South Branch Potomac River near Petersburg
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
CATEGORY STAGE Major Flooding 17 ft Moderate Flooding 15 ft Minor Flooding 14 ft Action 12 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
- 22.5 - Significant flooding is occurring. More than a hundred buildings in Petersburg are flooded.
- 20 - Several city blocks on the south side of Petersburg are flooded. Backwater may also flood portions of the eastern sections of the city.
- 18 - Water covers the entire runway at Grant County Airport and is in nearby structures. Hundreds of acres of lowlands are flooded. Water approaches homes on the north side of the river in Petersburg.
Gauge Info
| Coordinates | 38.9911, -79.1761 |
| RFC | MARFC |
| State | WV |
| WFO | LWX |
| County | Grant |
| Data Provider(s) | |
| US Geological Survey | USGS--Water Resources of the United States |
| USGS | 01606500 |
Gauge Location
Recent Crests
| 1. | 12.25 ft | on 03-01-2021 |
| 2. | 16.93 ft | on 04-16-2018 |
| 3. | 14.38 ft | on 05-16-2014 |
| 4. | 12.80 ft | on 05-08-2013 |
| 5. | 11.80 ft | on 05-18-2011 |
Recent Crests
| 1. | 12.25 ft | on 03-01-2021 | |
| 2. | 16.93 ft | on 04-16-2018 | |
| 3. | 14.38 ft | on 05-16-2014 | |
| 4. | 12.80 ft | on 05-08-2013 | |
| 5. | 11.80 ft | on 05-18-2011 | |
| 6. | 12.32 ft | on 04-17-2011 | |
| 7. | 13.56 ft | on 04-13-2011 | |
| 8. | 11.66 ft | on 03-11-2011 | |
| 9. | 14.86 ft | on 01-25-2010 | |
| 10. | 14.16 ft | on 03-05-2008 | |
| 11. | 14.07 ft | on 04-15-2007 | |
| 12. | 14.86 ft | on 11-19-2003 | |
| 13. | 13.96 ft | on 09-19-2003 | (P) |
| 14. | 10.81 ft | on 04-22-2002 | |
| 15. | 22.20 ft | on 09-06-1996 | |
| 16. | 11.21 ft | on 07-31-1996 | |
| 17. | 10.37 ft | on 05-28-1996 | |
| 18. | 14.29 ft | on 05-17-1996 | |
| 19. | 10.33 ft | on 05-06-1996 | |
| 20. | 10.38 ft | on 01-27-1996 | |
| 21. | 20.00 ft | on 01-19-1996 | |
| 22. | 10.80 ft | on 01-15-1995 | |
| 23. | 10.28 ft | on 04-16-1993 | |
| 24. | 21.80 ft | on 11-05-1985 | |
| 25. | 10.24 ft | on 05-31-1985 | |
| 26. | 13.10 ft | on 02-14-1984 | |
| 27. | 11.13 ft | on 04-24-1983 | |
| 28. | 13.45 ft | on 03-20-1982 | |
| 29. | 10.36 ft | on 04-30-1980 | |
| 30. | 12.21 ft | on 04-14-1980 | |
| 31. | 11.90 ft | on 02-26-1979 | |
| 32. | 11.10 ft | on 02-25-1979 | |
| 33. | 10.03 ft | on 03-26-1978 | |
| 34. | 12.00 ft | on 03-14-1978 | |
| 35. | 13.93 ft | on 01-26-1978 | |
| 36. | 11.50 ft | on 04-05-1977 | |
| 37. | 15.14 ft | on 10-09-1976 | |
| 38. | 10.85 ft | on 01-01-1976 | |
| 39. | 13.47 ft | on 10-18-1975 | |
| 40. | 12.73 ft | on 03-19-1975 | |
| 41. | 13.58 ft | on 06-02-1974 | |
