Rivanna River at Palmyra, Fluvanna County VA (PYAV2)
Gage Location: Fluvanna County, VirginiaSite Location: Fluvanna County, Virginia
Latitude: 37.858Longitude: -78.266Elevation: 210.39 ft. MSLDrainage Area: 663 Sq. Mi.
Minor Stage: 17 ft. Moderate Stage: 25 ft.Major Stage: 32 ft.
First Flood: 1934-09-17Last Flood: 2014-05-16 Crest: 24.72 ft.Datum change: 1933-10-01Number of Floods: 115

Click on table headers to sort
Date of FloodCrest(ft)Streamflow(cfs)CategoryCode
1934-09-1724.7524000MinorG1
1934-12-0120.613200MinorG1
1935-01-2320.1712800MinorG1
1935-09-0626.2729000ModerateG1
1936-01-0320.5413900MinorG1
1936-01-1919.5312400MinorG1
1936-03-1829.2639900ModerateG1
1936-10-1818.1910600MinorG1
1937-01-2119.6512500MinorG1
1937-02-2217.059330MinorG1
1937-04-2633.3556700MajorG1
1937-10-2023.4520000MinorG1
1940-08-1721.7816300MinorG1
1942-08-0918.5911400MinorG1
1942-10-1636.578000MajorG1
1944-09-1930.539600ModerateG1
1948-04-0121.5416800Minornone
1948-08-0422.919800Minornone
1948-12-0426.7828800Moderatenone
1948-12-3118.2710700Minornone
1949-03-2319.2511900Minornone
1949-08-1521.717200Minornone
1950-12-0521.5517000Minornone
1951-06-1021.1315900Minornone
1952-02-0417.3811000Minornone
1952-03-1217.811400Minornone
1955-08-192934800Moderatenone
1959-10-0120.4115700Minornone
1960-02-1918.2712700Minornone
1961-04-1317.8312100Minornone
1961-10-2124.2722900Minornone
1962-03-1317.912200Minornone
1963-03-1218.6313100Minornone
1965-02-0821.7718000Minornone
1967-03-0818.4112800Minornone
1969-06-0818.6513000Minornone
1969-08-2039.8586000Majornone
1971-05-3123.3921000Minornone
1971-10-2518.4612600Minornone
1972-02-1418.7612900Minornone
1972-06-2237.3473400Majornone
1972-10-0631.0745800Moderatenone
1972-11-1517.3211300Minornone
1973-02-0221.0716000Minornone
1973-12-2120.3214900Minornone
1975-03-2026.3828100Moderatenone
1975-09-2623.4620300Minornone
1976-01-0118.9913200Minornone
1976-01-2817.5811500Minornone
1976-10-1022.4118100Minornone
1978-01-0920.0714700Minornone
1978-01-2623.5120800Minornone
1978-05-1418.6312800Minornone
1979-01-2517.2911200Minornone
1979-02-2623.5821000Minornone
1979-06-0322.6418800Minornone
1979-09-0625.525800Moderatenone
1979-09-2224.4523100Minornone
1980-04-0917.1911000Minornone
1982-02-0318.2712300Minornone
1982-05-2818.3112300Minornone
1982-06-1419.5313800Minornone
1983-04-0322.0217300Minornone
1983-04-1121.8717000Minornone
1983-04-2420.213800Minornone
1984-02-1524.4222800Minornone
1984-03-2923.7621200Minornone
1984-04-0518.111200Minornone
1985-08-1919.5712900Minornone
1985-11-0526.5331800Moderatenone
1987-04-1725.5928700Moderatenone
1987-09-0926.6532200Moderatenone
1989-05-0626.3331100Moderatenone
1989-07-1619.9214600Minornone
1990-05-2718.7312700Minornone
1990-10-2421.9418500Minornone
1991-01-1219.7514300Minornone
1992-04-2223.7723200Minornone
1992-11-2421.1416800Minornone
1992-12-1119.3713700Minornone
1993-03-0526.2530800Moderatenone
1993-04-1717.1110500Minornone
1993-11-2822.4819800Minornone
1994-02-2418.312000Minornone
1994-03-2820.9316400Minornone
1995-01-1619.2413500Minornone
1995-06-2717.5811100Minornone
1995-06-2919.3613700Minornone
1996-01-2025.0327000Moderatenone
1996-01-2717.9311600Minornone
1996-09-0731.5450900Moderatenone
1998-01-2921.9718500Minornone
1998-02-0518.4512200Minornone
1998-02-1823.9623800Minornone
1998-03-2118.7512700Minornone
1998-05-0821.2817100Minornone
1999-09-3023.3122700Minornone
2003-02-2323.7923275Minornone
2003-03-2120.6815970Minornone
2003-07-0321.3217687Minornone
2003-09-1925.9130000Moderatenone
2003-12-1119.5914400Minornone
2004-09-0917.9812200Minornone
2004-09-2918.3912600Minornone
2005-01-1420.7816800Minornone
2005-11-3019.5314300Minornone
2006-10-0719.0913500Minornone
2010-01-2623.5223300Minornone
2011-03-1117.7920400Minornone
2011-04-1719.7114600Minornone
2011-05-1819.1923300Minornone
2011-12-0819.4614100Minornone
2013-01-3119.3313900Minornone
2014-05-0121.518400Minornone
2014-05-1624.7226500Minornone



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