Thornapple River at Caledonia
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
- Downstream 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) 04/04/2025 3:45 PM EDTOfficial Forecast (FCST) 04/04/2025 10:51 AM EDTRecord: 14.4 ftCATEGORY STAGE 
Major Flooding 14 ft Moderate Flooding 12 ft Minor Flooding 10 ft Action 8 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 precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time.
Stage may be affected by ice during winter months.
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
- 13 - Thornapple River Drive is flooded.
- 11 - High water begins to impact home on island below Cascade Dam.
- 10 - Minor flooding of low lying areas occurs.
Gauge Info
| Coordinates | 42.8111, -85.4834 |
| RFC | NCRFC |
| State | MI |
| WFO | GRR |
| County | Kent |
| Data Provider(s) | |
| US Geological Survey | USGS--Water Resources of the United States |
| USGS | 04118000 |
Gauge Location
Recent Crests
| 1. | 11.35 ft | on 04-06-2023 |
| 2. | 8.01 ft | on 02-24-2022 |
| 3. | 8.73 ft | on 06-27-2021 |
| 4. | 11.50 ft | on 05-21-2020 |
| 5. | 8.20 ft | on 03-15-2019 |
Recent Crests
| 1. | 11.35 ft | on 04-06-2023 |
| 2. | 8.01 ft | on 02-24-2022 |
| 3. | 8.73 ft | on 06-27-2021 |
| 4. | 11.50 ft | on 05-21-2020 |
| 5. | 8.20 ft | on 03-15-2019 |
| 6. | 11.79 ft | on 02-24-2018 |
| 7. | 9.87 ft | on 04-09-2017 |
| 8. | 7.17 ft | on 04-11-2016 |
| 9. | 7.05 ft | on 06-15-2015 |
| 10. | 7.52 ft | on 03-24-2014 |
| 11. | 11.69 ft | on 04-19-2013 |
| 12. | 7.16 ft | on 03-03-2012 |
| 13. | 9.00 ft | on 08-01-2011 |
| 14. | 8.70 ft | on 03-15-2010 |
| 15. | 10.33 ft | on 12-28-2008 |
| 16. | 9.47 ft | on 06-11-2008 |
| 17. | 8.17 ft | on 03-14-2007 |
| 18. | 7.11 ft | on 03-14-2006 |
| 19. | 9.15 ft | on 01-16-2005 |
| 20. | 11.21 ft | on 05-26-2004 |
| 21. | 6.37 ft | on 04-07-2003 |
| 22. | 7.45 ft | on 03-10-2002 |
| 23. | 9.37 ft | on 02-15-2001 |
| 24. | 9.79 ft | on 05-19-2000 |
| 25. | 8.58 ft | on 04-24-1999 |
| 26. | 7.14 ft | on 03-20-1998 |
| 27. | 10.60 ft | on 02-22-1997 |
| 28. | 8.45 ft | on 06-22-1996 |
| 29. | 7.31 ft | on 11-07-1994 |
| 30. | 8.11 ft | on 02-24-1994 |
| 31. | 9.58 ft | on 04-23-1993 |
| 32. | 9.10 ft | on 01-05-1993 |
| 33. | 7.07 ft | on 12-01-1991 |
| 34. | 9.44 ft | on 12-01-1990 |
| 35. | 9.82 ft | on 06-04-1989 |
| 36. | 7.80 ft | on 12-21-1987 |
| 37. | 9.59 ft | on 10-05-1986 |
| 38. | 9.87 ft | on 03-15-1986 |
| 39. | 11.43 ft | on 02-27-1985 |
| 40. | 7.11 ft | on 02-15-1984 |
| 41. | 8.94 ft | on 02-22-1981 |
| 42. | 5.99 ft | on 04-12-1980 |
| 43. | 9.86 ft | on 03-09-1979 |
| 44. | 7.68 ft | on 03-26-1978 |
| 45. | 5.55 ft | on 03-10-1977 |
| 46. | 9.25 ft | on 03-08-1976 |
| 47. | 10.96 ft | on 04-22-1975 |
| 48. | 8.93 ft | on 01-03-1973 |
| 49. | 7.96 ft | on 04-19-1972 |
| 50. | 7.62 ft | on 02-27-1971 |
| 51. | 7.76 ft | on 04-13-1970 |
| 52. | 7.03 ft | on 02-01-1969 |
| 53. | 8.38 ft | on 02-05-1968 |
| 54. | 7.21 ft | on 03-29-1967 |
| 55. | 6.18 ft | on 02-11-1966 |
| 56. | 8.78 ft | on 04-10-1965 |
| 57. | 4.61 ft | on 04-07-1964 |
| 58. | 6.14 ft | on 03-21-1963 |
| 59. | 8.28 ft | on 03-22-1962 |
| 60. | 5.97 ft | on 04-28-1961 |
| 61. | 10.60 ft | on 04-02-1960 |
| 62. | 8.27 ft | on 03-21-1959 |
| 63. | 6.41 ft | on 03-03-1958 |
| 64. | 8.35 ft | on 05-22-1957 |
| 65. | 10.79 ft | on 05-10-1956 |
| 66. | 7.44 ft | on 10-06-1954 |
| 67. | 7.62 ft | on 03-26-1954 |
| 68. | 5.36 ft | on 03-16-1953 |
| 69. | 8.96 ft | on 04-13-1952 |
| 70. | 14.40 ft | on 04-07-1947 |
Historic Crests
| 1. | 14.40 ft | on 04-07-1947 |
| 2. | 11.79 ft | on 02-24-2018 |
| 3. | 11.69 ft | on 04-19-2013 |
| 4. | 11.50 ft | on 05-21-2020 |
