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West Branch Susquehanna River at Jersey Shore

Highest listed crest 38.20 ftFlood stage 26.0 ft11 crests since 1889

The West Branch Susquehanna River at Jersey Shore crested at major flood stage 7 times among the 11 crests the National Weather Service lists from 1889 to 2004. The highest, 38.20 ft on June 23, 1972, was major flooding, 12.20 feet above flood stage. 5 other gauges on the West Branch Susquehanna River crested above flood stage within a week of it, 4 at their own highest listed crest.

The gauge

Highest listed crest
38.20 ft
June 23, 1972
Flood stage
26.0 ft
Major flooding from 29.0 ft
Crests at major
7
27th of 170 gauges in Pennsylvania
Most recent flood crest
September 18, 2004
30.74 ft, major flooding
Location
Lycoming County
Near Williamsport (11.5 mi)

Flood stages

The thresholds the National Weather Service uses for this gauge today, and how many listed crests reached each.

Flood categories, West Branch Susquehanna River at Jersey Shore
Action stage23.02Apr 2, 1993The level at which the NWS or its partners begin to take action
Flood stage (minor)26.02Feb 15, 1984Minimal or no property damage, but possibly some public threat
Moderate flood stage28.00—Some inundation of structures and roads near the stream
Major flood stage29.07Sep 18, 2004Extensive inundation of structures and roads

Every listed crest

11 crests from 1889 to 2004. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the West Branch Susquehanna River at Jersey Shore, 1889 to 2004 2025303540ft Flood stage 26.0 ftMajor 29.0 ft Jun 1, 1889: 37.30 ft, major floodingMar 19, 1936: 37.90 ft, major floodingNov 25, 1950: 32.80 ft, major floodingMar 11, 1964: 30.60 ft, major floodingJun 23, 1972: 38.20 ft, major floodingSep 26, 1975: 27.60 ft, minor floodingMar 6, 1979: 25.50 ft, action stageFeb 15, 1984: 27.00 ft, minor floodingApr 2, 1993: 23.00 ft, action stageJan 20, 1996: 29.50 ft, major flooding; 172,300 cubic feet per secondSep 18, 2004: 30.74 ft, major flooding Highest, 38.20 ft, Jun 23, 1972 190019201940196019802000

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, West Branch Susquehanna River at Jersey Shore 1880s: 1 1890s: 0 1900s: 0 1910s: 0 1920s: 0 1930s: 1 1940s: 0 1950s: 1 1960s: 1 1970s: 2 2 1980s: 1 1990s: 1 2000s: 1 1880s1890s1900s1910s1920s1930s1940s1950s1960s1970s1980s1990s2000s
  1. These are the crests the local National Weather Service office lists for the gauge: the highest on record and recent crests. Lesser floods between them may be missing, so counts by decade are a floor.
  2. Categories use today's flood stages. Levees, dams and channel changes since a crest can make old and new stages not directly comparable.

Highest crests

Highest listed crests, West Branch Susquehanna River at Jersey Shore
1Jun 23, 197238.20+12.20Major—
2Mar 19, 193637.90+11.90Major—
3Jun 1, 188937.30+11.30Major—
4Nov 25, 195032.80+6.80Major—
5Sep 18, 200430.74+4.74Major—
6Mar 11, 196430.60+4.60Major—
7Jan 20, 199629.50+3.50Major172,300
8Sep 26, 197527.60+1.60Minor—
9Feb 15, 198427.00+1.00Minor—
10Mar 6, 197925.50−0.50Action—
11Apr 2, 199323.00−3.00Action—

The worst floods along the West Branch Susquehanna River

For this gauge's highest crests, the other gauges on the West Branch Susquehanna River that crested above flood stage within a week.

June 23, 1972: 38.20 ft here, major flooding

  • MuncyPA · Jun 23, 1972 · 37.45 ft · Major · its highest
  • WilliamsportPA · Jun 23, 1972 · 34.75 ft · Major · its highest
  • West MiltonPA · Jun 24, 1972 · 34.55 ft · Major · its highest
  • LewisburgPA · Jun 24, 1972 · 34.23 ft · Major · its highest
  • RenovoPA · Jun 23, 1972 · 26.56 ft · Major

March 19, 1936: 37.90 ft here, major flooding

  • MuncyPA · Mar 18, 1936 · 35.90 ft · Major
  • West MiltonPA · Mar 18, 1936 · 34.07 ft · Major
  • WilliamsportPA · Mar 18, 1936 · 33.57 ft · Major
  • RenovoPA · Mar 18, 1936 · 29.39 ft · Major · its highest

June 1, 1889: 37.30 ft here, major flooding

Gauges on the West Branch Susquehanna River

Flood gauges sharing the river's name, linked within 80 miles of one another.

Flood gauges on the West Branch Susquehanna River
AllenwoodPA24.026.07 ft, Sep 11, 20180
Jersey Shore this gaugePA26.038.20 ft, Jun 23, 19727
LewisburgPA18.034.23 ft, Jun 24, 19722
Lock HavenPA21.028.13 ft, Sep 18, 20042
RenovoPA16.029.39 ft, Mar 18, 19364
West MiltonPA19.034.55 ft, Jun 24, 197212
WilliamsportPA20.034.75 ft, Jun 23, 19724
MuncyPA20.037.45 ft, Jun 23, 19728

Other gauges in Lycoming County

Flood gauges in Lycoming County
Loyalsockville12.019.78 ft, Sep 8, 20115
Muncy Creek15.023.06 ft, Sep 7, 20110
Cedar Run12.016.00 ft, Jun 23, 19721
Williamsport20.034.75 ft, Jun 23, 19724
Muncy20.037.45 ft, Jun 23, 19728

Lycoming County: every hazard · River floods across the country · Pennsylvania

NOAA National Water Prediction Service, gauge JRSP1, retrieved October 30, 2026. Stages in feet on the gauge's own datum, not elevation. Crests are as the National Weather Service lists them; preliminary values may be revised.