Casselman River at Markleton, PA

River level and flood forecast · Somerset County

Normal3.3 ftas of Mon 2:30 PM

The river is 5.7 ft below flood stage (9 ft).

Flow: 1,500 cubic feet per second (USGS).

The last 7 days and the forecast

0246810TueWedThuFriSatSunMonAction 9 ftFlood 9 ftNowObserved (ft)NWS forecast

NWS forecast issued Sun, Dec 31, 7 PM. Forecasts change as rain falls and as upstream water arrives.

Flood stages

Flood stage9 ft
Action stage9 ft
Record crest (March 17, 1936)16.4 ft

Highest crests on record

  1. 16.4 ft — March 17, 1936
  2. 13.26 ft — January 19, 1996
  3. 11.63 ft — May 13, 2025

Recent crests: 11.63 ft (May 13, 2025) · 13.26 ft (January 19, 1996) · 16.4 ft (March 17, 1936)

Up and down the river, and nearby

Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (MAKP1); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.