | 26.66 ft | on 05-23-1974 | |
| 38. | 26.60 ft | on 04-06-1983 | |
| 39. | 26.54 ft | on 05-01-2020 | |
| 40. | 26.47 ft | on 07-15-1957 | |
| 41. | 26.47 ft | on 03-23-1962 | |
| 42. | 26.45 ft | on 05-14-1966 | |
| 43. | 25.90 ft | on 03-31-1960 | |
| 44. | 25.50 ft | on 02-20-1951 | |
| 45. | 25.28 ft | on 09-27-1961 | |
| 46. | 25.17 ft | on 06-25-2010 | |
| 47. | 24.59 ft | on 02-09-2019 | |
| 48. | 24.56 ft | on 11-01-2019 | |
| 49. | 24.56 ft | on 04-08-2017 | |
| 50. | 24.10 ft | on 06-29-1869 | 1 |
| 51. | 23.86 ft | on 06-02-2004 | |
| 52. | 23.81 ft | on 01-26-1999 | |
| 53. | 23.80 ft | on 03-13-1922 | |
| 54. | 23.80 ft | on 05-15-1932 | |
| 55. | 23.69 ft | on 01-13-2020 | |
| 56. | 23.50 ft | on 09-11-1989 | |
| 57. | 23.35 ft | on 04-26-1965 | |
| 58. | 23.20 ft | on 02-08-1942 | 1 |
| 59. | 23.02 ft | on 07-24-2017 | |
| 60. | 22.59 ft | on 07-12-2000 | |
| 61. | 22.29 ft | on 03-16-2019 | |
| 62. | 21.89 ft | on 07-05-2019 |
Low Water Records
Low Water Records
Vertical Datum Table
| type | NGVD29 |
|---|---|
| major Flooding | 461.00 ft |
| moderate Flooding | 457.00 ft |
| minor Flooding | 450.00 ft |
| action | 449.00 ft |
| Latest Value | 441.75 ft |
| Gauge Zero | 430.00 ft |
Gauge Photos
No Images Found
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.