| 42. | 13.13 ft | on 12-27-1973 | |
| 43. | 16.16 ft | on 10-06-1972 | |
| 44. | 11.28 ft | on 02-26-1972 | |
| 45. | 10.92 ft | on 03-15-1967 | |
| 46. | 14.74 ft | on 03-07-1967 | |
| 47. | 12.37 ft | on 03-05-1964 | |
| 48. | 14.79 ft | on 03-19-1963 | |
| 49. | 11.11 ft | on 03-22-1962 | |
| 50. | 10.16 ft | on 02-26-1961 | |
| 51. | 10.09 ft | on 04-04-1960 | |
| 52. | 11.65 ft | on 03-30-1960 | |
| 53. | 12.86 ft | on 08-18-1955 | |
| 54. | 11.02 ft | on 12-30-1954 | |
| 55. | 13.34 ft | on 10-15-1954 | |
| 56. | 11.50 ft | on 03-01-1954 | |
| 57. | 10.38 ft | on 06-13-1951 | |
| 58. | 10.95 ft | on 12-08-1950 | |
| 59. | 22.83 ft | on 06-17-1949 | |
| 60. | 10.78 ft | on 04-14-1949 | |
| 61. | 10.00 ft | on 02-14-1948 | |
| 62. | 10.12 ft | on 12-30-1942 | |
| 63. | 13.69 ft | on 05-22-1942 | |
| 64. | 13.93 ft | on 05-16-1942 | |
| 65. | 14.50 ft | on 05-31-1940 | |
| 66. | 10.85 ft | on 04-16-1939 | |
| 67. | 14.60 ft | on 02-03-1939 | |
| 68. | 10.89 ft | on 01-30-1939 | |
| 69. | 11.66 ft | on 10-24-1937 | |
| 70. | 10.30 ft | on 04-26-1937 | |
| 71. | 20.30 ft | on 03-17-1936 | |
| 72. | 10.20 ft | on 08-24-1933 | |
| 73. | 15.18 ft | on 02-04-1932 | |
| 74. | 12.21 ft | on 10-22-1929 | |
| 75. | 19.20 ft | on 01-01-1924 | |
| 76. | 21.20 ft | on 11-24-1877 |
Historic Crests
| 1. | 22.83 ft | on 06-17-1949 |
| 2. | 22.20 ft | on 09-06-1996 |
| 3. | 21.80 ft | on 11-05-1985 |
| 4. | 21.20 ft | on 11-24-1877 |
| 5. | 20.30 ft | on 03-17-1936 |
Historic Crests
| 1. | 22.83 ft | on 06-17-1949 | |
| 2. | 22.20 ft | on 09-06-1996 | |
| 3. | 21.80 ft | on 11-05-1985 | |
| 4. | 21.20 ft | on 11-24-1877 | |
| 5. | 20.30 ft | on 03-17-1936 | |
| 6. | 20.00 ft | on 01-19-1996 | |
| 7. | 19.20 ft | on 01-01-1924 | |
| 8. | 16.93 ft | on 04-16-2018 | |
| 9. | 16.16 ft | on 10-06-1972 | |
| 10. | 15.18 ft | on 02-04-1932 | |
| 11. | 15.14 ft | on 10-09-1976 | |
| 12. | 14.86 ft | on 01-25-2010 | |
| 13. | 14.86 ft | on 11-19-2003 | |
| 14. | 14.79 ft | on 03-19-1963 | |
| 15. | 14.74 ft | on 03-07-1967 | |
| 16. | 14.60 ft | on 02-03-1939 | |
| 17. | 14.50 ft | on 05-31-1940 | |
| 18. | 14.38 ft | on 05-16-2014 | |
| 19. | 14.29 ft | on 05-17-1996 | |
| 20. | 14.16 ft | on 03-05-2008 | |
| 21. | 14.07 ft | on 04-15-2007 | |
| 22. | 13.96 ft | on 09-19-2003 | (P) |
| 23. | 13.93 ft | on 05-16-1942 | |
| 24. | 13.93 ft | on 01-26-1978 | |
| 25. | 13.69 ft | on 05-22-1942 | |
| 26. | 13.58 ft | on 06-02-1974 | |
| 27. | 13.56 ft | on 04-13-2011 | |
| 28. | 13.47 ft | on 10-18-1975 | |
| 29. | 13.45 ft | on 03-20-1982 | |
| 30. | 13.34 ft | on 10-15-1954 | |
| 31. | 13.13 ft | on 12-27-1973 | |
