South Loup River at Ravenna
Future / Actual / Minor
OWP 2.0 WWA Modal Title
01/11/2021, 10:04 PM UTC through 01/11/2021, 10:04 PM UTC
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- Warning: no valid ratings curve available. Transformations to and from FEET/CFS/KCFS will not happen.
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Observed (OBS) 06/03/2025 11:46 AM CDTRecord: 12.6 ftCATEGORY STAGE 
Major Flooding 9.5 ft Moderate Flooding 7.5 ft Minor Flooding 5.5 ft Action 4.5 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 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
- 9.5 - The outskirts of Ravenna between the Mud Creek and the South Loup River flood, or roughly the area south of Highway 2. There are several homes and a few businesses in the floodplain.
- 7.5 - A house downstream of the gauge on Maple Road just off of Highway 2 will begin to flood. Ravenna Road around one quarter mile south of the gauge site will begin to flood.
- 5.5 - Flooding occurs in agricultural lowland near the river.
Gauge Location
Recent Crests
| 1. | 7.80 ft | on 03-15-2019 |
| 2. | 5.50 ft | on 06-22-1975 |
| 3. | 5.05 ft | on 06-09-1974 |
| 4. | 6.65 ft | on 07-24-1973 |
| 5. | 7.41 ft | on 07-26-1972 |
Recent Crests
| 1. | 7.80 ft | on 03-15-2019 |
| 2. | 5.50 ft | on 06-22-1975 |
| 3. | 5.05 ft | on 06-09-1974 |
| 4. | 6.65 ft | on 07-24-1973 |
| 5. | 7.41 ft | on 07-26-1972 |
| 6. | 4.31 ft | on 06-30-1971 |
| 7. | 5.31 ft | on 02-19-1971 |
| 8. | 4.02 ft | on 06-14-1970 |
| 9. | 4.68 ft | on 01-30-1970 |
| 10. | 5.59 ft | on 03-19-1969 |
| 11. | 7.33 ft | on 03-18-1969 |
| 12. | 10.32 ft | on 06-24-1968 |
| 13. | 7.80 ft | on 07-19-1958 |
| 14. | 6.71 ft | on 06-16-1957 |
| 15. | 5.07 ft | on 06-18-1956 |
| 16. | 4.66 ft | on 05-25-1955 |
| 17. | 4.93 ft | on 03-03-1955 |
| 18. | 7.12 ft | on 06-17-1954 |
| 19. | 5.25 ft | on 05-27-1953 |
| 20. | 4.65 ft | on 05-27-1952 |
| 21. | 5.18 ft | on 01-20-1952 |
| 22. | 4.65 ft | on 05-31-1951 |
| 23. | 4.88 ft | on 07-09-1950 |
| 24. | 4.90 ft | on 02-18-1950 |
| 25. | 5.40 ft | on 06-09-1949 |
| 26. | 5.98 ft | on 02-25-1949 |
| 27. | 6.38 ft | on 03-15-1948 |
| 28. | 12.60 ft | on 06-22-1947 |
| 29. | 4.80 ft | on 06-18-1946 |
| 30. | 7.68 ft | on 06-09-1945 |
| 31. | 4.90 ft | on 05-02-1944 |
| 32. | 7.66 ft | on 06-14-1943 |
| 33. | 5.70 ft | on 09-03-1942 |
| 34. | 5.06 ft | on 06-02-1941 |
Historic Crests
| 1. | 12.60 ft | on 06-22-1947 |
| 2. | 10.32 ft | on 06-24-1968 |
| 3. | 7.80 ft | on 03-15-2019 |
| 4. | 7.80 ft | on 07-19-1958 |
| 5. | 7.68 ft | on 06-09-1945 |
Historic Crests
| 1. | 12.60 ft | on 06-22-1947 |
| 2. | 10.32 ft | on 06-24-1968 |
| 3. | 7.80 ft | on 03-15-2019 |
| 4. | 7.80 ft | on 07-19-1958 |
| 5. | 7.68 ft | on 06-09-1945 |
| 6. | 7.66 ft | on 06-14-1943 |
| 7. | 7.41 ft | on 07-26-1972 |
| 8. | 7.33 ft | on 03-18-1969 |
| 9. | 7.12 ft | on 06-17-1954 |
| 10. | 6.71 ft | on 06-16-1957 |
| 11. | 6.65 ft | on 07-24-1973 |
| 12. | 6.38 ft | on 03-15-1948 |
| 13. | 5.98 ft | on 02-25-1949 |
| 14. | 5.70 ft | on 09-03-1942 |
| 15. | 5.59 ft | on 03-19-1969 |
| 16. | 5.50 ft | on 06-22-1975 |
| 17. | 5.40 ft | on 06-09-1949 |
| 18. | 5.31 ft | on 02-19-1971 |
| 19. | 5.25 ft | on 05-27-1953 |
| 20. | 5.18 ft | on 01-20-1952 |
| 21. | 5.07 ft | on 06-18-1956 |
| 22. | 5.06 ft | on 06-02-1941 |
| 23. | 5.05 ft | on 06-09-1974 |
| 24. | 4.93 ft | on 03-03-1955 |
| 25. | 4.90 ft | on 02-18-1950 |
| 26. | 4.90 ft | on 05-02-1944 |
| 27. | 4.88 ft | on 07-09-1950 |
| 28. | 4.80 ft | on 06-18-1946 |
| 29. | 4.68 ft | on 01-30-1970 |
| 30. | 4.66 ft | on 05-25-1955 |
| 31. | 4.65 ft | on 05-31-1951 |
| 32. | 4.65 ft | on 05-27-1952 |
| 33. | 4.31 ft | on 06-30-1971 |
| 34. | 4.02 ft | on 06-14-1970 |
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.