West Branch Susquehanna River at Williamsport, Lycoming County PA (WILP1)
Gage Location: Lycoming County, PennsylvaniaSite Location: Lycoming County, Pennsylvania
Latitude: 41.236Longitude: -76.907Elevation: 494.98 ft. MSLDrainage Area: 5682 Sq. Mi.
Minor Stage: 20 ft. Moderate Stage: 21 ft.Major Stage: 30 ft.
First Flood: 1865-03-17Last Flood: 2011-04-28 Crest: 20.27 ft.Datum change: 1928-10-01Number of Floods: 39

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MINOR FLOODS
Date of FloodCrest(ft)
1901-12-1520.7
1913-03-2720.4
1916-03-2920.5
1919-05-2220.9
1920-03-1320.4
1948-04-1520.63
1951-03-3120.15
1956-03-0920.37
1960-04-0120.92
1993-04-0120.52
2010-01-2620.12
2011-04-2820.27
MODERATE FLOODS
Date of FloodCrest(ft)
1865-03-1727.5
1898-03-2421
1902-03-0121.7
1904-03-0421
1909-05-0121
1916-06-1721
1918-02-2121.4
1923-03-0521.6
1936-03-1223.6
1940-04-0122.73
1942-12-3123.03
1946-05-2829.63
1950-11-2628.11
1959-01-2222.99
1961-02-2621.68
1964-03-1127.25
1975-09-2624.7
1979-03-0622.73
1984-02-1525.59
1996-01-2026.71
2004-09-1827.79
2010-12-0223.25
MAJOR FLOODS
Date of FloodCrest(ft)
1889-06-0132.4
1894-05-2131
1936-03-1833.57
1972-06-2334.75
MISSING
Date of FloodCrest(ft)



Categorical Floods by Month
MonthMinor
After
Datum
Minor
Total
Moderate
After
Datum
Moderate
Total
Major
After
Datum
Major
Total
Missing
After
Datum
Missing
Total
January11220000
February00230000
March36381100
April44110000
May01120100
June00011200
July00000000
August00000000
September00220000
October00000000
November00110000
December01220000


Categorical Floods by Season
SeasonMinorModerateMajorMissing
Fall0300
Winter2700
Spring111120
Summer0120