Rapid Creek above Water Reclamation Facility near Rapid City
Future / Actual / Minor
OWP 2.0 WWA Modal Title
01/11/2021, 10:04 PM UTC through 01/11/2021, 10:04 PM UTC
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Observed (OBS) 06/28/2025 3:15 AM MDTCATEGORY STAGE 
Major Flooding 13 ft Moderate Flooding 11 ft Minor Flooding 9 ft Action 8 ft Reliability of the Forecast:
NOTE: Graphical forecasts are not available during times of high water, forecast crest information can be found in the local WFO web page.
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 Flood Stage. Homes and property in the Green Valley area would be flooded. Several roads in Rapid Valley would be inundated.
- 11 - Moderate Flood Stage. Water approaches Anderson Road and may begin to flood homes in the Green Valley area. Other roads in Rapid Valley may be inundated.
- 10 - Water approaches Green Valley Drive near 53rd Street also known as Reservoir Road.
Gauge Info
| Coordinates | 44.0267, -103.101 |
| RFC | MBRFC |
| State | SD |
| WFO | UNR |
| County | Pennington |
| Data Provider(s) | |
| U.S. Army Corps of Engineers | USGS station 06418800 |
Gauge Location
Recent Crests
| 1. | 7.01 ft | on 05-29-2023 |
| 2. | 8.24 ft | on 07-25-2022 |
| 3. | 6.50 ft | on 05-24-2021 |
| 4. | 7.49 ft | on 06-05-2020 |
| 5. | 11.23 ft | on 05-28-2019 |
Recent Crests
| 1. | 7.01 ft | on 05-29-2023 |
| 2. | 8.24 ft | on 07-25-2022 |
| 3. | 6.50 ft | on 05-24-2021 |
| 4. | 7.49 ft | on 06-05-2020 |
| 5. | 11.23 ft | on 05-28-2019 |
| 6. | 9.30 ft | on 07-22-2018 |
| 7. | 7.15 ft | on 08-15-2017 |
Historic Crests
| 1. | 11.23 ft | on 05-28-2019 |
| 2. | 9.30 ft | on 07-22-2018 |
| 3. | 8.24 ft | on 07-25-2022 |
| 4. | 7.49 ft | on 06-05-2020 |
| 5. | 7.15 ft | on 08-15-2017 |
Historic Crests
| 1. | 11.23 ft | on 05-28-2019 |
| 2. | 9.30 ft | on 07-22-2018 |
| 3. | 8.24 ft | on 07-25-2022 |
| 4. | 7.49 ft | on 06-05-2020 |
| 5. | 7.15 ft | on 08-15-2017 |
| 6. | 7.01 ft | on 05-29-2023 |
| 7. | 6.50 ft | on 05-24-2021 |
Vertical Datum Table
| type | NAVD88 |
|---|---|
| major Flooding | 3016.24 ft |
| moderate Flooding | 3014.24 ft |
| minor Flooding | 3012.24 ft |
| action | 3011.24 ft |
| Latest Value | 3006.68 ft |
| Gauge Zero | 3003.24 ft |
Probability Information
No Images Available
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.