Hydrograph for Susquehanna River at Waverly/Sayre

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. River level or stage is in feet and on the left side of the hydrograph.

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



Flood stage is 11 feet. Max stage on this graph is 21.53 feet, shown near the top part of the hydrograph.

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.

Impacts

• 21.4 SEVERE FLOODING BEFORE THE LEVEES WERE BUILT IN 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.