Major Flood
16 ft
Current Water Level
Gage Height
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Streamflow
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Last Reading
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FLOOD STAGES
Know the flood categories.
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
Moderate Flood
14.5 ft
Minor Flood
13 ft
Action Stage
10.4 ft
What Floods at Each Level
16 ft
the Cedar River will cause major flooding in Renton, especially at the Renton Airport. Flooding will occur all along the river including headwaters, tributaries, and other streams within and near the Cedar River Basin.
14.5 ft
the Cedar River will flood areas of Renton including the Renton Airport.
13 ft
the Cedar River will cause minor flooding along the river in Renton.
11.3 ft
the Cedar River will locally overflow its banks, causing some areas of standing water, especially upstream of Maple Valley in the Dorre Don area.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Nov 23, 1990 | 17.13 ft | 10,600 cfs |
| Jan 8, 2009 | 16.27 ft | 9,390 cfs |
| Nov 30, 1995 | 16.04 ft | 7,650 cfs |
About This Gauge
USGS Site
NWS LID
RNTW1
River
Cedar River (WA)
County
King, WA
Coordinates
47.4828°N, 122.2022°W
Get Flood Alerts for Cedar River (WA)
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 Cedar River (WA) at Renton?
The Cedar River (WA) at Renton gauge is maintained by USGS (site 12119000) 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 Cedar River (WA) at Renton?
The NWS-defined flood stage for Cedar River (WA) at Renton is 13 feet. Action stage begins at 10.4 feet. Moderate flooding starts at 14.5 feet, and major flooding at 16 feet.
How do I get alerts when Cedar River (WA) rises?
Download StormCast free on Google Play, go to River Gauges, and add Cedar River (WA) at Renton 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 Cedar River (WA) at Renton gauge located?
The gauge is located in King County, Washington at coordinates 47.4828°N, 122.2022°W. USGS site number: 12119000. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on Cedar River (WA)
On This River
Upstream: Cedar River (WA) near Landsburg
More Resources
Source & Notes
Data provided by: U. S. Geological Survey, Observations courtesy of U.S. Geological Survey
- River forecasts for this location take into account past and future precipitation. The stages/flows that will occur may be different if future rainfall is different than forecast.