Tioughnioga River at Cortland
Flood levels
Official flood levels at this gauge: action stage begins at 7.0 ft; minor flooding begins at 8.0 ft; moderate flooding begins at 10.0 ft; major flooding begins at 12.5 ft.
| Action stage | 7.0 ft |
|---|---|
| Minor flooding | 8.0 ft |
| Moderate flooding | 10.0 ft |
| Major flooding | 12.5 ft |
Highest recorded crests
- 14.1 ft on Apr 3, 2005 (historic crest)
- 13.8 ft on Apr 5, 1950 (historic crest)
- 13.6 ft on Dec 31, 1942 (historic crest)
- 13.5 ft on Apr 5, 1956 (historic crest)
What the water does
National Weather Service impact statements for this gauge, in the Weather Service's own words.
| 7.0 ft | The river spills it/s banks into the low lying flood plain. No impact occurs at this stage. |
|---|---|
| 8.0 ft | Minor flood stage. Flooding leads to some closures along Kellogg Road to the south of Cortland. |
| 10.0 ft | Moderate flood stage. Some flooding begins to affect roads and basements in the Village of Marathon and the Yaman Park area of Cortland. |
| 11.5 ft | Widespread, serious flooding occurs in cellars and up to the first floor of homes and businesses in Marathon. Cellar flooding occurs on the east side of Cortland near Yaman Park. Kellogg Road is covered by water 3-6 feet deep in spots. |
| 12.5 ft | Major flood stage. Severe flooding occurs in the Village of Marathon with 4-6 feet of water covering most of the streets in town. Many homes and businesses are inundated to the first floor. Widespread basement flooding occurs in the City of Cortland along River Street and the Yaman Park area. |
| 13.0 ft | Severe flooding occurs in areas from the City of Cortland to Marathon with 3-4 feet of water covering many city streets in Cortland. Residents in the Kennedy Parkway area are cutoff by floodwaters. This is the level of the January 1996 rain and snow melt flood. |
| 14.1 ft | Record flood of April 2005. Widespread inundation and major flood damage occurred along the river from Cortland to Marathon. |
Forecast office: NWS Johnson City · River Forecast Center: Middle Atlantic River Forecast Center.
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Nearby stations and gauges
- Grout Brook near Fairhaven NWS gauge · 11.0 mi
- Otselic River at Cincinnatus NWS gauge · 13.9 mi
- Owasco Lake at Moravia Inlet NWS gauge · 16.0 mi
- Fall Creek at Ithaca NWS gauge · 19.0 mi
- Tioughnioga River at Lisle NWS gauge · 19.3 mi
- Salmon Creek near Ludlowville NWS gauge · 19.4 mi