Penns Creek at Penns Creek, Union County PA (PNCP1)
Gage Location: Union County, Pennsylvania	Site Location: Snyder County, Pennsylvania
Latitude: 40.867	Longitude: -77.049	Elevation: 506.72 ft. MSL	Drainage Area: 301 Sq. Mi.
Minor Stage: 8 ft.	Moderate Stage: 10 ft.	Major Stage: 12 ft.
First Flood: 1933-08-24	Last Flood: 2011-09-08 Crest: 8.88 ft.	Datum change: 1930-02-01	Number of Floods: 73

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Year Before Datum Change	Number of Floods

Year After Datum Change	Number of Floods
1930	0
1931	0
1932	0
1933	1
1934	3
1935	0
1936	2
1937	1
1938	0
1939	0
1940	1
1941	0
1942	2
1943	0
1944	0
1945	1
1946	1
1947	0
1948	0
1949	0
1950	4
1951	1
1952	1
1953	1
1954	1
1955	1
1956	1
1957	0
1958	0
1959	1
1960	0
1961	1
1962	1
1963	0
1964	1
1965	0
1966	1
1967	0
1968	0
1969	0
1970	1
1971	0
1972	2
1973	1
1974	0
1975	2
1976	1
1977	1
1978	1
1979	5
1980	0
1981	2
1982	0
1983	1
1984	2
1985	0
1986	1
1987	0
1988	1
1989	1
1990	0
1991	0
1992	0
1993	4
1994	0
1995	1
1996	4
1997	0
1998	1
1999	1
2000	0
2001	0
2002	0
2003	2
2004	1
2005	1
2006	1
2007	1
2008	1
2009	0
2010	3
2011	3
2012	0
2013	0

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: 08:09 AM Feb 08, 2013