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 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