Bighorn River at Greybull
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.No secondary data available. Transformations for Flow data and a secondary Y axis cannot be made at this time.
Traces and Thresholds Click to turn on/off display
CATEGORY STAGE 
Major Flooding 95 ft Moderate Flooding 93.5 ft Minor Flooding 92 ft Action 90 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.
Stage measured manually and reported by river observer. No automated gauge on-site.
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
- 95 - Levee around Greybull will be overtopped causing widespread flooding.
- 92 - Flood stage. Low lying flooding intensifies and becomes more widespread along southern areas of Greybull. Levee may be in danger of failing in many area with prolonged high flows. Corresponds to "7" reference point measured at staff gage under Highway 14 Bridge.
- 91.1 - Record high stage (6/8/1991). Estimated flow: 20,000 - 22,000 cfs.
Gauge Location
Recent Crests
| 1. | 87.65 ft | on 06-02-2018 |
| 2. | 89.06 ft | on 03-10-2018 |
| 3. | 91.90 ft | on 02-22-2017 |
| 4. | 93.50 ft | on 03-09-2014 |
| 5. | 90.50 ft | on 06-11-2011 |
Recent Crests
| 1. | 87.65 ft | on 06-02-2018 |
| 2. | 89.06 ft | on 03-10-2018 |
| 3. | 91.90 ft | on 02-22-2017 |
| 4. | 93.50 ft | on 03-09-2014 |
| 5. | 90.50 ft | on 06-11-2011 |
| 6. | 90.15 ft | on 06-17-2010 |
| 7. | 87.65 ft | on 05-24-2008 |
| 8. | 85.50 ft | on 05-25-2006 |
| 9. | 89.00 ft | on 05-12-2005 |
| 10. | 91.10 ft | on 06-08-1991 |
| 11. | 85.40 ft | on 06-18-1990 |
| 12. | 85.60 ft | on 06-12-1990 |
Historic Crests
| 1. | 93.50 ft | on 03-09-2014 |
| 2. | 91.90 ft | on 02-22-2017 |
| 3. | 91.10 ft | on 06-08-1991 |
| 4. | 90.50 ft | on 06-11-2011 |
| 5. | 90.15 ft | on 06-17-2010 |
Historic Crests
| 1. | 93.50 ft | on 03-09-2014 |
| 2. | 91.90 ft | on 02-22-2017 |
| 3. | 91.10 ft | on 06-08-1991 |
| 4. | 90.50 ft | on 06-11-2011 |
| 5. | 90.15 ft | on 06-17-2010 |
| 6. | 89.06 ft | on 03-10-2018 |
| 7. | 89.00 ft | on 05-12-2005 |
| 8. | 87.65 ft | on 05-24-2008 |
| 9. | 87.65 ft | on 06-02-2018 |
| 10. | 85.60 ft | on 06-12-1990 |
| 11. | 85.50 ft | on 05-25-2006 |
| 12. | 85.40 ft | on 06-18-1990 |
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.
