National Weather Service Forecast Office

Hydrograph for Cortland - Tioughnioga 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?

NOTE: The white arrow on the hydrograph below shows where the river gage was stuck. The gage was unstuck early on the morning of April 6^th. The bad data was removed.

Hydrograph for Cortland - Tioughnioga River

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 Cortland - Tioughnioga River is 8.0 feet.

Past Top 5 Historical Crests

13.82 ft on 04/05/1950
13.56 ft on 12/31/1942
13.54 ft on 04/05/1956
13.52 ft on 03/31/1960
13.33 ft on 04/09/1940

Impacts

8.0 MINOR FLOODING OF KELLOGG ROAD WHICH IS SOUTH OF THE CITY OF CORTLAND.

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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