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Hydrograph River at a Glance Download
Petaluma River at D Street Bridge Stage (ft)Observed: 5.54 ft at 3:48AM May 23, 2023Observed: 5.26 ft at 3:56AM May 23, 2023Observed: 5.21 ft at 4:00AM May 23, 2023Observed: 4.99 ft at 4:05AM May 23, 2023Observed: 4.76 ft at 4:13AM May 23, 2023Observed: 4.49 ft at 4:21AM May 23, 2023Observed: 4.21 ft at 4:30AM May 23, 2023Observed: 3.94 ft at 4:38AM May 23, 2023Observed: 3.72 ft at 4:46AM May 23, 2023Observed: 3.52 ft at 4:55AM May 23, 2023Observed: 3.39 ft at 5:00AM May 23, 2023Observed: 3.09 ft at 5:11AM May 23, 2023Observed: 2.89 ft at 5:20AM May 23, 2023Observed: 2.64 ft at 5:28AM May 23, 2023Observed: 2.44 ft at 5:36AM May 23, 2023Observed: 2.37 ft at 6:00AM May 23, 2023Observed: 2.39 ft at 7:00AM May 23, 2023Observed: 2.42 ft at 8:00AM May 23, 2023Observed: 2.42 ft at 9:00AM May 23, 2023Observed: 2.44 ft at 10:00AM May 23, 2023Observed: 2.47 ft at 11:00AM May 23, 2023Observed: 2.69 ft at 11:10AM May 23, 2023Observed: 2.94 ft at 11:18AM May 23, 2023Observed: 3.17 ft at 11:26AM May 23, 2023Observed: 3.42 ft at 11:35AM May 23, 2023Observed: 3.67 ft at 11:43AM May 23, 2023Observed: 3.92 ft at 11:51AM May 23, 2023Observed: 4.14 ft at 12:00PM May 23, 2023Observed: 4.34 ft at 12:08PM May 23, 2023Observed: 4.56 ft at 12:16PM May 23, 2023Observed: 4.76 ft at 12:25PM May 23, 2023Observed: 5.14 ft at 12:41PM May 23, 2023Observed: 5.44 ft at 12:58PM May 23, 2023Observed: 5.46 ft at 1:00PM May 23, 2023Observed: 5.66 ft at 1:15PM May 23, 2023Observed: 5.88 ft at 1:31PM May 23, 2023Observed: 6.13 ft at 1:56PM May 23, 2023Observed: 6.21 ft at 2:00PM May 23, 2023Observed: 6.46 ft at 2:46PM May 23, 2023Observed: 6.51 ft at 3:00PM May 23, 2023Observed: 6.43 ft at 4:00PM May 23, 2023Observed: 6.21 ft at 4:35PM May 23, 2023Observed: 5.88 ft at 5:00PM May 23, 2023Observed: 5.59 ft at 5:16PM May 23, 2023Observed: 5.26 ft at 5:33PM May 23, 2023Observed: 4.99 ft at 5:50PM May 23, 2023Observed: 4.84 ft at 6:00PM May 23, 2023Observed: 4.59 ft at 6:15PM May 23, 2023Observed: 4.31 ft at 6:31PM May 23, 2023Observed: 4.11 ft at 6:48PM May 23, 2023Observed: 4.01 ft at 7:00PM May 23, 2023Observed: 4.56 ft at 8:28PM May 23, 2023Observed: 4.91 ft at 8:53PM May 23, 2023Observed: 5.04 ft at 9:00PM May 23, 2023Observed: 5.24 ft at 9:18PM May 23, 2023Observed: 5.46 ft at 9:43PM May 23, 2023Observed: 5.66 ft at 10:00PM May 23, 2023Observed: 5.86 ft at 10:16PM May 23, 2023Observed: 6.08 ft at 10:41PM May 23, 2023Observed: 6.21 ft at 11:00PM May 23, 2023Observed: 6.43 ft at 11:31PM May 23, 2023Observed: 6.66 ft at 11:56PM May 23, 2023Observed: 6.68 ft at 12:00AM May 24, 2023Observed: 6.88 ft at 12:38AM May 24, 2023Observed: 6.98 ft at 1:00AM May 24, 2023Highest Observation: 7.16 