Big Wood River near Ketchum
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) 06/25/2025 6:45 PM MDTOfficial Forecast (FCST) 06/25/2025 5:10 PM MDTRecord: 9.9 ftCATEGORY STAGE 
Major Flooding 10 ft Moderate Flooding 9 ft Minor Flooding 8 ft Action 7.5 ft Reliability of the Forecast: Forecast data shown here are guidance values only. Please refer to your local NWS office.
NOTE: Forecasts are issued routinely year-round.
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
- 10 - Widespread lowland flooding from Easley Hot Springs dowriver to Ketchum. Numerous properties will have water inundation. Sun Peak Picnic area flooded; Idaho Highwyat 75 may have erosion problems in several locations.
- 9 - Widespread lowland flooding from Easley Hot Springs downriver to Ketchum. Many properties will have water inundation. Sun Peak Picnic area flooded; Idaho Highway 75 may have bank erosion from Cottonwood Lane to Glassford Drive.
- 8 - Lowland flooding from near the SNRA building downriver into Ketchum. Property near Chocolate Gulch Road downstream to Ketchum will have flooding; Sun Peak Picnic Area flooded; Fox Creek Trailhead may be closed
Gauge Info
| Coordinates | 43.7865, -114.425 |
| RFC | NWRFC |
| State | ID |
| WFO | PIH |
| County | Blaine |
| Data Provider(s) | |
| US Geological Survey | USGS--Water Resources of the United States |
| USGS | 13135500 |
Gauge Location
Recent Crests
| 1. | 7.52 ft | on 06-12-2022 |
| 2. | 6.08 ft | on 06-05-2021 |
| 3. | 6.52 ft | on 05-31-2020 |
| 4. | 7.49 ft | on 06-06-2019 |
| 5. | 7.35 ft | on 05-27-2018 |
Recent Crests
| 1. | 7.52 ft | on 06-12-2022 |
| 2. | 6.08 ft | on 06-05-2021 |
| 3. | 6.52 ft | on 05-31-2020 |
| 4. | 7.49 ft | on 06-06-2019 |
| 5. | 7.35 ft | on 05-27-2018 |
| 6. | 9.89 ft | on 05-07-2017 |
| 7. | 7.17 ft | on 06-06-2016 |
| 8. | 6.45 ft | on 06-01-2015 |
| 9. | 6.75 ft | on 05-29-2014 |
| 10. | 6.87 ft | on 05-14-2013 |
| 11. | 8.74 ft | on 04-26-2012 |
| 12. | 7.61 ft | on 06-24-2011 |
| 13. | 5.50 ft | on 06-22-1971 |
| 14. | 4.90 ft | on 06-09-1970 |
| 15. | 5.36 ft | on 05-27-1969 |
| 16. | 4.01 ft | on 06-03-1968 |
| 17. | 5.92 ft | on 05-24-1967 |
| 18. | 3.97 ft | on 05-30-1966 |
| 19. | 6.01 ft | on 06-12-1965 |
| 20. | 5.55 ft | on 06-04-1957 |
| 21. | 6.44 ft | on 05-24-1956 |
Historic Crests
| 1. | 9.89 ft | on 05-07-2017 |
| 2. | 8.74 ft | on 04-26-2012 |
| 3. | 7.61 ft | on 06-24-2011 |
| 4. | 7.52 ft | on 06-12-2022 |
| 5. | 7.49 ft | on 06-06-2019 |
Historic Crests
| 1. | 9.89 ft | on 05-07-2017 |
| 2. | 8.74 ft | on 04-26-2012 |
| 3. | 7.61 ft | on 06-24-2011 |
| 4. | 7.52 ft | on 06-12-2022 |
| 5. | 7.49 ft | on 06-06-2019 |
| 6. | 7.35 ft | on 05-27-2018 |
| 7. | 7.17 ft | on 06-06-2016 |
| 8. | 6.87 ft | on 05-14-2013 |
| 9. | 6.75 ft | on 05-29-2014 |
| 10. | 6.52 ft | on 05-31-2020 |
| 11. | 6.45 ft | on 06-01-2015 |
| 12. | 6.44 ft | on 05-24-1956 |
| 13. | 6.08 ft | on 06-05-2021 |
| 14. | 6.01 ft | on 06-12-1965 |
| 15. | 5.92 ft | on 05-24-1967 |
| 16. | 5.55 ft | on 06-04-1957 |
| 17. | 5.50 ft | on 06-22-1971 |
| 18. | 5.36 ft | on 05-27-1969 |
| 19. | 4.90 ft | on 06-09-1970 |
| 20. | 4.01 ft | on 06-03-1968 |
| 21. | 3.97 ft | on 05-30-1966 |
Vertical Datum Table
| type | NAVD88 |
|---|---|
| major Flooding | 6235.02 ft |
| moderate Flooding | 6234.02 ft |
| minor Flooding | 6233.02 ft |
| action | 6232.52 ft |
| Latest Value | 6230.54 ft |
| Gauge Zero | 6225.02 ft |
Gauge Photos
No Images Found
Unique Local Info
Big Wood River Flood Inundation Maps from the U.S. Army Corps of Engineers
Historical Peak Flows     (Scroll to Streamflow Statistics for more years)USGS Historical Peak Flows Explanation
Graphical View of Historical Peak Flows and Gage AnalysisÂ
25 Â Â Year Peak Flood 1890 CFS or 8.32 ft
50 Â Year Peak Flood 2130 CFS or 8.41 ft
100 Year Peak Flood 2370 CFS or 8.57 ft
200 Year Peak Flood 2620 CFS or 8.73 ft
500 Year Peak Flood 2950 CFS or 8.92 ft
Â
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.