Juniata River at Huntingdon, Huntingdon County PA (HUJP1)
Gage Location: Huntingdon County, Pennsylvania	Site Location: Huntingdon County, Pennsylvania
Latitude: 40.485	Longitude: -78.019	Elevation: 599.69 ft. MSL	Drainage Area: 816 Sq. Mi.
Minor Stage: 12 ft.	Moderate Stage: 13 ft.	Major Stage: 15 ft.
First Flood: 1889-06-01	Last Flood: 2010-12-01 Crest: 12.36 ft.	Datum change: 1941-10-01	Number of Floods: 13

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Date of Flood Crest(ft) Streamflow(cfs) Category Code 1889-06-01 22.5 -9999 Major C1 1936-03-18 21.87 81000 Major C1 1950-11-25 15.29 34200 Major none 1972-06-23 20.03 57000 Major none 1979-03-05 12.07 20800 Minor none 1984-02-15 13.51 26400 Moderate none 1993-04-17 12.11 21400 Minor none 1993-11-28 13.07 24700 Moderate none 1996-01-19 15.95 36500 Major none 1997-11-08 14.23 29000 Moderate none 2004-09-09 13.45 26100 Moderate none 2004-09-18 17.89 45700 Major none 2010-12-01 12.36 22200 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