ft at 2:00AM May 24, 2023Observed: 6.96 ft at 2:43AM May 24, 2023Observed: 6.86 ft at 3:00AM May 24, 2023Observed: 6.58 ft at 3:16AM May 24, 2023Observed: 6.28 ft at 3:33AM May 24, 2023Observed: 6.08 ft at 3:41AM May 24, 2023Observed: 5.71 ft at 3:58AM May 24, 2023Observed: 5.68 ft at 4:00AM May 24, 2023Observed: 5.46 ft at 4:06AM May 24, 2023Observed: 5.24 ft at 4:15AM May 24, 2023Observed: 5.01 ft at 4:23AM May 24, 2023Observed: 4.76 ft at 4:31AM May 24, 2023Observed: 4.56 ft at 4:40AM May 24, 2023Observed: 4.31 ft at 4:48AM May 24, 2023Observed: 4.09 ft at 4:56AM May 24, 2023Observed: 4.06 ft at 5:00AM May 24, 2023Observed: 3.64 ft at 5:13AM May 24, 2023Observed: 3.44 ft at 5:21AM May 24, 2023Observed: 3.14 ft at 5:38AM May 24, 2023Observed: 2.89 ft at 5:46AM May 24, 2023Observed: 2.67 ft at 6:00AM May 24, 2023Observed: 2.37 ft at 6:11AM May 24, 2023Observed: 2.39 ft at 7:00AM May 24, 2023Observed: 2.39 ft at 8:00AM May 24, 2023Observed: 2.42 ft at 9:00AM May 24, 2023Observed: 2.42 ft at 10:00AM May 24, 2023Observed: 2.42 ft at 11:00AM May 24, 2023Observed: 2.72 ft at 12:00PM May 24, 2023Observed: 3.02 ft at 12:10PM May 24, 2023Observed: 3.24 ft at 12:18PM May 24, 2023Observed: 3.47 ft at 12:26PM May 24, 2023Observed: 3.67 ft at 12:35PM May 24, 2023Observed: 3.89 ft at 12:43PM May 24, 2023Observed: 4.11 ft at 12:51PM May 24, 2023Observed: 4.31 ft at 1:00PM May 24, 2023Observed: 4.64 ft at 1:16PM May 24, 2023Observed: 4.84 ft at 1:33PM May 24, 2023Observed: 5.09 ft at 1:41PM May 24, 2023Observed: 5.36 ft at 1:58PM May 24, 2023Observed: 5.44 ft at 2:00PM May 24, 2023Observed: 5.73 ft at 2:23PM May 24, 2023Observed: 5.93 ft at 2:56PM May 24, 2023Observed: 5.98 ft at 3:00PM May 24, 2023Observed: 6.16 ft at 4:00PM May 24, 2023Observed: 5.96 ft at 5:00PM May 24, 2023Observed: 5.76 ft at 5:18PM May 24, 2023Observed: 5.49 ft at 5:43PM May 24, 2023Observed: 5.29 ft at 6:00PM May 24, 2023Observed: 5.09 ft at 6:16PM May 24, 2023Observed: 4.89 ft at 6:33PM May 24, 2023Observed: 4.66 ft at 6:50PM May 24, 2023Observed: 4.54 ft at 7:00PM May 24, 2023Observed: 4.29 ft at 7:15PM May 24, 2023Observed: 4.06 ft at 7:31PM May 24, 2023Observed: 3.94 ft at 8:00PM May 24, 2023Observed: 4.14 ft at 8:46PM May 24, 2023Observed: 4.29 ft at 9:00PM May 24, 2023Observed: 4.49 ft at 9:20PM May 24, 2023Observed: 4.76 ft at 9:45PM May 24, 2023Observed: 4.96 ft at 10:00PM May 24, 2023Observed: 5.16 ft at 10:26PM May 24, 2023Observed: 5.39 ft at 10:51PM May 24, 2023Observed: 5.49 ft at 11:00PM May 24, 2023Observed: 5.73 ft at 11:58PM May 24, 2023Observed: 5.76 ft at 12:00AM May 25, 2023Observed: 5.96 ft at 12:23AM May 25, 2023Observed: 6.18 ft at 12:48AM May 25, 2023Observed: 6.31 ft at 1:00AM May 25, 2023Observed: 6.53 ft at 1:38AM May 25, 2023Observed: 6.63 ft