National Weather Service Forecast Office

Hydrograph for Waverly/Sayre - Susquehanna River

The following data is preliminary. Record information will be updated once the data has been checked.

The data shown here is a snapshot of what the river stage was during the flooding event. For the latest stages, river forecasts and other information about this site, go to the Advanced Hydrologic Prediction Service page.

What is a hydrograph? This type of graph shows how the river level changes over time at a specific location. Included with this graphic is the data used for the plot.

Times on the graphic are in Z time in a military or 24 hour time format. What is Z time?

Hydrograph for Waverly/Sayre - Susquehanna River

Key: The purple line shows the level of a Major flood. The blue line shows the level of a Moderate flood. The red line shows flood stage.

Flood stage for Waverly/Sayre - Susquehanna River is 11.0 feet.

Past Top 5 Historical Crests

21.40 ft on 03/18/1936
21.24 ft on 06/23/1972
20.35 ft on 01/20/1996
20.16 ft on 09/27/1975
19.94 ft on 12/14/1983

Impacts

21.4 - FLOOD OF RECORD...DEVASTATING SEVERE FLOODING OF THE ENTIRE VALLEY MARCH 19 1936.
19.5 - THE RIVER IS ABOUT 9 FEET OVER ITS BANKS IN THE CANNON HOLE NEIGHBORHOOD. SIX INCHES OF WATER WAS ON THE FIRST FLOOD AND SEVERAL HOMES HAD CELLARS COMPLETELY FILED IN MARCH 1979.
18.5 - WATER REACHES THE FIRST FLOOD OF HOUSES IN THE CANNON HOLE NEIGHBORHOOD.
16.0 - THE ACCESS ROAD TO THE CANNON HOLE NEIGHBORHOOD BECOMES IMPASSIBLE DUE TO FLOOD WATERS AND MUD.
14.5 - TWO TO THREE FEET OF WATER IN THE BASEMENTS OF HOMES IN THE CANNON HOLE NEIGHBORHOOD. THE SUSQUEHANNA ON THE NEW YORK SIDE IS 4 TO 5 FEET OVER THE BANK.
11.0 - MINOR FLOODING BEGINS WITH MAINLY FIELD AND SOME BASEMENT FLOODING IN THE CANNON HOLE NEIGHBORHOOD ON THE NEW YORK SIDE OF THE SUSQUEHANNA.

The term Minor Flooding is used to indicate minimal or no property damage. However, some public inconvenience is possible.

The term Moderate Flooding is used to indicate the inundation of secondary roads. Transfer to higher elevation may be necessary to save property. Some evacuation may be required.

The term Major Flooding is used to indicate extensive inundation and property damage, usually characterized by the evacuation of people and livestock, and the closure of both primary and secondary roads.

For the data used to create this hydrograph, click here.

Page maintainer - Ron Murphy


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