Rock River at Lake Koshkonong
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.No secondary data available. Transformations for Flow data and a secondary Y axis cannot be made at this time.
Traces and Thresholds Click to turn on/off display
Observed (OBS) 04/04/2025 1:00 PM CDTRecord: 15.1 ftCATEGORY STAGE 
Major Flooding 11.5 ft Moderate Flooding 11 ft Minor Flooding 10 ft Action 9 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.
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
- 14 - There is widespread flooding of lakeside homes and roads in the Lake Koshkonong area including Vets Lane, Blackhawk Island Road and Oxbow Bend Road.
- 13 - There is widespread flooding of lakeside homes and roads in the Lake Koshkonong area including Vets Lane, Blackhawk Island Road and Oxbow Bend Road.
- 12 - There is widespread flooding of lakeside homes and roads in the Lake Koshkonong area including Vets Lane, Blackhawk Island Road and Oxbow Bend Road.
Gauge Info
| Coordinates | 42.8575, -88.9408 |
| RFC | NCRFC |
| State | WI |
| WFO | MKX |
| County | Rock |
| Data Provider(s) | |
| US Geological Survey | USGS--Water Resources of the United States |
| USGS | 05427235 |
Gauge Location
Recent Crests
| 1. | 10.10 ft | on 07-07-2024 | (P) |
| 2. | 10.01 ft | on 06-13-2024 | (P) |
| 3. | 10.95 ft | on 10-15-2019 | |
| 4. | 11.02 ft | on 10-15-2019 | |
| 5. | 11.50 ft | on 03-25-2019 |
Recent Crests
| 1. | 10.10 ft | on 07-07-2024 | (P) |
| 2. | 10.01 ft | on 06-13-2024 | (P) |
| 3. | 10.95 ft | on 10-15-2019 | |
| 4. | 11.02 ft | on 10-15-2019 | |
| 5. | 11.50 ft | on 03-25-2019 | |
| 6. | 11.07 ft | on 10-15-2018 | (P) |
| 7. | 11.62 ft | on 09-12-2018 | |
| 8. | 10.33 ft | on 05-20-2018 | |
| 9. | 9.78 ft | on 05-06-2017 | |
| 10. | 9.43 ft | on 04-11-2016 | |
| 11. | 8.76 ft | on 12-21-2015 | |
| 12. | 8.69 ft | on 04-22-2015 | |
| 13. | 9.68 ft | on 07-08-2014 | |
| 14. | 9.71 ft | on 05-17-2014 | |
| 15. | 10.02 ft | on 06-30-2013 | |
| 16. | 12.35 ft | on 04-22-2013 | |
| 17. | 10.09 ft | on 03-30-2011 | |
| 18. | 11.17 ft | on 07-31-2010 | |
| 19. | 9.44 ft | on 06-30-2010 | |
| 20. | 9.18 ft | on 03-20-2010 | |
| 21. | 10.02 ft | on 05-02-2009 | |
| 22. | 11.37 ft | on 03-29-2009 | |
| 23. | 15.13 ft | on 06-21-2008 | |
| 24. | 11.65 ft | on 04-18-2008 | |
| 25. | 10.46 ft | on 08-30-2007 | |
| 26. | 10.58 ft | on 04-07-2007 | |
| 27. | 11.49 ft | on 06-05-2004 | |
| 28. | 11.02 ft | on 06-07-2000 | |
| 29. | 9.73 ft | on 04-28-1999 | |
| 30. | 9.77 ft | on 04-23-1998 | |
| 31. | 9.02 ft | on 03-14-1997 | |
| 32. | 8.10 ft | on 08-23-1995 | |
| 33. | 9.19 ft | on 03-21-1994 | |
| 34. | 12.23 ft | on 04-25-1993 | |
| 35. | 8.52 ft | on 12-14-1991 | |
| 36. | 8.93 ft | on 03-31-1991 | |
| 37. | 9.45 ft | on 03-23-1990 |
Historic Crests
| 1. | 15.13 ft | on 06-21-2008 |
| 2. | 12.35 ft | on 04-22-2013 |
| 3. | 12.23 ft | on 04-25-1993 |
| 4. | 11.65 ft | on 04-18-2008 |
| 5. | 11.62 ft | on 09-12-2018 |
Historic Crests
| 1. | 15.13 ft | on 06-21-2008 | |
| 2. | 12.35 ft | on 04-22-2013 | |
| 3. | 12.23 ft | on 04-25-1993 | |
| 4. | 11.65 ft | on 04-18-2008 | |
| 5. | 11.62 ft | on 09-12-2018 | |
| 6. | 11.50 ft | on 03-25-2019 | |
| 7. | 11.49 ft | on 06-05-2004 | |
| 8. | 11.37 ft | on 03-29-2009 | |
| 9. | 11.17 ft | on 07-31-2010 | |
| 10. | 11.07 ft | on 10-15-2018 | (P) |
| 11. | 11.02 ft | on 10-15-2019 | |
| 12. | 11.02 ft | on 06-07-2000 | |
| 13. | 10.95 ft | on 10-15-2019 | |
| 14. | 10.58 ft | on 04-07-2007 | |
| 15. | 10.46 ft | on 08-30-2007 | |
| 16. | 10.33 ft | on 05-20-2018 | |
| 17. | 10.10 ft | on 07-07-2024 | (P) |
| 18. | 10.09 ft | on 03-30-2011 | |
| 19. | 10.02 ft | on 06-30-2013 | |
| 20. | 10.02 ft | on 05-02-2009 | |
| 21. | 10.01 ft | on 06-13-2024 | (P) |
| 22. | 9.78 ft | on 05-06-2017 | |
| 23. | 9.77 ft | on 04-23-1998 | |
| 24. | 9.73 ft | on 04-28-1999 | |
| 25. | 9.71 ft | on 05-17-2014 | |
| 26. | 9.68 ft | on 07-08-2014 | |
| 27. | 9.45 ft | on 03-23-1990 | |
| 28. | 9.44 ft | on 06-30-2010 | |
| 29. | 9.43 ft | on 04-11-2016 | |
| 30. | 9.19 ft | on 03-21-1994 | |
| 31. | 9.18 ft | on 03-20-2010 | |
| 32. | 9.02 ft | on 03-14-1997 | |
| 33. | 8.93 ft | on 03-31-1991 | |
| 34. | 8.76 ft | on 12-21-2015 | |
| 35. | 8.69 ft | on 04-22-2015 | |
| 36. | 8.52 ft | on 12-14-1991 | |
| 37. | 8.10 ft | on 08-23-1995 |
Vertical Datum Table
| type | NAVD88 |
|---|---|
| major Flooding | 781.27 ft |
| moderate Flooding | 780.77 ft |
| minor Flooding | 779.77 ft |
| action | 778.77 ft |
| Latest Value | 776.72 ft |
| Gauge Zero | 769.77 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
Additional Resource Links
- NWS Precipitation and River Forecasting
- Area Hydrographs
- Long Term Palmer Drought Severity Index
- Snow Information
- USGS WI Water Science Center
- High Water Mark Signs
- Levee Safety Information
- June 2008 National Flood Assessment
- How to Estimate River Ice Thickness
- Flood Resiliency at Wastewater Plants
- Manure Management Advisory System
- Historic Flooding Events For Southern Wisconsin
