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Hydrograph River at a Glance Download
Petaluma River at D Street Bridge Stage (ft)Observed: 2.44 ft at 2:00PM May 04, 2021Observed: 2.42 ft at 3:00PM May 04, 2021Observed: 2.42 ft at 4:00PM May 04, 2021Observed: 2.42 ft at 5:00PM May 04, 2021Observed: 2.42 ft at 6:00PM May 04, 2021Observed: 2.57 ft at 7:00PM May 04, 2021Observed: 2.94 ft at 7:11PM May 04, 2021Observed: 3.17 ft at 7:20PM May 04, 2021Observed: 3.42 ft at 7:28PM May 04, 2021Observed: 3.69 ft at 7:36PM May 04, 2021Observed: 3.92 ft at 7:45PM May 04, 2021Observed: 4.14 ft at 7:53PM May 04, 2021Observed: 4.29 ft at 8:00PM May 04, 2021Observed: 4.49 ft at 8:10PM May 04, 2021Observed: 4.84 ft at 8:26PM May 04, 2021Observed: 5.11 ft at 8:43PM May 04, 2021Observed: 5.36 ft at 9:00PM May 04, 2021Observed: 5.64 ft at 9:25PM May 04, 2021Observed: 5.88 ft at 9:50PM May 04, 2021Observed: 5.98 ft at 10:00PM May 04, 2021Observed: 6.03 ft at 11:00PM May 04, 2021Observed: 5.81 ft at 11:30PM May 04, 2021Observed: 5.59 ft at 11:46PM May 04, 2021Observed: 5.39 ft at 12:00AM May 05, 2021Observed: 5.04 ft at 12:20AM May 05, 2021Observed: 4.74 ft at 12:36AM May 05, 2021Observed: 4.54 ft at 12:45AM May 05, 2021Observed: 4.24 ft at 1:00AM May 05, 2021Observed: 3.99 ft at 1:10AM May 05, 2021Observed: 3.67 ft at 1:26AM May 05, 2021Observed: 3.34 ft at 1:43AM May 05, 2021Observed: 3.09 ft at 2:00AM May 05, 2021Observed: 2.89 ft at 2:08AM May 05, 2021Observed: 2.59 ft at 2:25AM May 05, 2021Observed: 2.34 ft at 2:41AM May 05, 2021Observed: 2.39 ft at 3:00AM May 05, 2021Observed: 2.39 ft at 4:00AM May 05, 2021Observed: 2.39 ft at 5:00AM May 05, 2021Observed: 2.67 ft at 5:36AM May 05, 2021Observed: 2.94 ft at 5:53AM May 05, 2021Observed: 3.02 ft at 6:00AM May 05, 2021Observed: 3.24 ft at 6:10AM May 05, 2021Observed: 3.47 ft at 6:26AM May 05, 2021Observed: 3.87 ft at 6:43AM May 05, 2021Observed: 4.19 ft at 7:00AM May 05, 2021Observed: 4.44 ft at 7:16AM May 05, 2021Observed: 4.71 ft at 7:33AM May 05, 2021Observed: 4.96 ft at 7:50AM May 05, 2021Observed: 5.14 ft at 8:00AM May 05, 2021Observed: 5.39 ft at 8:23AM May 05, 2021Observed: 5.61 ft at 8:48AM May 05, 2021Observed: 5.76 ft at 9:00AM May 05, 2021Observed: 5.81 ft at 10:00AM May 05, 2021Observed: 5.54 ft at 10:36AM May 05, 2021Observed: 5.29 ft at 10:53AM May 05, 2021Observed: 5.19 ft at 11:00AM May 05, 2021Observed: 4.96 ft at 11:10AM May 05, 2021Observed: 4.76 ft at 11:18AM May 05, 2021Observed: 4.36 ft at 11:35AM May 05, 2021Observed: 3.96 ft at 11:51AM May 05, 2021Observed: 3.82 ft at 12:00PM May 05, 2021Observed: 3.47 ft at 12:16PM May 05, 2021Observed: 3.12 ft at 12:33PM May 05, 2021Observed: 2.79 ft at 12:50PM May 05, 2021Observed: 2.64 ft at 1:00PM May 05, 2021Observed: 2.39 ft at 1:15PM May 05, 2021Observed: 2.42 ft at 2:00PM May 05, 2021Observed: 2.47 ft at 3:00PM May 05, 2021Observed: 2.44 ft at 4:00PM May 05, 2021Observed: 2.44 ft at 5:00PM May 05, 2021Observed: 2.44 ft at 6:00PM May 05, 2021Observed: 2.44 ft at 7:00PM May 05, 2021Observed: 2.84 ft at 7:46PM May 05, 2021Observed: 3.12 ft at 7:55PM May 05, 2021Observed: 