Wood River at Grand Island Diversion
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) 04/03/2025 2:00 AM CDTRecord: 18.1 ftCATEGORY STAGE Major Flooding 21.5 ft Moderate Flooding 20.5 ft Minor Flooding 19.5 ft Action 18 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
- 22.5 - Water reaches the bottom of the Highway 281 bridge.
- 21.5 - The Wood River Diversion Levee will be topped in several locations with flood waters spilling over into businesses located along the levee especially along the south side of the river. Major property damage is expected if the levee were to fail.
- 20 - The Wood River will be within 1.5 feet of topping the levee at the Wood River Diversion on the south side of Grand Island. Damage to the levee and some flooding along the levee will be possible.
- 19.4 - Water reaches the bottom of the railroad bridge downstream of Highway 281 resulting in backwater rises on the west side of the railroad bridge. The rising backwater will quickly begin flowing through the low point in the levee on the north side of the railroad bridge unless this low spot has been previously sandbagged.
- 18 - The water level will be within 1.5 feet of reaching the bottom of the downstream train bridge. Once the water level reaches the bottom of the train bridge there will be increasing backwater just upstream of the train bridge and water will quickly reach the low spot in the levee near the train bridge. Sandbagging of the low spot in the levee near the train brdige will be required prior to reaching a stage of 19.5 feet to protect the levee.
Gauge Location
Recent Crests
1. | 10.62 ft | on 06-10-2023 |
2. | 11.25 ft | on 06-16-2022 |
3. | 14.21 ft | on 03-25-2021 |
4. | 16.77 ft | on 05-27-2020 |
5. | 18.13 ft | on 03-17-2019 |
Recent Crests
1. | 10.62 ft | on 06-10-2023 |
2. | 11.25 ft | on 06-16-2022 |
3. | 14.21 ft | on 03-25-2021 |
4. | 16.77 ft | on 05-27-2020 |
5. | 18.13 ft | on 03-17-2019 |
6. | 13.99 ft | on 07-11-2018 |
7. | 13.75 ft | on 10-07-2017 |
8. | 14.99 ft | on 05-02-2016 |
9. | 14.46 ft | on 06-21-2015 |
10. | 15.17 ft | on 08-14-2014 |
11. | 12.56 ft | on 06-01-2013 |
12. | 12.28 ft | on 05-29-2012 |
13. | 14.54 ft | on 05-28-2011 |
14. | 15.51 ft | on 06-21-2010 |
15. | 14.81 ft | on 06-06-2009 |
16. | 17.10 ft | on 06-08-2008 |
17. | 15.85 ft | on 03-03-2007 |
Historic Crests
1. | 18.13 ft | on 03-17-2019 |
2. | 17.10 ft | on 06-08-2008 |
3. | 16.77 ft | on 05-27-2020 |
4. | 15.85 ft | on 03-03-2007 |
5. | 15.51 ft | on 06-21-2010 |
Historic Crests
1. | 18.13 ft | on 03-17-2019 |
2. | 17.10 ft | on 06-08-2008 |
3. | 16.77 ft | on 05-27-2020 |
4. | 15.85 ft | on 03-03-2007 |
5. | 15.51 ft | on 06-21-2010 |
6. | 15.17 ft | on 08-14-2014 |
7. | 14.99 ft | on 05-02-2016 |
8. | 14.81 ft | on 06-06-2009 |
9. | 14.54 ft | on 05-28-2011 |
10. | 14.46 ft | on 06-21-2015 |
11. | 14.21 ft | on 03-25-2021 |
12. | 13.99 ft | on 07-11-2018 |
13. | 13.75 ft | on 10-07-2017 |
14. | 12.56 ft | on 06-01-2013 |
15. | 12.28 ft | on 05-29-2012 |
16. | 11.25 ft | on 06-16-2022 |
17. | 10.62 ft | on 06-10-2023 |
Gauge Photos
Probability Information
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.