Henrys Fork near Rexburg
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) 06/20/2025 8:15 PM MDTOfficial Forecast (FCST) 06/20/2025 3:28 PM MDTRecord: 12.1 ftCATEGORY STAGE 
Major Flooding 13 ft Moderate Flooding 11.5 ft Minor Flooding 9.5 ft Action 9 ft Reliability of the Forecast:
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
- 13 - Major and extensive flooding of farmland and pastureland near the river especially on the east bank will occur. Flooding/overtopping of access roads near the river will cut off local access. Water may start to back up on the upstream side of the Idaho State Highway 33 bridge (over the Henrys Fork) with large amounts of woody debris distributed throughout the reach. An irrigation water pump at Beaver Dick Park will be submerged and the USGS gagehouse will become affected.
- 11.5 - Moderate flooding of farmland and pastureland near the river and side channels/sloughs will occur with impacts to farm outbuildings near W 2700 S. Some low lying secondary and access roads near the river will have water over them.
- 9.5 - Minor flooding of farmland near the river will occur between the confluence of the Snake River and upstream to near St. Anthony. Lower Beaver Dick Park is under water and some picnic shelters are inaccessible. Portions of Warm Slough Access will be under water.
Gauge Info
| Coordinates | 43.8259, -111.905 |
| RFC | NWRFC |
| State | ID |
| WFO | PIH |
| County | Madison |
| Data Provider(s) | |
| US Geological Survey | USGS--Water Resources of the United States |
| USGS | 13056500 |
Gauge Location
Recent Crests
| 1. | 9.55 ft | on 06-15-2022 |
| 2. | 7.80 ft | on 05-24-2021 |
| 3. | 9.32 ft | on 06-08-2020 |
| 4. | 9.66 ft | on 05-19-2019 |
| 5. | 10.15 ft | on 05-26-2018 |
Recent Crests
| 1. | 9.55 ft | on 06-15-2022 |
| 2. | 7.80 ft | on 05-24-2021 |
| 3. | 9.32 ft | on 06-08-2020 |
| 4. | 9.66 ft | on 05-19-2019 |
| 5. | 10.15 ft | on 05-26-2018 |
| 6. | 9.59 ft | on 06-15-2017 |
| 7. | 7.48 ft | on 05-23-2016 |
| 8. | 7.25 ft | on 05-18-2015 |
| 9. | 8.38 ft | on 05-30-2014 |
| 10. | 7.44 ft | on 05-20-2013 |
| 11. | 9.28 ft | on 04-28-2012 |
| 12. | 11.87 ft | on 06-09-2011 |
| 13. | 11.30 ft | on 06-09-2010 |
| 14. | 9.74 ft | on 06-23-2009 |
| 15. | 10.43 ft | on 05-22-2008 |
| 16. | 6.89 ft | on 05-04-2007 |
| 17. | 10.10 ft | on 05-24-2006 |
| 18. | 11.21 ft | on 06-12-1997 |
| 19. | 11.26 ft | on 05-18-1996 |
| 20. | 10.40 ft | on 05-17-1993 |
| 21. | 10.02 ft | on 05-12-1989 |
| 22. | 9.96 ft | on 06-04-1986 |
| 23. | 9.95 ft | on 05-05-1985 |
| 24. | 12.05 ft | on 05-17-1984 |
| 25. | 10.50 ft | on 06-13-1983 |
| 26. | 10.12 ft | on 05-29-1982 |
| 27. | 10.23 ft | on 06-11-1981 |
| 28. | 9.77 ft | on 05-17-1978 |
| 29. | 9.78 ft | on 05-16-1976 |
| 30. | 10.22 ft | on 06-05-1975 |
| 31. | 9.80 ft | on 06-07-1974 |
| 32. | 9.38 ft | on 06-11-1972 |
| 33. | 10.02 ft | on 05-14-1971 |
| 34. | 10.30 ft | on 05-29-1970 |
| 35. | 9.70 ft | on 06-14-1968 |
| 36. | 9.13 ft | on 05-31-1967 |
| 37. | 9.52 ft | on 06-28-1965 |
| 38. | 10.18 ft | on 06-20-1964 |
Historic Crests
| 1. | 12.05 ft | on 05-17-1984 |
| 2. | 11.87 ft | on 06-09-2011 |
| 3. | 11.30 ft | on 06-09-2010 |
| 4. | 11.26 ft | on 05-18-1996 |
| 5. | 11.21 ft | on 06-12-1997 |
Historic Crests
| 1. | 12.05 ft | on 05-17-1984 |
| 2. | 11.87 ft | on 06-09-2011 |
| 3. | 11.30 ft | on 06-09-2010 |
| 4. | 11.26 ft | on 05-18-1996 |
| 5. | 11.21 ft | on 06-12-1997 |
| 6. | 10.50 ft | on 06-13-1983 |
| 7. | 10.43 ft | on 05-22-2008 |
| 8. | 10.40 ft | on 05-17-1993 |
| 9. | 10.30 ft | on 05-29-1970 |
| 10. | 10.23 ft | on 06-11-1981 |
| 11. | 10.22 ft | on 06-05-1975 |
| 12. | 10.18 ft | on 06-20-1964 |
| 13. | 10.15 ft | on 05-26-2018 |
| 14. | 10.12 ft | on 05-29-1982 |
| 15. | 10.10 ft | on 05-24-2006 |
| 16. | 10.02 ft | on 05-12-1989 |
| 17. | 10.02 ft | on 05-14-1971 |
| 18. | 9.96 ft | on 06-04-1986 |
| 19. | 9.95 ft | on 05-05-1985 |
| 20. | 9.80 ft | on 06-07-1974 |
| 21. | 9.78 ft | on 05-16-1976 |
| 22. | 9.77 ft | on 05-17-1978 |
| 23. | 9.74 ft | on 06-23-2009 |
| 24. | 9.70 ft | on 06-14-1968 |
| 25. | 9.66 ft | on 05-19-2019 |
| 26. | 9.59 ft | on 06-15-2017 |
| 27. | 9.55 ft | on 06-15-2022 |
| 28. | 9.52 ft | on 06-28-1965 |
| 29. | 9.38 ft | on 06-11-1972 |
| 30. | 9.32 ft | on 06-08-2020 |
| 31. | 9.28 ft | on 04-28-2012 |
| 32. | 9.13 ft | on 05-31-1967 |
| 33. | 8.38 ft | on 05-30-2014 |
| 34. | 7.80 ft | on 05-24-2021 |
| 35. | 7.48 ft | on 05-23-2016 |
| 36. | 7.44 ft | on 05-20-2013 |
| 37. | 7.25 ft | on 05-18-2015 |
| 38. | 6.89 ft | on 05-04-2007 |
Vertical Datum Table
| type | NGVD29 |
|---|---|
| major Flooding | 4819.35 ft |
| moderate Flooding | 4817.85 ft |
| minor Flooding | 4815.85 ft |
| action | 4815.35 ft |
| Latest Value | 4810.20 ft |
| Gauge Zero | 4806.35 ft |
Unique Local Info
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 12300 CFS or 11.12 ft
50 Â Year Peak Flood 13800 CFS or 11.49 ft
100 Year Peak Flood 15200 CFS or 11.81 ft
200 Year Peak Flood 16700 CFS or 12.15 ft
500 Year Peak Flood 18700 CFS or 12.62 ft
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.