3.32 ft at 8:00PM May 05, 2021Observed: 3.64 ft at 8:11PM May 05, 2021Observed: 3.84 ft at 8:20PM May 05, 2021Observed: 4.06 ft at 8:28PM May 05, 2021Observed: 4.44 ft at 8:45PM May 05, 2021Observed: 4.64 ft at 8:53PM May 05, 2021Observed: 4.79 ft at 9:00PM May 05, 2021Observed: 5.09 ft at 9:18PM May 05, 2021Observed: 5.34 ft at 9:35PM May 05, 2021Observed: 5.64 ft at 10:00PM May 05, 2021Observed: 5.88 ft at 10:25PM May 05, 2021Observed: 6.06 ft at 11:00PM May 05, 2021Observed: 6.08 ft at 12:00AM May 06, 2021Observed: 5.88 ft at 12:21AM May 06, 2021Observed: 5.68 ft at 12:38AM May 06, 2021Observed: 5.36 ft at 12:55AM May 06, 2021Observed: 5.29 ft at 1:00AM May 06, 2021Observed: 5.04 ft at 1:11AM May 06, 2021Observed: 4.71 ft at 1:28AM May 06, 2021Observed: 4.51 ft at 1:36AM May 06, 2021Observed: 4.29 ft at 1:45AM May 06, 2021Observed: 4.09 ft at 1:53AM May 06, 2021Observed: 3.96 ft at 2:00AM May 06, 2021Observed: 3.72 ft at 2:10AM May 06, 2021Observed: 3.52 ft at 2:18AM May 06, 2021Observed: 3.17 ft at 2:35AM May 06, 2021Observed: 2.87 ft at 2:51AM May 06, 2021Observed: 2.69 ft at 3:00AM May 06, 2021Observed: 2.49 ft at 3:08AM May 06, 2021Observed: 2.42 ft at 4:00AM May 06, 2021Observed: 2.42 ft at 5:00AM May 06, 2021Observed: 2.42 ft at 6:00AM May 06, 2021Observed: 2.39 ft at 7:00AM May 06, 2021Observed: 2.64 ft at 7:18AM May 06, 2021Observed: 2.89 ft at 7:35AM May 06, 2021Observed: 3.09 ft at 7:43AM May 06, 2021Observed: 3.39 ft at 8:00AM May 06, 2021Observed: 3.67 ft at 8:16AM May 06, 2021Observed: 3.94 ft at 8:33AM May 06, 2021Observed: 4.26 ft at 8:50AM May 06, 2021Observed: 4.44 ft at 9:00AM May 06, 2021Observed: 4.66 ft at 9:15AM May 06, 2021Observed: 4.86 ft at 9:31AM May 06, 2021Observed: 5.06 ft at 9:48AM May 06, 2021Observed: 5.19 ft at 10:00AM May 06, 2021Observed: 5.39 ft at 10:46AM May 06, 2021Observed: 5.41 ft at 11:00AM May 06, 2021Observed: 5.16 ft at 11:28AM May 06, 2021Observed: 4.96 ft at 11:45AM May 06, 2021Observed: 4.39 ft at 12:18PM May 06, 2021Observed: 4.19 ft at 12:26PM May 06, 2021Observed: 3.84 ft at 12:43PM May 06, 2021Observed: 3.64 ft at 12:51PM May 06, 2021Observed: 3.49 ft at 1:00PM May 06, 2021Observed: 3.27 ft at 1:08PM May 06, 2021Observed: 2.92 ft at 1:25PM May 06, 2021Observed: 2.59 ft at 1:41PM May 06, 2021Observed: 2.34 ft at 1:58PM May 06, 2021Observed: 2.37 ft at 2:00PM May 06, 2021Observed: 2.37 ft at 3:00PM May 06, 2021Observed: 2.37 ft at 4:00PM May 06, 2021Observed: 2.42 ft at 5:00PM May 06, 2021Observed: 2.42 ft at 6:00PM May 06, 2021Observed: 2.44 ft at 7:00PM May 06, 2021Observed: 2.44 ft at 8:00PM May 06, 2021Observed: 2.82 ft at 8:46PM May 06, 2021Observed: 3.09 ft at 8:55PM May 06, 2021Observed: 3.29 ft at 9:00PM May 06, 2021Observed: 3.67 ft at 9:11PM May 06, 2021Observed: 3.94 ft at 9:20PM May 06, 2021Observed: 4.16 ft at 9:28PM May 06, 2021Observed: 4.36 ft at 9:36PM May 06, 2021Observed: 4.64 ft at 9:45PM May 06, 2021Observed: 4.94 ft at 10:00PM May 06, 2021Observed: 5.14 ft at 10:10PM May 06, 2021Observed: 5.44 ft at 10:26PM May 06, 2021Observed: 5.68 ft at 10:43PM May 06, 2021Observed: 5.93 ft at 11:00PM May 