Rivers in Pennsylvania
Conemaugh River at Seward
Below flood stage
3.29ftStage
Observed Sat, Sep 26, 7:45 PM EDT
- Flood stage
- 12.00 ft
- Forecast crest
- 3.30 ftSun, Sep 27, 2:00 AM EDT
- Record crest
- 27.06 ft1977
Flood stages and impacts
| Category | Stage |
|---|---|
| Major flood | 16.00 ft |
| Moderate flood | 14.00 ft |
| Minor flood | 12.00 ft |
| Action | 8.80 ft |
- 27.06 ftWater reaches the flood of record...July 20, 1977.
- 26.40 ftWater reaches the level of the ST. Patricks Day Flood and crest on March 18, 1936.
- 26.00 ftFlood waters reach 4th Ave in northwest portion of Seward.
- 25.00 ftWater begins to enter the Seward Power Plant property.
- 20.70 ftWater reaches floor level in trailers just downstream from Route 56 bridge over Conemaugh River.
- 12.00 ftRoute 56 below Power Plant Road is flooded under railroad underpass.
Flood outlook
Chance of flooding, September to November
| Category | Chance |
|---|---|
| Minor flooding | 21% |
| Moderate flooding | 15% |
| Major flooding | 9% |
The three-month chances are the River Forecast Centers’ long-range flood outlook, issued September 22, 2026.
Crest history
19 crests on NOAA’s list since 1936.
| # | Date | Stage |
|---|---|---|
| 1 | July 20, 1977 | 27.06 ft |
| 2 | March 18, 1936 | 26.40 ft |
| 3 | January 19, 1996 | 20.68 ft |
| 4 | October 16, 1954 | 19.20 ft |
| 5 | March 31, 1940 | 15.22 ft |
| 6 | November 8, 1997 | 15.10 ft |
| 7 | February 16, 2018 | 14.87 ft |
| 8 | May 25, 1997 | 14.63 ft |
| 9 | September 10, 2018 | 14.55 ft |
| 10 | March 14, 2010 | 14.35 ft |
| 11 | April 3, 2024 | 14.34 ft |
| 12 | September 1, 2021 | 14.15 ft |
| 13 | December 20, 2008 | 12.76 ft |
| 14 | September 18, 2004 | 12.10 ft |
| 15 | January 6, 2005 | 11.73 ft |
| 16 | February 8, 2019 | 10.64 ft |
| 17 | March 5, 2008 | 10.39 ft |
| 18 | January 26, 2010 | 10.30 ft |
| 19 | March 15, 2015 | 9.92 ft |
Most recent crests
- April 3, 2024: 14.34 ft
- September 1, 2021: 14.15 ft
- February 8, 2019: 10.64 ft
- September 10, 2018: 14.55 ft
- February 16, 2018: 14.87 ft
- March 15, 2015: 9.92 ft
- March 14, 2010: 14.35 ft
- January 26, 2010: 10.30 ft
- December 20, 2008: 12.76 ft
- March 5, 2008: 10.39 ft
Nearby
Upstream, downstream and the gauges around this one.
What this means
Forecasts by the Ohio River Forecast Center. 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.
Sources
Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.