Major Flood
58 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
56 ft
Minor Flood
54 ft
Action Stage
50.7 ft
What Floods at Each Level
60 ft
the Snoqualmie River will cause severe near record flooding from Fall City downstream through Carnation and Duvall. Deep and swift flood waters will inundate many farms...residential areas...and roads. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Snoqualmie River Basin.
58 ft
the Snoqualmie River will cause major flooding from Fall City downstream through Carnation and Duvall. Deep and swift flood waters will inundate many farms...residential areas...and roads. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Snoqualmie River Basin.
56 ft
the Snoqualmie River will cause widespread flooding from Fall City downstream through Carnation and Duvall...inundating much of the farm land and numerous roads.
54 ft
the Snoqualmie River will flood much of the farm land and several roads from Fall City downstream through Carnation and Duvall.
51 ft
the Snoqualmie River will spill over its banks from Fall City downstream through Carnation and Duvall...with shallow water over some farm land and several roads.
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 |
|---|---|---|
| Jan 8, 2009 | 62.21 ft | 82,900 cfs |
| Dec 11, 2025 | 60.76 ft | 89,686 cfs |
| Dec 10, 2025 | 60.76 ft | 89,700 cfs |
About This Gauge
USGS Site
NWS LID
CRNW1
River
Snoqualmie River
County
King, WA
Coordinates
47.6661°N, 121.9242°W
Get Flood Alerts for Snoqualmie River
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 Snoqualmie River near Carnation?
The Snoqualmie River near Carnation gauge is maintained by USGS (site 12149000) 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 Snoqualmie River near Carnation?
The NWS-defined flood stage for Snoqualmie River near Carnation is 54 feet. Action stage begins at 50.7 feet. Moderate flooding starts at 56 feet, and major flooding at 58 feet.
How do I get alerts when Snoqualmie River rises?
Download StormCast free on Google Play, go to River Gauges, and add Snoqualmie River near Carnation 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 Snoqualmie River near Carnation gauge located?
The gauge is located in King County, Washington at coordinates 47.6661°N, 121.9242°W. USGS site number: 12149000. Data is provided by the U.S. Geological Survey and the National Weather Service.
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Source & Notes
Data provided by: 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.