Mazon River near Coal City
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
- Upstream gauge unavailableWarning: 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) 03/16/2025 11:45 PM CDTRecord: 19.7 ftLow Threshold: 0.5 ftCATEGORY STAGE 
Major Flooding 19 ft Moderate Flooding 16 ft Minor Flooding 12 ft Action 10 ft Reliability of the Forecast:
NOTE: Forecasts are issued as needed during times of high water, but are not routinely available.
River forecasts for this location take into account past and future precipitation. The stages/flows that will occur may be different if future rainfall is different than forecast.
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
- 24 - Residential structures may be threatened along Forest Drive and West Avenue west of Coal City.
- 22 - Structures may be threatened along Spring Road west of Coal City. Whitetie Road may be threatened west of Coal City.
- 20 - IL-113, Pine Bluff Road, and McArdle Road may be threatened west of Coal City. Reed Road may be threatened southwest of Coal City.
Gauge Info
| Coordinates | 41.2862, -88.3599 |
| RFC | NCRFC |
| State | IL |
| WFO | LOT |
| County | Grundy |
| Data Provider(s) | |
| US Geological Survey | USGS--Water Resources of the United States |
| USGS | 05542000 |
Gauge Location
Recent Crests
| 1. | 10.81 ft | on 06-28-2021 |
| 2. | 17.88 ft | on 05-18-2020 |
| 3. | 13.04 ft | on 04-30-2020 |
| 4. | 16.41 ft | on 05-01-2019 |
| 5. | 12.87 ft | on 02-21-2018 |
Recent Crests
| 1. | 10.81 ft | on 06-28-2021 | |
| 2. | 17.88 ft | on 05-18-2020 | |
| 3. | 13.04 ft | on 04-30-2020 | |
| 4. | 16.41 ft | on 05-01-2019 | |
| 5. | 12.87 ft | on 02-21-2018 | |
| 6. | 11.35 ft | on 05-01-2017 | |
| 7. | 11.57 ft | on 08-29-2016 | |
| 8. | 13.78 ft | on 07-19-2016 | |
| 9. | 16.40 ft | on 12-29-2015 | |
| 10. | 11.75 ft | on 06-27-2015 | |
| 11. | 12.26 ft | on 06-23-2015 | |
| 12. | 12.32 ft | on 08-23-2014 | |
| 13. | 18.00 ft | on 04-18-2013 | |
| 14. | 10.23 ft | on 03-11-2013 | |
| 15. | 15.48 ft | on 05-08-2012 | |
| 16. | 11.50 ft | on 05-26-2011 | |
| 17. | 11.95 ft | on 10-31-2009 | |
| 18. | 15.80 ft | on 03-09-2009 | |
| 19. | 18.54 ft | on 09-15-2008 | |
| 20. | 13.83 ft | on 08-25-2007 | |
| 21. | 15.22 ft | on 01-14-2005 | |
| 22. | 11.35 ft | on 05-31-2004 | |
| 23. | 11.11 ft | on 07-19-2003 | |
| 24. | 15.02 ft | on 05-13-2002 | |
| 25. | 12.56 ft | on 06-14-1999 | |
| 26. | 11.79 ft | on 10-18-1993 | |
| 27. | 12.85 ft | on 09-15-1993 | |
| 28. | 18.83 ft | on 11-28-1990 | |
| 29. | 14.45 ft | on 03-11-1990 | |
| 30. | 15.17 ft | on 09-02-1989 | |
| 31. | 12.34 ft | on 10-04-1986 | |
| 32. | 16.75 ft | on 11-19-1985 | |
| 33. | 17.80 ft | on 02-24-1985 | |
| 34. | 16.82 ft | on 02-13-1984 | |
| 35. | 19.51 ft | on 12-04-1982 | |
| 36. | 13.79 ft | on 03-12-1982 | |
| 37. | 13.64 ft | on 06-14-1981 | |
| 38. | 15.37 ft | on 06-02-1980 | |
| 39. | 16.19 ft | on 04-12-1979 | |
| 40. | 10.06 ft | on 09-19-1978 | |
| 41. | 9.19 ft | on 09-02-1977 | |
| 42. | 12.34 ft | on 03-05-1976 | |
| 43. | 11.36 ft | on 06-16-1975 | |
| 44. | 12.92 ft | on 06-23-1974 | |
| 45. | 14.88 ft | on 12-31-1972 | |
| 46. | 11.96 ft | on 08-08-1972 | |
| 47. | 9.34 ft | on 03-15-1971 | |
| 48. | 18.15 ft | on 05-15-1970 | |
| 49. | 18.11 ft | on 06-26-1968 | |
| 50. | 11.74 ft | on 04-02-1967 | |
| 51. | 12.46 ft | on 05-12-1966 | |
| 52. | 13.03 ft | on 05-05-1965 | |
| 53. | 11.20 ft | on 03-12-1962 | |
| 54. | 10.33 ft | on 09-26-1961 | |
| 55. | 10.58 ft | on 06-14-1960 | |
| 56. | 13.04 ft | on 04-28-1959 | |
| 57. | 19.70 ft | on 07-15-1958 | |
| 58. | 12.64 ft | on 06-19-1957 | |
| 59. | 13.48 ft | on 03-25-1954 | |
