West Branch Susquehanna River at Lock Haven, PA
River level and flood forecast · Clinton County
The river is 12.6 ft below flood stage (21 ft).
Forecast to rise to 9.3 ft Tue 2 PM, below the 21 ft flood stage.
Flow: 2,070 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Mon, Oct 12, 2:51 PM. Forecasts change as rain falls and as upstream water arrives.
Flood stages
| Major flood stage | 25 ft |
| Moderate flood stage | 23 ft |
| Flood stage | 21 ft |
| Action stage | 17 ft |
| Record crest (September 18, 2004) | 28.13 ft |
What floods at each level
From the National Weather Service, highest first.
- 39.5 ftApproximate level of the FEMA 0.2% Annual Chance Flood level (500-year flood).
- 35.5 ftFlood waters begin to reach teh Woodward Avenue Bridge.
- 34.5 ftFlood waters begin to reach the North Jay Street Bridge.
- 33.5 ftApproximate level of the FEMA 1% Annual Chance Flood level (100-year flood).
- 32.5 ftFlood of record from 1936. Flood waters begin to reach teh railroad bridge crossing the river near Farrandsville.
- 31 ftApproximate level of the FEMA 2% Annual Chance Flood level (50-year flood).
- 30.5 ftFlood waters begin to reach the first Island Road Bridge.
- 27 ftApproximately 75 percent of Lock Haven would be inundated if the levee system was not in place.
- 25 ftNumerous homes and businesses would be flooded if the levee system was not in place. Approximate level of the FEMA 10% Annual Chance Flood level (10-year flood).
- 23 ftConsiderable flooding would occur if the levee system was not in place.
- 21 ftThe right, or south bank overflows in areas not protected by the levee system.
- 19 ftRiver interests should monitor conditions for continued rising water levels.
- 17 ftRiver interests should monitor conditions for continued rising water levels. Historically, at these levels, homes downstream along the antes creek are affected.
Highest crests on record
- 28.13 ft — September 18, 2004
- 25.86000061035156 ft — January 20, 1996
- 24.1 ft — December 2, 2010
- 21.93 ft — September 11, 2018
- 18.3 ft — November 28, 1993
Recent crests: 21.93 ft (September 11, 2018) · 24.1 ft (December 2, 2010) · 28.13 ft (September 18, 2004) · 25.86000061035156 ft (January 20, 1996) · 17.82 ft (March 25, 1994)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (LHVP1); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.