West Nishnabotna River near Hancock
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
- 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) 06/28/2025 2:00 PM CDTRecord: 23.5 ftCATEGORY STAGE 
Major Flooding 23 ft Moderate Flooding 19 ft Minor Flooding 14 ft Action 12 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
- 29 - Water reaches the bottom of the bridge deck at the gage site.
- 24 - The top of the berm protecting the lagoons for the city of Hancock are overtopped.
- 23 - Widespread flooding occurs along the reach of the river but Hancock is still safe from the flood waters.
- 22 - The lowland areas of Avoca begin to flood. The degree of flooding also depends on how high the water is on the West Branch which flows along the east side of town.
- 21 - G30 road begins to flood west of Hancock.
- 19 - The lowland areas in Oakland, generally west of Highway 59, begin to flood.
- 18 - Though low-lying areas of the park have already flooded, at this level the majority of the park is underwater.
- 17 - The paved road leading from G30 to Botna Bend Park is flooded.
- 15.5 - The bathroom facility at Botna Bend Park floods.
- 14 - Low-lying areas of Botna Bend Park in Hancock begin to flood. In addition, lowland flooding along the river begins.
Gauge Location
Recent Crests
| 1. | 13.03 ft | on 05-21-2024 |
| 2. | 11.39 ft | on 02-27-2023 |
| 3. | 5.46 ft | on 06-16-2022 |
| 4. | 4.42 ft | on 03-04-2021 |
| 5. | 7.74 ft | on 02-18-2020 |
Recent Crests
| 1. | 13.03 ft | on 05-21-2024 |
| 2. | 11.39 ft | on 02-27-2023 |
| 3. | 5.46 ft | on 06-16-2022 |
| 4. | 4.42 ft | on 03-04-2021 |
| 5. | 7.74 ft | on 02-18-2020 |
| 6. | 22.36 ft | on 03-14-2019 |
| 7. | 9.12 ft | on 08-20-2018 |
| 8. | 9.05 ft | on 05-20-2017 |
| 9. | 12.95 ft | on 05-10-2016 |
| 10. | 14.32 ft | on 12-14-2015 |
| 11. | 16.44 ft | on 09-01-2014 |
| 12. | 9.55 ft | on 05-27-2013 |
| 13. | 5.91 ft | on 05-06-2012 |
| 14. | 11.20 ft | on 06-21-2011 |
| 15. | 14.36 ft | on 06-27-2010 |
| 16. | 10.35 ft | on 07-04-2009 |
| 17. | 18.47 ft | on 06-12-2008 |
| 18. | 20.53 ft | on 05-06-2007 |
| 19. | 3.41 ft | on 09-18-2006 |
| 20. | 10.45 ft | on 06-11-2005 |
| 21. | 17.19 ft | on 05-25-2004 |
| 22. | 11.92 ft | on 05-04-2003 |
| 23. | 6.14 ft | on 06-13-2002 |
| 24. | 11.34 ft | on 03-15-2001 |
| 25. | 3.18 ft | on 06-26-2000 |
| 26. | 12.18 ft | on 07-03-1999 |
| 27. | 17.53 ft | on 06-15-1998 |
| 28. | 17.00 ft | on 02-18-1997 |
| 29. | 17.71 ft | on 08-05-1996 |
| 30. | 17.91 ft | on 07-17-1996 |
| 31. | 17.00 ft | on 06-21-1996 |
| 32. | 8.20 ft | on 03-12-1995 |
| 33. | 12.58 ft | on 06-12-1994 |
| 34. | 23.52 ft | on 07-10-1993 |
| 35. | 5.74 ft | on 07-30-1992 |
| 36. | 12.68 ft | on 06-14-1991 |
| 37. | 18.33 ft | on 06-17-1990 |
| 38. | 19.44 ft | on 09-08-1989 |
| 39. | 7.45 ft | on 06-08-1988 |
| 40. | 9.97 ft | on 08-26-1987 |
| 41. | 12.39 ft | on 10-11-1986 |
| 42. | 15.19 ft | on 05-10-1986 |
| 43. | 9.48 ft | on 12-28-1984 |
| 44. | 14.52 ft | on 06-15-1984 |
| 45. | 11.70 ft | on 02-20-1983 |
| 46. | 15.84 ft | on 02-21-1982 |
| 47. | 6.75 ft | on 05-04-1981 |
| 48. | 14.01 ft | on 06-15-1980 |
| 49. | 19.54 ft | on 03-18-1979 |
| 50. | 17.85 ft | on 09-13-1978 |
| 51. | 4.70 ft | on 09-01-1977 |
| 52. | 12.70 ft | on 06-13-1976 |
| 53. | 14.13 ft | on 04-28-1975 |
| 54. | 12.81 ft | on 05-19-1974 |
| 55. | 16.54 ft | on 09-26-1973 |
