West Branch Susquehanna River at Watsontown, Northumberland County PA (WATP1)
Gage Location: Northumberland County, PennsylvaniaSite Location: Northumberland County, Pennsylvania
Latitude: 41.082Longitude: -76.864Elevation: 440 ft. MSLDrainage Area: 65473 Sq. Mi.
Minor Stage: 23 ft. Moderate Stage: 25 ft.Major Stage: 29 ft.
First Flood: 1936-03-12Last Flood: 2011-09-08 Crest: 26.7 ft.Datum change: 1936-01-01Number of Floods: 12

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Height Above Flood Stage for Entire Period of Record
Height Above FSTotal OccurencePercent of Crest OccurrenceCumulative Total Flood OccurrencePercent of Floods above Listed Value
24 ft to 25 ft433.324 ft or above 12100.0
25 ft to 26 ft00.025 ft or above 866.7
26 ft to 27 ft18.326 ft or above 866.7
27 ft to 28 ft18.327 ft or above 758.3
28 ft to 29 ft325.028 ft or above 650.0
29 ft to 30 ft00.029 ft or above 325.0
30 ft to 31 ft18.330 ft or above 325.0
31 ft to 32 ft00.031 ft or above 216.7
32 ft to 33 ft00.032 ft or above 216.7
33 ft to 34 ft00.033 ft or above 216.7
34 ft to 35 ft00.034 ft or above 216.7
35 ft to 36 ft00.035 ft or above 216.7
36 ft to 37 ft18.336 ft or above 216.7
37 ft to 38 ft18.337 ft or above 18.3
Height Above Flood Stage After Datum Change
Height Above FSTotal OccurencePercent of Crest OccurrenceCumulative Total Flood OccurrencePercent of Floods above Listed Value
23 ft to 24 ft00.023 ft or above 12100.0
24 ft to 25 ft433.324 ft or above 12100.0
25 ft to 26 ft00.025 ft or above 866.7
26 ft to 27 ft18.326 ft or above 866.7
27 ft to 28 ft18.327 ft or above 758.3
28 ft to 29 ft325.028 ft or above 650.0
29 ft to 30 ft00.029 ft or above 325.0
30 ft to 31 ft18.330 ft or above 325.0
31 ft to 32 ft00.031 ft or above 216.7
32 ft to 33 ft00.032 ft or above 216.7
33 ft to 34 ft00.033 ft or above 216.7
34 ft to 35 ft00.034 ft or above 216.7
35 ft to 36 ft00.035 ft or above 216.7
36 ft to 37 ft18.336 ft or above 216.7
37 ft to 38 ft18.337 ft or above 18.3