Tunkhannock Creek near Tunkhannock, Wyoming County PA (TNKP1)
Gage Location: Wyoming County, Pennsylvania	Site Location: Wyoming County, Pennsylvania
Latitude: 41.5583	Longitude: -75.895	Elevation: 610.1 ft. MSL	Drainage Area: 383 Sq. Mi.
Minor Stage: 11 ft.	Moderate Stage: 14 ft.	Major Stage: 17 ft.
First Flood: 1917-10-30	Last Flood: 2011-09-28 Crest: 13.43 ft.	Datum change: 1938-08-10	Number of Floods: 52

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Date of Flood Crest(ft) Streamflow(cfs) Category Code 1917-10-30 11.7 20900 Minor C1 1922-06-18 12 22200 Minor C1 1924-09-30 13.1 27400 Minor C1 1925-02-11 11.3 19200 Minor C1 1926-10-06 11.2 18800 Minor C1 1927-10-19 11.05 18000 Minor C1 1933-08-24 11.1 18400 Minor C1 1936-03-18 11.36 19600 Minor C1 1940-03-31 13.5 29400 Minor none 1942-05-23 12.45 24000 Minor none 1942-12-30 11.95 22200 Minor none 1946-05-28 11.6 20400 Minor none 1947-04-05 13.96 21200 Minor none 1950-11-26 13.19 28000 Minor none 1950-12-04 13.21 28000 Minor none 1952-03-11 11.7 20900 Minor none 1955-10-16 12.95 20100 Minor none 1959-11-28 12.08 17400 Minor none 1960-04-04 11.58 15800 Minor none 1964-03-10 14.26 24700 Moderate none 1967-08-28 11.45 15500 Minor none 1970-04-02 11.77 16400 Minor none 1972-06-23 11.26 15100 Minor none 1972-11-09 12.22 18600 Minor none 1975-02-24 12.1 18100 Minor none 1975-09-25 11.68 16600 Minor none 1976-10-09 13.45 21800 Minor none 1976-10-21 11.16 14800 Minor none 1978-01-09 11.17 14700 Minor none 1978-01-26 11.47 15500 Minor none 1981-02-11 12.44 18500 Minor none 1983-04-16 13.7 22700 Minor none 1983-12-14 12.4 18400 Minor none 1985-09-27 13.89 23400 Minor none 1986-03-15 15.77 26500 Moderate none 1993-03-29 11.12 14600 Minor none 1993-04-11 13.6 21800 Minor none 1995-10-21 11.18 13200 Minor none 1996-01-19 19.97 30300 Major none 1996-11-09 11.94 15100 Minor none 2004-09-18 19.69 36500 Major none 2005-01-14 13.2 18400 Minor none 2005-03-29 12.06 15500 Minor none 2005-04-03 14.44 22000 Moderate none 2006-01-18 11.31 13600 Minor none 2006-06-28 20.9 39500 Major none 2006-11-17 12.93 17700 Minor none 2008-03-05 13.2 18400 Minor none 2011-03-11 13.06 18000 Minor none 2011-04-28 11.6 14300 Minor none 2011-09-08 13.72 20100 Minor none 2011-09-28 13.43 19000 Minor none

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: 01:02 PM Jun 12, 2013