Loyalsock Creek at Loyalsockville, Lycoming County PA (LOYP1)
Gage Location: Lycoming County, PennsylvaniaSite Location: Lycoming County, Pennsylvania
Latitude: 41.325Longitude: -76.913Elevation: 585.63 ft. MSLDrainage Area: 435 Sq. Mi.
Minor Stage: 12 ft. Moderate Stage: 13 ft.Major Stage: 14 ft.
First Flood: 1926-11-16Last Flood: 2011-09-07 Crest: 19.78 ft.Datum change: 1926-09-17Number of Floods: 15

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Date of FloodCrest(ft)Streamflow(cfs)CategoryCode
1926-11-1612.330500Minornone
1933-08-2412.229800Minornone
1946-05-2812.229800Minornone
1950-11-2612.3230500Minornone
1972-06-2314.7447900Majornone
1975-09-2614.546000Majornone
1982-02-0112.45-9999Minornone
1983-12-1412.1829700Minornone
1988-08-2912.4128600Minornone
1996-01-1917.9355800Majornone
1996-01-2712.1820000Minornone
2004-09-1815.2440400Majornone
2010-01-2514.234900Majornone
2011-03-1112.3425900Minornone
2011-09-0719.7869100Majornone



Codes and description

C1|Crest information looks unreliable and incomplete and not used in frequency calculations. Some of the floods are based on current flood stage and nearby gage information.
C2|Crest information looks reliable despite potential problems. This data was used in frequency calculations.
C3|Crest height estimated by the USGS.
C4|Crest height is from the National Weather Service.
C5|Crest height affected by backwater.
C6|Crest occurred at a previous flood stage that is lower than the current flood stage. The crests below the new flood stage are not used in flood frequency calculations.
C7|Crest from USGS yearly peak and/or date is different than the crest we provide. In many cases MARFC uses crest based on backwater or ice effects.
C8|Crest month or day of occurrence has been estimated by The Middle Atlantic River Forecast Center usually based on nearby gage information.
C9|Crest date (day) in the month is unknown.
F1|Flow is an estimate.
F2|Flow affected by regulation or diversion and in some cases to an unknown degree.
F3|Flow effected by snow-melt, ice jam or debris jam break up.
F4|Flow affected by dam failure.
F5|Flow - All or part of the record affected by urbanization, mining, agricultural changes, channelization or other factors.
G1|Gage height at a different site and/or datum.
G2|Gage is not an official USGS gage with crests provided by the NWS. Crest information looks unreliable and incomplete and not used in flood frequency calculations.
G3|Gage datum changed during this year.
none,No code; Good Data

Updated: 07:20 AM Nov 12, 2013