| 60. | 9.37 ft | on 03-13-1953 | |
| 61. | 9.97 ft | on 11-14-1951 | |
| 62. | 14.11 ft | on 02-19-1951 | |
| 63. | 18.50 ft | on 04-25-1950 | |
| 64. | 11.20 ft | on 02-13-1949 | |
| 65. | 11.84 ft | on 03-19-1948 | |
| 66. | 15.31 ft | on 04-05-1947 | |
| 67. | 14.76 ft | on 06-13-1946 | |
| 68. | 12.01 ft | on 05-15-1945 | |
| 69. | 16.22 ft | on 04-23-1944 | |
| 70. | 16.13 ft | on 05-12-1943 | |
| 71. | 17.28 ft | on 02-07-1942 | |
| 72. | 21.00 ft | on 08-08-1924 | (P) |
Historic Crests
| 1. | 21.00 ft | on 08-08-1924 | (P) |
| 2. | 19.70 ft | on 07-15-1958 | |
| 3. | 19.51 ft | on 12-04-1982 | |
| 4. | 18.83 ft | on 11-28-1990 | |
| 5. | 18.54 ft | on 09-15-2008 |
Historic Crests
| 1. | 21.00 ft | on 08-08-1924 | (P) |
| 2. | 19.70 ft | on 07-15-1958 | |
| 3. | 19.51 ft | on 12-04-1982 | |
| 4. | 18.83 ft | on 11-28-1990 | |
| 5. | 18.54 ft | on 09-15-2008 | |
| 6. | 18.50 ft | on 04-25-1950 | |
| 7. | 18.15 ft | on 05-15-1970 | |
| 8. | 18.11 ft | on 06-26-1968 | |
| 9. | 18.00 ft | on 04-18-2013 | |
| 10. | 17.88 ft | on 05-18-2020 | |
| 11. | 17.80 ft | on 02-24-1985 | |
| 12. | 17.28 ft | on 02-07-1942 | |
| 13. | 16.82 ft | on 02-13-1984 | |
| 14. | 16.75 ft | on 11-19-1985 | |
| 15. | 16.41 ft | on 05-01-2019 | |
| 16. | 16.40 ft | on 12-29-2015 | |
| 17. | 16.22 ft | on 04-23-1944 | |
| 18. | 16.19 ft | on 04-12-1979 | |
| 19. | 16.13 ft | on 05-12-1943 | |
| 20. | 15.80 ft | on 03-09-2009 | |
| 21. | 15.48 ft | on 05-08-2012 | |
| 22. | 15.37 ft | on 06-02-1980 | |
| 23. | 15.31 ft | on 04-05-1947 | |
| 24. | 15.22 ft | on 01-14-2005 | |
| 25. | 15.17 ft | on 09-02-1989 | |
| 26. | 15.02 ft | on 05-13-2002 | |
| 27. | 14.88 ft | on 12-31-1972 | |
| 28. | 14.76 ft | on 06-13-1946 | |
| 29. | 14.45 ft | on 03-11-1990 | |
| 30. | 14.11 ft | on 02-19-1951 | |
| 31. | 13.83 ft | on 08-25-2007 | |
| 32. | 13.79 ft | on 03-12-1982 | |
| 33. | 13.78 ft | on 07-19-2016 | |
| 34. | 13.64 ft | on 06-14-1981 | |
| 35. | 13.48 ft | on 03-25-1954 | |
| 36. | 13.04 ft | on 04-28-1959 | |
| 37. | 13.04 ft | on 04-30-2020 | |
| 38. | 13.03 ft | on 05-05-1965 | |
| 39. | 12.92 ft | on 06-23-1974 | |
| 40. | 12.87 ft | on 02-21-2018 | |
| 41. | 12.85 ft | on 09-15-1993 | |
| 42. | 12.64 ft | on 06-19-1957 | |
| 43. | 12.56 ft | on 06-14-1999 | |
| 44. | 12.46 ft | on 05-12-1966 | |
| 45. | 12.34 ft | on 03-05-1976 | |
| 46. | 12.34 ft | on 10-04-1986 | |
| 47. | 12.32 ft | on 08-23-2014 | |
| 48. | 12.26 ft | on 06-23-2015 | |
| 49. | 12.01 ft | on 05-15-1945 | |
| 50. | 11.96 ft | on 08-08-1972 | |
| 51. | 11.95 ft | on 10-31-2009 | |
| 52. | 11.84 ft | on 03-19-1948 | |
| 53. | 11.79 ft | on 10-18-1993 | |
| 54. | 11.75 ft | on 06-27-2015 | |
| 55. | 11.74 ft | on 04-02-1967 | |
| 56. | 11.57 ft | on 08-29-2016 | |
| 57. | 11.50 ft | on 05-26-2011 | |
| 58. | 11.36 ft | on 06-16-1975 | |
| 59. | 11.35 ft | on 05-01-2017 | |
| 60. | 11.35 ft | on 05-31-2004 | |
| 61. | 11.20 ft | on 02-13-1949 | |
| 62. | 11.20 ft | on 03-12-1962 | |
| 63. | 11.11 ft | on 07-19-2003 | |
| 64. | 10.81 ft | on 06-28-2021 | |
| 65. | 10.58 ft | on 06-14-1960 | |
| 66. | 10.33 ft | on 09-26-1961 | |
| 67. | 10.23 ft | on 03-11-2013 | |
| 68. | 10.06 ft | on 09-19-1978 | |
| 69. | 9.97 ft | on 11-14-1951 | |
| 70. | 9.37 ft | on 03-13-1953 | |
| 71. | 9.34 ft | on 03-15-1971 | |
| 72. | 9.19 ft | on 09-02-1977 |
Low Water Records
Low Water Records
Vertical Datum Table
| type | NAVD88 |
|---|---|
| major Flooding | 546.21 ft |
| moderate Flooding | 543.21 ft |
| minor Flooding | 539.21 ft |
| action | 537.21 ft |
| Latest Value | 529.86 ft |
| Gauge Zero | 527.21 ft |
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.