Opequon Creek near Martinsburg, Berkeley County WV (MBGW2)
Gage Location: Berkeley County, West VirginiaSite Location: Berkeley County, West Virginia
Latitude: 39.424Longitude: -77.939Elevation: 354.89 ft. MSLDrainage Area: 273 Sq. Mi.
Minor Stage: 10 ft. Moderate Stage: 12.5 ft.Major Stage: 15 ft.
First Flood: 1936-03-18Last Flood: 2014-05-17 Crest: 15.21 ft.Datum change: 1947-07-23Number of Floods: 142

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Date of FloodCrest(ft)Streamflow(cfs)CategoryCode
1936-03-1817.519100MajorC1 C8 F1
1948-12-1710.272660Minornone
1948-12-3010.412700Minornone
1950-05-1910.362740Minornone
1950-11-2611.083950Minornone
1950-12-0414.129100Moderatenone
1951-04-1310.983800Minornone
1952-04-2813.097190Moderatenone
1952-09-0111.654700Minornone
1952-11-2213.126980Moderatenone
1955-08-1311.133700Minornone
1955-08-1911.924900Minornone
1959-06-0311.544300MinorC2
1961-02-2010.563110Minornone
1961-04-1310.673190Minornone
1962-03-1310.543030Minornone
1963-03-2010.773270Minornone
1964-03-0410.352910Minornone
1965-03-0510.93430Minornone
1967-03-0711.764660MinorC2
1968-03-1710.272920Minornone
1970-11-1315.8114000Majornone
1971-02-1412.245430Minornone
1971-05-3111.023630Minornone
1972-02-1410.923520Minornone
1972-06-2217.4519000Majornone
1972-06-3012.716280Minornone
1972-11-1412.55900Minornone
1972-11-2011.283900Minornone
1972-12-0913.097000Moderatenone
1972-12-2210.623220Minornone
1973-04-2810.413030Minornone
1973-10-2910.513170Minornone
1973-12-2711.013610Minornone
1974-12-0212.816680Minornone
1975-03-2011.644580Minornone
1975-06-0112.215540Minornone
1975-07-2112.836720Minornone
1975-09-2514.159460Moderatenone
1975-10-1810.433050Minornone
1976-01-0112.085300Minornone
1976-10-1014.7310900Moderatenone
1977-04-0511.183910Minornone
1978-01-2610.443060Minornone
1978-03-1512.165450Minornone
1978-03-2710.893550Minornone
1978-05-1710.272900Minornone
1978-08-0713.58060Moderatenone
1979-01-2210.613230Minornone
1979-01-2511.814860Minornone
1979-02-2612.546130Minornone
1979-07-2010.643260Minornone
1979-10-1111.584490Minornone
1980-05-2210.93560Minornone
1982-06-1412.987020Minornone
1983-03-1910.423040Minornone
1983-04-1011.033720Minornone
1983-04-2511.774790Minornone
1984-02-1514.9911600Moderatenone
1984-02-2410.443060Minornone
1984-03-2913.728500Moderatenone
1984-04-0511.274040Minornone
1984-04-1510.142790Minornone
1984-11-2911.64520Minornone
1985-02-1312.997040Minornone
1986-03-1511.434260Minornone
1987-04-0510.673290Minornone
1987-04-1712.055250Minornone
1988-05-0711.153870Minornone
1988-05-1916.2915500Majornone
1988-05-2112.165450Minornone
1990-10-1314.079270Moderatenone
1990-10-2311.644580Minornone
1990-12-3110.262890Minornone
1991-03-2411.54360Minornone
1992-03-0710.032700Minornone
1992-04-2215.2712300Majornone
1992-12-1111.594500Minornone
1993-03-0515.3812600Majornone
1993-03-2210.312930Minornone
1993-03-2411.073760Minornone
1993-03-2810.463080Minornone
1993-04-0210.423040Minornone
1993-04-1711.794810Minornone
1993-04-2210.372990Minornone
1993-11-2813.267510Moderatenone
1993-12-0512.455970Minornone
1994-02-2510.943600Minornone
1994-03-1111.874940Minornone
1994-03-2911.584480Minornone
1994-08-1810.913570Minornone
1995-01-1610.813450MinorC2
1995-10-2211.254000Minornone
1996-01-2018.7623400Majornone
1996-01-2710.863510Minornone
1996-03-2011.965090Minornone
1996-04-0211.013690Minornone
1996-08-0111.784800Minornone
1996-08-0311.624540Minornone
1996-08-1311.925030Minornone
1996-09-0715.0611700Majornone
1996-10-1912.375820Minornone
1996-11-0912.536110Minornone
1996-12-1410.913570Minornone
1997-03-0410.362980Minornone
1997-11-0812.165440Minornone
1998-01-0910.573190Minornone
1998-01-2912.085300Minornone
1998-02-0613.097170Moderatenone
1998-02-2411.474320Minornone
1998-03-1910.493110Minornone
1998-03-2114.4110100Moderatenone
2001-03-2210.583200Minornone
2003-01-0211.416370Minornone
2003-02-2310.5-9999Minornone
2003-03-2111.51-9999Minornone
2003-06-2212.826370Minornone
2003-09-2010.36-9999Minornone
2004-09-0913.216980Moderatenone
2005-03-2912.025030Minornone
2005-11-3011.74540Minornone
2006-06-2812.86330Minornone
2007-04-1610.593110Minornone
2008-04-2112.55800Minornone
2008-04-2710.663170Minornone
2008-05-1212.916530Minornone
2009-05-0510.072660Minornone
2009-12-1010.422950Minornone
2010-01-2612.155230Minornone
2010-03-1412.916530Minornone
2010-03-2910.633140Minornone
2010-12-0210.132710Minornone
2011-03-1110.232790Minornone
2011-04-1712.45640Minornone
2011-04-2810.382920Minornone
2011-05-1812.325500Minornone
2011-12-0810.233070Minornone
2012-10-3113.467320Moderatenone
2013-01-3112.045060Minornone
2013-12-0710.63340Minornone
2013-12-3010.53250Minornone
2014-05-1715.219980Majornone



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: 08:00 PM May 28, 2014