| 56. | 22.12 ft | on 09-13-1972 |
| 57. | 18.56 ft | on 02-19-1971 |
| 58. | 9.89 ft | on 05-13-1970 |
| 59. | 15.02 ft | on 03-18-1969 |
| 60. | 6.41 ft | on 06-25-1968 |
| 61. | 14.16 ft | on 06-16-1967 |
| 62. | 9.07 ft | on 06-12-1966 |
| 63. | 15.39 ft | on 03-17-1965 |
| 64. | 20.44 ft | on 03-01-1965 |
| 65. | 14.50 ft | on 05-26-1964 |
| 66. | 9.75 ft | on 03-11-1963 |
| 67. | 13.50 ft | on 05-29-1962 |
| 68. | 10.31 ft | on 03-14-1961 |
| 69. | 13.64 ft | on 03-29-1960 |
Historic Crests
| 1. | 23.52 ft | on 07-10-1993 |
| 2. | 22.36 ft | on 03-14-2019 |
| 3. | 22.12 ft | on 09-13-1972 |
| 4. | 20.53 ft | on 05-06-2007 |
| 5. | 20.44 ft | on 03-01-1965 |
Historic Crests
| 1. | 23.52 ft | on 07-10-1993 |
| 2. | 22.36 ft | on 03-14-2019 |
| 3. | 22.12 ft | on 09-13-1972 |
| 4. | 20.53 ft | on 05-06-2007 |
| 5. | 20.44 ft | on 03-01-1965 |
| 6. | 19.54 ft | on 03-18-1979 |
| 7. | 19.44 ft | on 09-08-1989 |
| 8. | 18.56 ft | on 02-19-1971 |
| 9. | 18.47 ft | on 06-12-2008 |
| 10. | 18.33 ft | on 06-17-1990 |
| 11. | 17.91 ft | on 07-17-1996 |
| 12. | 17.85 ft | on 09-13-1978 |
| 13. | 17.71 ft | on 08-05-1996 |
| 14. | 17.53 ft | on 06-15-1998 |
| 15. | 17.19 ft | on 05-25-2004 |
| 16. | 17.00 ft | on 06-21-1996 |
| 17. | 17.00 ft | on 02-18-1997 |
| 18. | 16.54 ft | on 09-26-1973 |
| 19. | 16.44 ft | on 09-01-2014 |
| 20. | 15.84 ft | on 02-21-1982 |
| 21. | 15.39 ft | on 03-17-1965 |
| 22. | 15.19 ft | on 05-10-1986 |
| 23. | 15.02 ft | on 03-18-1969 |
| 24. | 14.52 ft | on 06-15-1984 |
| 25. | 14.50 ft | on 05-26-1964 |
| 26. | 14.36 ft | on 06-27-2010 |
| 27. | 14.32 ft | on 12-14-2015 |
| 28. | 14.16 ft | on 06-16-1967 |
| 29. | 14.13 ft | on 04-28-1975 |
| 30. | 14.01 ft | on 06-15-1980 |
| 31. | 13.64 ft | on 03-29-1960 |
| 32. | 13.50 ft | on 05-29-1962 |
| 33. | 13.03 ft | on 05-21-2024 |
| 34. | 12.95 ft | on 05-10-2016 |
| 35. | 12.81 ft | on 05-19-1974 |
| 36. | 12.70 ft | on 06-13-1976 |
| 37. | 12.68 ft | on 06-14-1991 |
| 38. | 12.58 ft | on 06-12-1994 |
| 39. | 12.39 ft | on 10-11-1986 |
| 40. | 12.18 ft | on 07-03-1999 |
| 41. | 11.92 ft | on 05-04-2003 |
| 42. | 11.70 ft | on 02-20-1983 |
| 43. | 11.39 ft | on 02-27-2023 |
| 44. | 11.34 ft | on 03-15-2001 |
| 45. | 11.20 ft | on 06-21-2011 |
| 46. | 10.45 ft | on 06-11-2005 |
| 47. | 10.35 ft | on 07-04-2009 |
| 48. | 10.31 ft | on 03-14-1961 |
| 49. | 9.97 ft | on 08-26-1987 |
| 50. | 9.89 ft | on 05-13-1970 |
| 51. | 9.75 ft | on 03-11-1963 |
| 52. | 9.55 ft | on 05-27-2013 |
| 53. | 9.48 ft | on 12-28-1984 |
| 54. | 9.12 ft | on 08-20-2018 |
| 55. | 9.07 ft | on 06-12-1966 |
| 56. | 9.05 ft | on 05-20-2017 |
| 57. | 8.20 ft | on 03-12-1995 |
| 58. | 7.74 ft | on 02-18-2020 |
| 59. | 7.45 ft | on 06-08-1988 |
| 60. | 6.75 ft | on 05-04-1981 |
| 61. | 6.41 ft | on 06-25-1968 |
| 62. | 6.14 ft | on 06-13-2002 |
| 63. | 5.91 ft | on 05-06-2012 |
| 64. | 5.74 ft | on 07-30-1992 |
| 65. | 5.46 ft | on 06-16-2022 |
| 66. | 4.70 ft | on 09-01-1977 |
| 67. | 4.42 ft | on 03-04-2021 |
| 68. | 3.41 ft | on 09-18-2006 |
| 69. | 3.18 ft | on 06-26-2000 |
Vertical Datum Table
| type | NAVD88 |
|---|---|
| major Flooding | 1109.22 ft |
| moderate Flooding | 1105.22 ft |
| minor Flooding | 1100.22 ft |
| action | 1098.22 ft |
| Latest Value | 1089.58 ft |
| Gauge Zero | 1086.22 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.