West Branch Susquehanna River at Allenwood
Pennsylvania — Water Level & Flood Stage
Located in Union County, Pennsylvania on the West Branch Susquehanna River. Live water level data from USGS gauge 01553025, updated every 15 minutes.
Current Water Level
Gage Height
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Streamflow
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Last Reading
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Flood Stages
Major Flood
30 ft
Moderate Flood
26 ft
Minor Flood
24 ft
Action Stage
20 ft
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
What Floods at Each Level
32 ft
Many homes in Watsontown are affected by high water levels. A number of streets and roads are closed.
30 ft
Many residences on Canal Street in Watsontown flood. Some homes on Elm Street are also affected. Homes and businesses in other low lying areas are also affected.
28 ft
A number of homes in the Watsontown area are affected by high water.
26 ft
Homes in the Park Manor section on the left, or east bank of the river flood.
24 ft
The park on the left, or east bank floods. Roadway flooding occurs at a few low lying areas on both sides of the river.
22 ft
River interests are encouraged to monitor conditions for further rises. A few roads in the vacinity of Watsontown are affected by high water.
20 ft
River interests are encouraged to monitor conditions for further rises. A few roads including Routes 405 and 44 between Milton and Watsontown are affected by high water.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Sep 10, 2018 | 26.07 ft | 45,500 cfs |
| Sep 10, 2018 | 26.07 ft | 45,500 cfs |
| Aug 10, 2024 | 24.75 ft | 105,583 cfs |
| Aug 10, 2024 | 24.75 ft | 105,583 cfs |
| Apr 4, 2024 | 24.1 ft | 100,288 cfs |
About This Gauge
USGS Site
NWS LID
ALWP1
River
West Branch Susquehanna River
County
Union, PA
Coordinates
41.1081°N, 76.8900°W
Get Flood Alerts for West Branch Susquehanna River
StormCast monitors this gauge and sends a push notification to your phone when the water level crosses into a new flood category — even at 3 AM.
Frequently Asked Questions
What is the current water level of West Branch Susquehanna River at Allenwood?
The West Branch Susquehanna River at Allenwood gauge is maintained by USGS (site 01553025) and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.
What is flood stage for West Branch Susquehanna River at Allenwood?
The NWS-defined flood stage for West Branch Susquehanna River at Allenwood is 24 feet. Action stage begins at 20 feet. Moderate flooding starts at 26 feet, and major flooding at 30 feet.
How do I get alerts when West Branch Susquehanna River rises?
Download StormCast free on Google Play, go to River Gauges, and add West Branch Susquehanna River at Allenwood to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category — even when your screen is off.
Where is the West Branch Susquehanna River at Allenwood gauge located?
The gauge is located in Union County, Pennsylvania at coordinates 41.1081°N, 76.8900°W. USGS site number: 01553025. Data is provided by the U.S. Geological Survey and the National Weather Service.
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Source & Notes
Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey
- Gauge reading may be affected by ice. Forecast flows are unadjusted for ice.