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Local Info
Critical Stages
ActionFloodModerate FloodMajor Flood
Potomac River - Gauge WLLM2
Williamsport, MD
Lat: 39.61N, Lon: 77.83W
 
Latest Observation
Updated: 6:00 AM EDT 10/8/25
Stage:1.81 ft
Flow:-999 kcfs*
* Thousand cubic feet per second
Forecast
hydrograph
Flood Impacts
Historical Crests

Data provided by NOAA Advanced Hydrologic Prediction Service

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