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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
- Not all sites have reports available for every water year.
USGS Water-Year Summary 2024
03055500 TYGART LAKE NEAR GRAFTON, WV
LOCATION - Lat 39°18'46", long 80°02'02" referenced to North American Datum of 1927, Taylor County, WV, Hydrologic Unit 05020001, at dam on Tygart Valley River, 2.2 mi upstream from Three Fork Creek, 2.4 mi upstream from Grafton, and at mile 150.9.
DRAINAGE AREA - 1,182 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 2005 to September 2012 (annual maximum and minimum water-surface elevation), October 2012 to current year (daily mean water-surface elevation).
GAGE - Water-stage recorder with satellite telemeter. Datum of gage is at NAVD 88. Prior to Feb. 17, 2010, gage was at NGVD 29. (approximately -0.55 ft below NAVD 88, levels by Corps of Engineers).
EXTREMES FOR PERIOD OF RECORD - Maximum elevation, 1,141.30 ft, Mar. 16, 2015; minimum, 1,030.28 ft, Feb. 8, 2009.
CLIMATOLOGICAL RECORDS
PERIOD OF RECORD - April 2016 to current year.
INSTRUMENTATION - Heated 12" tipping bucket rain gage.
EXTREMES FOR PERIOD OF RECORD - Maximum daily precipitation, 2.50 in., Sept. 8, 2018; minimum precipitation, 0.00 in., on many days.
