Conemaugh River at Seward
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.
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Observed (OBS) 03/17/2025 12:45 AM EDTOfficial Forecast (FCST) 03/16/2025 10:00 PM EDTRecord: 27.1 ftLow Threshold: 0 ftCATEGORY STAGE 
Major Flooding 16 ft Moderate Flooding 14 ft Minor Flooding 12 ft Action 8.8 ft Reliability of the Forecast:
NOTE: Forecasts are issued routinely year-round.
The above river forecast includes future rainfall/snowmelt. Forecast stages may be different if the actual rainfall/snowmelt is different than the forecast rainfall/snowmelt.
Stage may be affected by ice.
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
- 27.06 - Water reaches the flood of record...July 20, 1977.
- 26.4 - Water reaches the level of the ST. Patricks Day Flood and crest on March 18, 1936.
- 26 - Flood waters reach 4th Ave in northwest portion of Seward.
Gauge Info
| Coordinates | 40.4192, -79.0264 |
| RFC | OHRFC |
| State | PA |
| WFO | PBZ |
| County | Westmoreland |
| Data Provider(s) | |
| US Geological Survey | USGS--Water Resources of the United States |
| USGS | 03041500 |
Gauge Location
Recent Crests
| 1. | 14.34 ft | on 04-03-2024 | |
| 2. | 14.15 ft | on 09-01-2021 | (P) |
| 3. | 10.64 ft | on 02-08-2019 | |
| 4. | 14.55 ft | on 09-10-2018 | |
| 5. | 14.87 ft | on 02-16-2018 |
Recent Crests
| 1. | 14.34 ft | on 04-03-2024 | |
| 2. | 14.15 ft | on 09-01-2021 | (P) |
| 3. | 10.64 ft | on 02-08-2019 | |
| 4. | 14.55 ft | on 09-10-2018 | |
| 5. | 14.87 ft | on 02-16-2018 | |
| 6. | 9.92 ft | on 03-15-2015 | |
| 7. | 14.35 ft | on 03-14-2010 | |
| 8. | 10.30 ft | on 01-26-2010 | |
| 9. | 12.76 ft | on 12-20-2008 | (P) |
| 10. | 10.39 ft | on 03-05-2008 | |
| 11. | 11.73 ft | on 01-06-2005 | |
| 12. | 12.10 ft | on 09-18-2004 | |
| 13. | 15.10 ft | on 11-08-1997 | |
| 14. | 14.63 ft | on 05-25-1997 | |
| 15. | 20.68 ft | on 01-19-1996 | |
| 16. | 27.06 ft | on 07-20-1977 | |
| 17. | 19.20 ft | on 10-16-1954 | |
| 18. | 15.22 ft | on 03-31-1940 | |
| 19. | 26.40 ft | on 03-18-1936 |
Historic Crests
| 1. | 27.06 ft | on 07-20-1977 |
| 2. | 26.40 ft | on 03-18-1936 |
| 3. | 20.68 ft | on 01-19-1996 |
| 4. | 19.20 ft | on 10-16-1954 |
| 5. | 15.22 ft | on 03-31-1940 |
Historic Crests
| 1. | 27.06 ft | on 07-20-1977 | |
| 2. | 26.40 ft | on 03-18-1936 | |
| 3. | 20.68 ft | on 01-19-1996 | |
| 4. | 19.20 ft | on 10-16-1954 | |
| 5. | 15.22 ft | on 03-31-1940 | |
| 6. | 15.10 ft | on 11-08-1997 | |
| 7. | 14.87 ft | on 02-16-2018 | |
| 8. | 14.63 ft | on 05-25-1997 | |
| 9. | 14.55 ft | on 09-10-2018 | |
| 10. | 14.35 ft | on 03-14-2010 | |
| 11. | 14.34 ft | on 04-03-2024 | |
| 12. | 14.15 ft | on 09-01-2021 | (P) |
| 13. | 12.76 ft | on 12-20-2008 | (P) |
| 14. | 12.10 ft | on 09-18-2004 | |
| 15. | 11.73 ft | on 01-06-2005 | |
| 16. | 10.64 ft | on 02-08-2019 | |
| 17. | 10.39 ft | on 03-05-2008 | |
| 18. | 10.30 ft | on 01-26-2010 | |
| 19. | 9.92 ft | on 03-15-2015 |
Vertical Datum Table
| type | NAVD88 |
|---|---|
| major Flooding | 1091.60 ft |
| moderate Flooding | 1089.60 ft |
| minor Flooding | 1087.60 ft |
| action | 1084.40 ft |
| Latest Value | 1078.92 ft |
| Gauge Zero | 1075.60 ft |
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) | 10 Day (NAEFS) | 10 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.
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.