| 5. | 11.43 ft | on 02-27-1985 |
Historic Crests
| 1. | 14.40 ft | on 04-07-1947 |
| 2. | 11.79 ft | on 02-24-2018 |
| 3. | 11.69 ft | on 04-19-2013 |
| 4. | 11.50 ft | on 05-21-2020 |
| 5. | 11.43 ft | on 02-27-1985 |
| 6. | 11.35 ft | on 04-06-2023 |
| 7. | 11.21 ft | on 05-26-2004 |
| 8. | 10.96 ft | on 04-22-1975 |
| 9. | 10.79 ft | on 05-10-1956 |
| 10. | 10.60 ft | on 04-02-1960 |
| 11. | 10.60 ft | on 02-22-1997 |
| 12. | 10.33 ft | on 12-28-2008 |
| 13. | 9.87 ft | on 03-15-1986 |
| 14. | 9.87 ft | on 04-09-2017 |
| 15. | 9.86 ft | on 03-09-1979 |
| 16. | 9.82 ft | on 06-04-1989 |
| 17. | 9.79 ft | on 05-19-2000 |
| 18. | 9.59 ft | on 10-05-1986 |
| 19. | 9.58 ft | on 04-23-1993 |
| 20. | 9.47 ft | on 06-11-2008 |
| 21. | 9.44 ft | on 12-01-1990 |
| 22. | 9.37 ft | on 02-15-2001 |
| 23. | 9.25 ft | on 03-08-1976 |
| 24. | 9.15 ft | on 01-16-2005 |
| 25. | 9.10 ft | on 01-05-1993 |
| 26. | 9.00 ft | on 08-01-2011 |
| 27. | 8.96 ft | on 04-13-1952 |
| 28. | 8.94 ft | on 02-22-1981 |
| 29. | 8.93 ft | on 01-03-1973 |
| 30. | 8.78 ft | on 04-10-1965 |
| 31. | 8.73 ft | on 06-27-2021 |
| 32. | 8.70 ft | on 03-15-2010 |
| 33. | 8.58 ft | on 04-24-1999 |
| 34. | 8.45 ft | on 06-22-1996 |
| 35. | 8.38 ft | on 02-05-1968 |
| 36. | 8.35 ft | on 05-22-1957 |
| 37. | 8.28 ft | on 03-22-1962 |
| 38. | 8.27 ft | on 03-21-1959 |
| 39. | 8.20 ft | on 03-15-2019 |
| 40. | 8.17 ft | on 03-14-2007 |
| 41. | 8.11 ft | on 02-24-1994 |
| 42. | 8.01 ft | on 02-24-2022 |
| 43. | 7.96 ft | on 04-19-1972 |
| 44. | 7.80 ft | on 12-21-1987 |
| 45. | 7.76 ft | on 04-13-1970 |
| 46. | 7.68 ft | on 03-26-1978 |
| 47. | 7.62 ft | on 02-27-1971 |
| 48. | 7.62 ft | on 03-26-1954 |
| 49. | 7.52 ft | on 03-24-2014 |
| 50. | 7.45 ft | on 03-10-2002 |
| 51. | 7.44 ft | on 10-06-1954 |
| 52. | 7.31 ft | on 11-07-1994 |
| 53. | 7.21 ft | on 03-29-1967 |
| 54. | 7.17 ft | on 04-11-2016 |
| 55. | 7.16 ft | on 03-03-2012 |
| 56. | 7.14 ft | on 03-20-1998 |
| 57. | 7.11 ft | on 03-14-2006 |
| 58. | 7.11 ft | on 02-15-1984 |
| 59. | 7.07 ft | on 12-01-1991 |
| 60. | 7.05 ft | on 06-15-2015 |
| 61. | 7.03 ft | on 02-01-1969 |
| 62. | 6.41 ft | on 03-03-1958 |
| 63. | 6.37 ft | on 04-07-2003 |
| 64. | 6.18 ft | on 02-11-1966 |
| 65. | 6.14 ft | on 03-21-1963 |
| 66. | 5.99 ft | on 04-12-1980 |
| 67. | 5.97 ft | on 04-28-1961 |
| 68. | 5.55 ft | on 03-10-1977 |
| 69. | 5.36 ft | on 03-16-1953 |
| 70. | 4.61 ft | on 04-07-1964 |
Vertical Datum Table
| type | NAVD88 |
|---|---|
| major Flooding | 689.89 ft |
| moderate Flooding | 687.89 ft |
| minor Flooding | 685.89 ft |
| action | 683.89 ft |
| Latest Value | 683.38 ft |
| Gauge Zero | 675.89 ft |
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.
Resources
Hydrologic Resource Links
- River Forecast Centers
- Text Products
- Past Precipitation
- Forecast Precipitation
- USGS Water Watch for Michigan
- Hydrometeorological Design Studies Center
- National Operational Hydrologic Remote Sensing Center
- United States Water Monitor
- USGS Water Watch
- National Precipitation Graphic Suite
- Inundation Mapping Locations
- Zoomable Precipitation Map
- National Snowfall Map
- Local Hydrologic Reports (E3/E5)
Additional Resource Links
- NWS Precipitation and River Forecasting
- Area Hydrographs
- NOAA Great Lakes Water Levels
- Floodsmart
- Flood Safety
- Emergency Preparedness and Response
- Palmer Drought Index
- U.S. Drought Assessment
- U.S. Drought Portal
- U.S. Drought Monitor for Michigan
- NOAA Climate Services
- Snow Information
- The Cost of Flooding
- NowCOAST
WFO Information
Weather Forecast Office
Grand Rapids
4899 Tim Dougherty Drive SE
Grand Rapids, MI 49512-4034
Official Homepage