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Hydrograph River at a Glance Download
Carneros Creek at Old Sonoma Road Stage (ft)Observed: 0.48 ft at 7:30AM May 03, 2024Observed: 0.43 ft at 7:55AM May 03, 2024Observed: 0.38 ft at 11:05AM May 03, 2024Observed: 0.33 ft at 11:45AM May 03, 2024Observed: 0.28 ft at 12:15PM May 03, 2024Observed: 0.27 ft at 1:10PM May 03, 2024Observed: 0.32 ft at 3:30PM May 03, 2024Observed: 0.37 ft at 3:50PM May 03, 2024Observed: 0.42 ft at 7:36PM May 03, 2024Observed: 0.42 ft at 7:40PM May 03, 2024Observed: 0.47 ft at 8:35PM May 03, 2024Observed: 0.47 ft at 8:40PM May 03, 2024Observed: 0.5 ft at 1:10AM May 04, 2024Observed: 0.45 ft at 6:22AM May 04, 2024Observed: 0.45 ft at 6:25AM May 04, 2024Observed: 0.5 ft at 8:51AM May 04, 2024Observed: 0.51 ft at 8:55AM May 04, 2024Observed: 0.53 ft at 1:09PM May 04, 2024Observed: 0.53 ft at 1:10PM May 04, 2024Observed: 0.48 ft at 2:10PM May 04, 2024Observed: 0.53 ft at 2:20PM May 04, 2024Observed: 0.58 ft at 3:00PM May 04, 2024Observed: 0.53 ft at 3:35PM May 04, 2024Observed: 0.57 ft at 4:18PM May 04, 2024Observed: 0.58 ft at 4:20PM May 04, 2024Highest Observation: 0.63 ft at 6:40PM May 04, 2024Observed: 0.59 ft at 1:10AM May 05, 2024Observed: 0.55 ft at 4:05AM May 05, 2024Observed: 0.49 ft at 7:45AM May 05, 2024Observed: 0.45 ft at 8:05AM May 05, 2024Observed: 0.49 ft at 1:05PM May 05, 2024Observed: 0.55 ft at 1:10PM May 05, 2024Observed: 0.49 ft at 1:20PM May 05, 2024Observed: 0.45 ft at 1:25PM May 05, 2024Observed: 0.49 ft at 3:30PM May 05, 2024Observed: 0.54 ft at 3:33PM May 05, 2024Observed: 0.55 ft at 3:35PM May 05, 2024Observed: 0.52 ft at 1:10AM May 06, 2024Observed: 0.47 ft at 7:30AM May 06, 2024Observed: 0.42 ft at 7:50AM May 06, 2024Observed: 0.42 ft at 1:10PM May 06, 2024Observed: 0.47 ft at 3:40PM May 06, 2024Observed: 0.52 ft at 4:30PM May 06, 2024Observed: 0.51 ft at 1:09AM May 07, 2024Observed: 0.52 ft at 1:10AM May 07, 2024Observed: 0.46 ft at 7:35AM May 07, 2024Observed: 0.41 ft at 7:55AM May 07, 2024Observed: 0.34 ft at 1:36PM May 07, 2024Observed: 0.34 ft at 1:40PM May 07, 2024Observed: 0.29 ft at 2:15PM May 07, 2024Observed: 0.34 ft at 3:35PM May 07, 2024Observed: 0.39 ft at 4:05PM May 07, 2024Observed: 0.52 ft at 1:10AM May 08, 2024Observed: 0.47 ft at 2:30AM May 08, 2024Observed: 0.42 ft at 3:00AM May 08, 2024CCJC1(plotting HGIRR) Graph Created (6:00AM May 8, 2024)ObservedLatest observed value: 0.42 ft at 3:00 AM PDT 8-May-2024. Flood Stage is 19.5 ft
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About this graph
Tabular Data (UTC)
Tabular Data (PDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Graphical forecasts are not available for the Carneros Creek at Old Sonoma Road. During times of high water, forecast crest information can be found in the text products.
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Flood Categories (in feet)
Major Flood Stage: 28
Moderate Flood Stage: 25
Flood Stage: 19.5
Action Stage: 17.5
Low Stage (in feet): -9999

Historic Crests
Currently none available.

Recent Crests
Currently none available.

Low Water Records
Currently none available.
Zoom Level:16
KML Image
Gauge LocationGauge Map Marker
 Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
28 Major Flood Stage. Water is 3 feet deep on floodplain. Major roadway flooding in the area, including Highway 12/121.
25 Moderate Flood Stage. Flood waters are on the floodplain. Old Sonoma Road flooded. Old Sonoma Highway and Highway 12/121 likely flooded or in jeopardy just downstream.
19.5 Minor Flood Stage. Backwatering begins at Old Sonoma Road bridge. Water level is reaching elevation of bridge, with possible overflow. NWS will issue a Flash Flood Warning if not yet already issued.
17.5 Monitor Stage. Water is 2 feet below backwatering at Old Sonoma Road bridge. NWS will issue a Flash Flood Watch if not already issued.
About This Location Collapse

Latitude: 38.256667° N, Longitude: 122.340278° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 19.5 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)		 Elevation
(gauge height = flood stage)		 Elevation information source
NAVD88 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  
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The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
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