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| Susquehanna River at Harrisburg Crest Change |
PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
400 PM EDT TUE JUN 19 2012
...TWO FLOOD CRESTS ON THE SUSQUEHANNA RIVER AT HARRISBURG ADJUSTED ON NWS AHPS WEB SITE...
THE RECORD FLOOD STAGE ON THE SUSQUEHANNA RIVER AT HARRISBURG HAS BEEN ADJUSTED TO 33.27 FEET...UP 0.70 FEET FROM THE PREVIOUSLY IDENTIFIED RECORD CREST OF 32.57 FEET. THIS RECORD WAS SET DURING FLOODING ASSOCIATED WITH HURRICANE AGNES IN JUNE 1972.
THE PREVIOUSLY IDENTIFIED STAGE OF 32.57 FEET WAS MEASURED AT THE FORMER NAGLE STREET RIVER GAGE WHICH WAS IN OPERATION DURING THE 1972 FLOOD. WHEN THE PRESENT MARKET STREET GAGE WAS CONSTRUCTED IN
1974 AN ADJUSTMENT OF 0.70 FEET WAS APPLIED TO MATCH WHAT THE OBSERVED CREST WAS AT THIS NEW GAGE LOCATION.
IN A SIMILAR FASHION...THE CREST FROM THE FLOOD OF MARCH 19, 1936 HAS BEEN ADJUSTED FROM 29.23 FEET...ALSO OBSERVED AT THE FORMER NAGLE STREET RIVER GAGE...TO 29.46 FEET WHICH WAS OBSERVED AT THE PRESENT MARKET STREET GAGE LOCATION.
THESE TWO ADJUSTMENTS HAVE BEEN APPLIED TO OUR HISTORICAL RECORDS IN AHPS SO THAT THESE CRESTS ARE NOW REFERENCED TO THE MARKET STREET
GAGE.
CURRENT FORECAST AND RIVER GAGE INFORMATION FOR THIS GAGE CAN BE FOUND AT:
http://water.weather.gov/ahps2/hydrograph.php?wfo=ctp&gage=harp1
PLEASE DIRECT ANY QUESTIONS ON THIS MATTER TO:
CHARLES ROSS
SENIOR SERVICE HYDROLOGIST
NATIONAL WEATHER SERVICE, STATE COLLEGE, PA
CHARLES.ROSS@NOAA.GOV
(814) 231-2434
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| Susquehanna River at Harrisburg Historic Flood Crests |
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