North Fork Shenandoah River near Strasburg, Shenandoah County VA (STGV2)
Gage Location: Warren County, VirginiaSite Location: Shenandoah County, Virginia
Latitude: 38.977Longitude: -78.336Elevation: 494.03 ft. MSLDrainage Area: 770 Sq. Mi.
Minor Stage: 17 ft. Moderate Stage: 20 ft.Major Stage: 25 ft.
First Flood: 1934-12-02Last Flood: 2011-05-18 Crest: 19.07 ft.Datum change: 1930-09-21Number of Floods: 22

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Date of FloodCrest(ft)Streamflow(cfs)CategoryCode
1934-12-0218.9920500Minornone
1936-03-1830.2189000Majornone
1937-04-2620.9324900Moderatenone
1942-05-2319.2821400Minornone
1942-10-1631.2100000Majornone
1945-09-1920.424000Moderatenone
1954-10-1618.2519300Minornone
1955-08-1823.5536100Moderatenone
1972-06-2220.8825100Moderatenone
1972-10-0623.4835700Moderatenone
1973-12-2717.3318000Minornone
1975-03-2021.2226100Moderatenone
1976-10-1019.3321800Minornone
1978-01-2717.2117800Minornone
1985-11-0527.3762600Majornone
1987-04-1718.2719800Minornone
1993-03-0519.0621300Minornone
1996-01-2027.9667600Majornone
1996-09-0732.27114000Majornone
2003-09-2019.2721800Minornone
2011-04-1718.3319900Minornone
2011-05-1819.0721300Minornone



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