at 2:00AM May 25, 2023Observed: 6.66 ft at 3:00AM May 25, 2023Observed: 6.43 ft at 3:26AM May 25, 2023Observed: 6.23 ft at 3:43AM May 25, 2023Observed: 5.96 ft at 4:00AM May 25, 2023Observed: 5.61 ft at 4:16AM May 25, 2023Observed: 5.24 ft at 4:33AM May 25, 2023Observed: 4.84 ft at 4:50AM May 25, 2023Observed: 4.61 ft at 5:00AM May 25, 2023Observed: 4.41 ft at 5:06AM May 25, 2023Observed: 4.04 ft at 5:23AM May 25, 2023Observed: 3.82 ft at 5:31AM May 25, 2023Observed: 3.49 ft at 5:48AM May 25, 2023Observed: 3.32 ft at 6:00AM May 25, 2023Observed: 3.04 ft at 6:13AM May 25, 2023Observed: 2.74 ft at 6:30AM May 25, 2023Observed: 2.54 ft at 6:38AM May 25, 2023Observed: 2.42 ft at 7:00AM May 25, 2023Observed: 2.39 ft at 8:00AM May 25, 2023Observed: 2.39 ft at 9:00AM May 25, 2023Observed: 2.42 ft at 10:00AM May 25, 2023Observed: 2.44 ft at 11:00AM May 25, 2023Observed: 2.44 ft at 12:00PM May 25, 2023Observed: 2.77 ft at 12:28PM May 25, 2023Observed: 2.99 ft at 12:36PM May 25, 2023Observed: 3.34 ft at 12:53PM May 25, 2023Observed: 3.52 ft at 1:00PM May 25, 2023Observed: 3.87 ft at 1:18PM May 25, 2023Observed: 4.24 ft at 1:35PM May 25, 2023Observed: 4.44 ft at 1:43PM May 25, 2023Observed: 4.64 ft at 1:51PM May 25, 2023Observed: 4.76 ft at 2:00PM May 25, 2023Observed: 5.09 ft at 2:16PM May 25, 2023Observed: 5.34 ft at 2:33PM May 25, 2023Observed: 5.59 ft at 2:58PM May 25, 2023Observed: 5.64 ft at 3:00PM May 25, 2023Observed: 5.88 ft at 3:31PM May 25, 2023Observed: 6.03 ft at 4:00PM May 25, 2023Observed: 6.03 ft at 5:00PM May 25, 2023Observed: 5.83 ft at 5:53PM May 25, 2023Observed: 5.81 ft at 6:00PM May 25, 2023Observed: 5.61 ft at 6:26PM May 25, 2023Observed: 5.29 ft at 6:51PM May 25, 2023Observed: 5.24 ft at 7:00PM May 25, 2023Observed: 4.99 ft at 7:16PM May 25, 2023Observed: 4.79 ft at 7:33PM May 25, 2023Observed: 4.59 ft at 7:50PM May 25, 2023Observed: 4.51 ft at 8:00PM May 25, 2023Observed: 4.24 ft at 8:23PM May 25, 2023Observed: 4.06 ft at 9:00PM May 25, 2023Observed: 4.16 ft at 10:00PM May 25, 2023Observed: 4.39 ft at 10:36PM May 25, 2023Observed: 4.49 ft at 11:00PM May 25, 2023Observed: 4.79 ft at 11:26PM May 25, 2023Observed: 4.99 ft at 11:43PM May 25, 2023Observed: 5.14 ft at 12:00AM May 26, 2023Observed: 5.34 ft at 12:33AM May 26, 2023Observed: 5.54 ft at 1:00AM May 26, 2023Observed: 5.78 ft at 1:40AM May 26, 2023Observed: 5.96 ft at 2:00AM May 26, 2023Observed: 6.16 ft at 3:00AM May 26, 2023Observed: 5.96 ft at 3:53AM May 26, 2023Observed: 5.93 ft at 4:00AM May 26, 2023Observed: 5.73 ft at 4:18AM May 26, 2023Observed: 5.46 ft at 4:35AM May 26, 2023Observed: 5.14 ft at 4:51AM May 26, 2023Observed: 5.01 ft at 5:00AM May 26, 2023Observed: 4.71 ft at 5:16AM May 26, 2023Observed: 4.36 ft at 5:33AM May 26, 2023Observed: 4.04 ft at 5:50AM