| 32. | 13.10 ft | on 02-14-1984 | |
| 33. | 12.86 ft | on 08-18-1955 | |
| 34. | 12.80 ft | on 05-08-2013 | |
| 35. | 12.73 ft | on 03-19-1975 | |
| 36. | 12.37 ft | on 03-05-1964 | |
| 37. | 12.32 ft | on 04-17-2011 | |
| 38. | 12.25 ft | on 03-01-2021 | |
| 39. | 12.21 ft | on 04-14-1980 | |
| 40. | 12.21 ft | on 10-22-1929 | |
| 41. | 12.00 ft | on 03-14-1978 | |
| 42. | 11.90 ft | on 02-26-1979 | |
| 43. | 11.80 ft | on 05-18-2011 | |
| 44. | 11.66 ft | on 10-24-1937 | |
| 45. | 11.66 ft | on 03-11-2011 | |
| 46. | 11.65 ft | on 03-30-1960 | |
| 47. | 11.50 ft | on 04-05-1977 | |
| 48. | 11.50 ft | on 03-01-1954 | |
| 49. | 11.28 ft | on 02-26-1972 | |
| 50. | 11.21 ft | on 07-31-1996 | |
| 51. | 11.13 ft | on 04-24-1983 | |
| 52. | 11.11 ft | on 03-22-1962 | |
| 53. | 11.10 ft | on 02-25-1979 | |
| 54. | 11.02 ft | on 12-30-1954 | |
| 55. | 10.95 ft | on 12-08-1950 | |
| 56. | 10.92 ft | on 03-15-1967 | |
| 57. | 10.89 ft | on 01-30-1939 | |
| 58. | 10.85 ft | on 01-01-1976 | |
| 59. | 10.85 ft | on 04-16-1939 | |
| 60. | 10.81 ft | on 04-22-2002 | |
| 61. | 10.80 ft | on 01-15-1995 | |
| 62. | 10.78 ft | on 04-14-1949 | |
| 63. | 10.38 ft | on 06-13-1951 | |
| 64. | 10.38 ft | on 01-27-1996 | |
| 65. | 10.37 ft | on 05-28-1996 | |
| 66. | 10.36 ft | on 04-30-1980 | |
| 67. | 10.33 ft | on 05-06-1996 | |
| 68. | 10.30 ft | on 04-26-1937 | |
| 69. | 10.28 ft | on 04-16-1993 | |
| 70. | 10.24 ft | on 05-31-1985 | |
| 71. | 10.20 ft | on 08-24-1933 | |
| 72. | 10.16 ft | on 02-26-1961 | |
| 73. | 10.12 ft | on 12-30-1942 | |
| 74. | 10.09 ft | on 04-04-1960 | |
| 75. | 10.03 ft | on 03-26-1978 | |
| 76. | 10.00 ft | on 02-14-1948 |
Vertical Datum Table
| type | NAVD88 |
|---|---|
| major Flooding | 984.87 ft |
| moderate Flooding | 982.87 ft |
| minor Flooding | 981.87 ft |
| action | 979.87 ft |
| Latest Value | 972.49 ft |
| Gauge Zero | 967.87 ft |
Gauge Photos
No Images Found
Unique Local Info
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Potential River Levels Used to Estimate the Chance of Flooding and the Range of Possible River Levels |
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| 10 Day (HEFS) | 7 Day (NAEFS) | 7 Day (GEFS) |
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Note: Use the official hydrograph at the top of this web page for river levels within the next 72 hours.
Click individual graphics to enlarge.
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.
Resources
Hydrologic Resource Links
Additional Resource Links
WFO Information
Weather Forecast Office
(Baltimore/Washington) Sterling
43858 Weather Service Rd.
Sterling, VA 20166
Official Homepage