Major Flood
370 ft
Current Water Level
Gage Height
Loading...
Streamflow
Loading...
Last Reading
Loading...
FLOOD STAGES
Know the flood categories.
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
Moderate Flood
368 ft
Minor Flood
366 ft
Action Stage
365 ft
What Floods at Each Level
370 ft
Major flooding begins.
368 ft
Moderate flooding begins.
366 ft
Minor flood stage. Trails at Onondaga Lake Park are flooded. Marina usage is also impacted. Areas downstream of the lake, in the vicinity of Hayes Road, may be affected by flood waters.
365 ft
Action stage. Water begins to spill onto lawns in Onondaga Lake Park.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
Loading chart data...
Historic Crests
| Date | Stage | Flow |
|---|---|---|
| May 10, 2025 | 366.01 ft | — |
About This Gauge
USGS Site
NWS LID
LVRN6
River
Onondaga Lake
County
Onondaga, NY
Coordinates
43.1003°N, 76.2094°W
Get Flood Alerts for Onondaga Lake
StormCast monitors this gauge and sends a push notification to your phone when the water level crosses into a new flood category — even at 3 AM.
Frequently Asked Questions
What is the current water level of Onondaga Lake at Liverpool?
The Onondaga Lake at Liverpool gauge is maintained by USGS (site 04240495) and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.
What is flood stage for Onondaga Lake at Liverpool?
The NWS-defined flood stage for Onondaga Lake at Liverpool is 366 feet. Action stage begins at 365 feet. Moderate flooding starts at 368 feet, and major flooding at 370 feet.
How do I get alerts when Onondaga Lake rises?
Download StormCast free on Google Play, go to River Gauges, and add Onondaga Lake at Liverpool to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category.
Where is the Onondaga Lake at Liverpool gauge located?
The gauge is located in Onondaga County, New York at coordinates 43.1003°N, 76.2094°W. USGS site number: 04240495. Data is provided by the U.S. Geological Survey and the National Weather Service.
On This River
Upstream: Onondaga Creek near Nedrow
More Resources
Source & Notes
Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey
- Gauge reading may be affected by ice. Forecast flows are unadjusted for ice.