Chemung River at Chemung, Chemung County NY (CMGN6)
Gage Location: Chemung County, New YorkSite Location: Chemung County, New York
Latitude: 42.002Longitude: -76.635Elevation: 778.63 ft. MSLDrainage Area: 2506 Sq. Mi.
Minor Stage: 16 ft. Moderate Stage: 20 ft.Major Stage: 24 ft.
First Flood: 1904-03-08Last Flood: 2007-03-15 Crest: 16.63 ft.Datum change: 1930-01-10Number of Floods: 57

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Date of FloodCrest(ft)Streamflow(cfs)CategoryCode
1904-03-0817.663200MinorC1
1910-04-2516.7657000MinorC1
1913-03-2616.552500MinorC1
1914-03-291759900MinorC1
1914-05-1316.3555200MinorC1
1915-02-2516.4255700MinorC1
1916-03-2816.5356500MinorC1
1916-06-1818.268900MinorC1
1918-03-1517.9667000MinorC1
1919-05-2316.7858300MinorC1
1920-03-1317.1861200MinorC1
1929-04-2117.157400MinorC1
1935-07-0919.4586000Minornone
1936-03-1219.5787300Minornone
1936-03-1818.6176700Minornone
1939-02-2117.868000Minornone
1940-04-0119.6287800Minornone
1940-04-0417.8368300Minornone
1941-04-0616.9255300Minornone
1942-03-1017.4760700Minornone
1942-12-3119.0477400Minornone
1945-03-0416.7954100Minornone
1946-05-2823.97132000Moderatenone
1947-04-0618.0166500Minornone
1947-06-0416.149200Minornone
1948-03-2218.2669300Minornone
1950-03-2919.1280300Minornone
1950-11-2618.6674100Minornone
1951-03-3119.1981300Minornone
1952-03-1217.1754300Minornone
1953-03-2516.0946000Minornone
1955-10-1520.1389000Moderatenone
1956-03-0819.2276100Minornone
1956-04-0516.0245500Minornone
1958-04-0716.9452400Minornone
1959-01-2217.961000Minornone
1960-03-3119.0273500Minornone
1961-02-2617.3956300Minornone
1961-04-2618.2464400Minornone
1964-03-0620.4493800Moderatenone
1972-03-0317.5352000Minornone
1972-06-2331.62189000MajorF3
1975-02-261752000Minornone
1975-09-2724.1125000Majornone
1976-02-1817.0752500Minornone
1978-03-2216.2547200MinorF2
1979-03-0618.2461500MinorF2
1984-02-1518.261200MinorF2
1984-04-0617.2554100MinorF2
1994-02-2218.97-9999MinorF2
1994-03-2516.4548600MinorF2
1996-01-2019.7177800MinorF2
1996-11-0918.5267500MinorF2
2004-09-1016.0549500MinorF2
2004-09-1818.4566900MinorF2
2005-04-0317.458600MinorF2
2007-03-1516.6353300MinorF2



Codes and description

C1|Crest information during this period may be incomplete and therefore was not used in frequency calculations. Some of the floods are based on current flood stage and nearby gage information.
C2|Crest information during this period 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: 01:25 PM Jul 21, 2014