May 26, 2023Observed: 3.92 ft at 6:00AM May 26, 2023Observed: 3.72 ft at 6:15AM May 26, 2023Observed: 3.52 ft at 6:23AM May 26, 2023Observed: 3.29 ft at 6:40AM May 26, 2023Observed: 3.09 ft at 6:48AM May 26, 2023Observed: 2.99 ft at 7:00AM May 26, 2023Observed: 2.79 ft at 7:05AM May 26, 2023Observed: 2.54 ft at 7:21AM May 26, 2023Observed: 2.34 ft at 7:36AM May 26, 2023Observed: 2.42 ft at 8:00AM May 26, 2023Observed: 2.42 ft at 9:00AM May 26, 2023Observed: 2.42 ft at 10:00AM May 26, 2023Observed: 2.42 ft at 11:00AM May 26, 2023Observed: 2.44 ft at 12:00PM May 26, 2023Observed: 2.44 ft at 1:00PM May 26, 2023Observed: 2.67 ft at 1:11PM May 26, 2023Observed: 2.94 ft at 1:28PM May 26, 2023Observed: 3.29 ft at 1:45PM May 26, 2023Observed: 3.54 ft at 2:00PM May 26, 2023Observed: 3.89 ft at 2:18PM May 26, 2023Observed: 4.19 ft at 2:35PM May 26, 2023Observed: 4.46 ft at 2:51PM May 26, 2023Observed: 4.69 ft at 3:00PM May 26, 2023Observed: 4.91 ft at 3:16PM May 26, 2023Observed: 5.11 ft at 3:33PM May 26, 2023Observed: 5.31 ft at 3:50PM May 26, 2023Observed: 5.44 ft at 4:00PM May 26, 2023Observed: 5.66 ft at 4:23PM May 26, 2023Observed: 5.86 ft at 5:00PM May 26, 2023Observed: 6.01 ft at 6:00PM May 26, 2023Observed: 5.78 ft at 6:36PM May 26, 2023Observed: 5.71 ft at 7:00PM May 26, 2023Observed: 5.46 ft at 7:26PM May 26, 2023Observed: 5.24 ft at 7:43PM May 26, 2023Observed: 4.99 ft at 8:00PM May 26, 2023Observed: 4.74 ft at 8:16PM May 26, 2023Observed: 4.49 ft at 8:33PM May 26, 2023Observed: 4.19 ft at 8:50PM May 26, 2023Observed: 4.11 ft at 9:00PM May 26, 2023Observed: 3.84 ft at 9:23PM May 26, 2023Observed: 3.59 ft at 9:56PM May 26, 2023Observed: 3.62 ft at 10:00PM May 26, 2023Observed: 3.54 ft at 11:00PM May 26, 2023Observed: 3.79 ft at 12:00AM May 27, 2023Observed: 4.04 ft at 12:18AM May 27, 2023Observed: 4.29 ft at 12:35AM May 27, 2023Observed: 4.49 ft at 1:00AM May 27, 2023Observed: 4.74 ft at 1:41AM May 27, 2023Observed: 4.91 ft at 2:00AM May 27, 2023Observed: 5.14 ft at 2:40AM May 27, 2023Observed: 5.29 ft at 3:00AM May 27, 2023Observed: 5.51 ft at 3:46AM May 27, 2023Observed: 5.59 ft at 4:00AM May 27, 2023Observed: 5.36 ft at 4:53AM May 27, 2023Observed: 5.16 ft at 5:18AM May 27, 2023Observed: 4.96 ft at 5:35AM May 27, 2023Observed: 4.76 ft at 5:51AM May 27, 2023Observed: 4.61 ft at 6:00AM May 27, 2023Observed: 4.34 ft at 6:16AM May 27, 2023Observed: 4.04 ft at 6:33AM May 27, 2023Observed: 3.74 ft at 6:50AM May 27, 2023Observed: 3.62 ft at 7:00AM May 27, 2023Observed: 3.32 ft at 7:15AM May 27, 2023Observed: 3.09 ft at 7:31AM May 27, 2023Observed: 2.77 ft at 7:56AM May 27, 2023Observed: 2.82 ft at 8:00AM May 27, 2023Observed: 2.62 ft at 8:13AM May 27, 2023Observed: 2.39 ft at 8:30AM May 27, 2023Observed: 2.39 ft at 9:00AM May 27, 2023Observed: 2.42 ft at 10:00AM May 27, 2023Observed: 2.42 ft at 11:00AM May 27, 2023Observed: 2.44 ft at 12:00PM May 27, 2023Observed: 2.44 ft at 1:00PM May 27, 2023Observed: 2.67 ft at 1:38PM May 27, 2023Observed: 2.99 ft at 1:55PM May 27, 2023Observed: 3.12 ft at 2:00PM May 27, 2023Observed: 3.37 ft at 2:11PM May 27, 2023Observed: 3.57 ft at 2:20PM May 27, 2023Observed: 3.87 ft at 2:36PM May 27, 2023Observed: 4.14 ft at 2:53PM May 27, 2023Observed: 4.31 ft at 3:00PM May 27, 2023Observed: 4.59 ft at 3:18PM May 27, 2023Observed: 4.84 ft at 3:35PM May 27, 2023Observed: 5.06 ft at 3:51PM May 27, 2023Observed: 5.16 ft at 4:00PM May 27, 2023Observed: 5.36 ft at 4:16PM May 27, 2023Observed: 5.56 ft at 4:41PM May 27, 2023Observed: 5.78 ft at 4:58PM May 27, 2023Observed: 5.81 ft at 5:00PM May 27, 2023Observed: 6.03 ft at 6:00PM May 27, 2023Observed: 6.03 ft at 7:00PM May 27, 2023Observed: 5.83 ft at 7:36PM May 27, 2023Observed: 5.68 ft at 8:00PM May 27, 2023Observed: 5.46 ft at 8:18PM May 27, 2023Observed: 5.26 ft at 8:35PM May 27, 2023Observed: 4.96 ft at 9:00PM May 27, 2023Observed: 4.76 ft at 9:08PM May 27, 2023Observed: 4.49 ft at 9:25PM May 27, 2023Observed: 4.29 ft at 9:33PM May 27, 2023Observed: 3.99 ft at 9:50PM May 27, 2023Observed: 3.89 ft at 10:00PM May 27, 2023Observed: 3.64 ft at 10:15PM May 27, 2023Observed: 3.42 ft at 10:40PM May 27, 2023Observed: 3.34 ft at 11:00PM May 27, 2023Observed: 3.22 ft at 12:00AM May 28, 2023PTBC1(plotting HGIRR) Graph Created (3:45AM May 28, 2023)ObservedLatest observed value: 3.22 ft at 12:00 AM PDT 28-May-2023. Flood Stage is 8.4 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 Petaluma River at D Street Bridge. 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: 9.8
Moderate Flood Stage: 8.6
Flood Stage: 8.4
Action Stage: 8
Low Stage (in feet): -9999

Historic Crests
Currently none available.

Recent Crests
Currently none available.

Low Water Records
Currently none available.
Zoom Level:14
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
9.8 Major Flood Stage. Water reaches elevation of C Street pump station floor height.
8.6 Moderate Flood Stage. NWS will issue a Flash Flood Warning if not already issued. Streets start to flood down to C Street. C Street sewer pump station sand-bagged.
8.4 Minor Flood Stage. Water begins going out of bank at the foot of C Street.
8 Action Stage. NWS and City of Petaluma begin to monitor the situation closely. City of Petaluma Fire Chief, Watch Commander, and Water Resources and Conservation Director notified.
About This Location Collapse

Latitude: 38.233333° N, Longitude: 122.634722° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 8.4 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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