06, 2021Observed: 6.16 ft at 11:25PM May 06, 2021Observed: 6.28 ft at 12:00AM May 07, 2021Observed: 6.01 ft at 12:56AM May 07, 2021Observed: 5.98 ft at 1:00AM May 07, 2021Observed: 5.76 ft at 1:13AM May 07, 2021Observed: 5.49 ft at 1:30AM May 07, 2021Observed: 5.29 ft at 1:38AM May 07, 2021Observed: 5.09 ft at 1:46AM May 07, 2021Observed: 4.89 ft at 1:55AM May 07, 2021Observed: 4.79 ft at 2:00AM May 07, 2021Observed: 4.49 ft at 2:11AM May 07, 2021Observed: 4.29 ft at 2:20AM May 07, 2021Observed: 4.06 ft at 2:28AM May 07, 2021Observed: 3.84 ft at 2:36AM May 07, 2021Observed: 3.47 ft at 2:53AM May 07, 2021Observed: 3.32 ft at 3:00AM May 07, 2021Observed: 3.09 ft at 3:10AM May 07, 2021Observed: 2.74 ft at 3:26AM May 07, 2021Observed: 2.54 ft at 3:35AM May 07, 2021Observed: 2.34 ft at 3:51AM May 07, 2021Observed: 2.39 ft at 4:00AM May 07, 2021Observed: 2.42 ft at 5:00AM May 07, 2021Observed: 2.39 ft at 6:00AM May 07, 2021Observed: 2.39 ft at 7:00AM May 07, 2021Observed: 2.42 ft at 8:00AM May 07, 2021Observed: 2.67 ft at 8:43AM May 07, 2021Observed: 2.99 ft at 9:00AM May 07, 2021Observed: 3.37 ft at 9:16AM May 07, 2021Observed: 3.62 ft at 9:25AM May 07, 2021Observed: 3.94 ft at 9:41AM May 07, 2021Observed: 4.16 ft at 9:50AM May 07, 2021Observed: 4.31 ft at 10:00AM May 07, 2021Observed: 4.59 ft at 10:15AM May 07, 2021Observed: 4.84 ft at 10:31AM May 07, 2021Observed: 5.04 ft at 10:48AM May 07, 2021Observed: 5.19 ft at 11:00AM May 07, 2021Observed: 5.39 ft at 11:30AM May 07, 2021Observed: 5.46 ft at 12:00PM May 07, 2021Observed: 5.21 ft at 12:45PM May 07, 2021Observed: 5.01 ft at 1:00PM May 07, 2021Observed: 4.81 ft at 1:10PM May 07, 2021Observed: 4.44 ft at 1:26PM May 07, 2021Observed: 4.11 ft at 1:43PM May 07, 2021Observed: 3.77 ft at 2:00PM May 07, 2021Observed: 3.39 ft at 2:16PM May 07, 2021Observed: 3.04 ft at 2:33PM May 07, 2021Observed: 2.84 ft at 2:41PM May 07, 2021Observed: 2.64 ft at 2:50PM May 07, 2021Observed: 2.44 ft at 3:00PM May 07, 2021Observed: 2.42 ft at 4:00PM May 07, 2021Observed: 2.42 ft at 5:00PM May 07, 2021Observed: 2.42 ft at 6:00PM May 07, 2021Observed: 2.44 ft at 7:00PM May 07, 2021Observed: 2.42 ft at 8:00PM May 07, 2021Observed: 2.59 ft at 9:00PM May 07, 2021Observed: 2.99 ft at 9:13PM May 07, 2021Observed: 3.24 ft at 9:21PM May 07, 2021Observed: 3.49 ft at 9:30PM May 07, 2021Observed: 3.77 ft at 9:38PM May 07, 2021Observed: 3.99 ft at 9:46PM May 07, 2021Observed: 4.26 ft at 9:55PM May 07, 2021Observed: 4.41 ft at 10:00PM May 07, 2021Observed: 4.74 ft at 10:11PM May 07, 2021Observed: 4.94 ft at 10:20PM May 07, 2021Observed: 5.14 ft at 10:28PM May 07, 2021Observed: 5.44 ft at 10:45PM May 07, 2021Observed: 5.61 ft at 11:00PM May 07, 2021Observed: 5.86 ft at 11:18PM May 07, 2021Observed: 6.06 ft at 11:35PM May 07, 2021Observed: 6.28 ft at 12:00AM May 08, 2021Observed: 6.26 ft at 1:00AM May 08, 2021Observed: 6.03 ft at 1:23AM May 08, 2021Observed: 5.76 ft at 1:40AM May 08, 2021Observed: 5.44 ft at 1:56AM May 08, 2021Observed: 5.36 ft at 2:00AM May 08, 2021Observed: 5.09 ft at 2:13AM May 08, 2021Observed: 4.89 ft at 2:21AM May 08, 2021Observed: 4.51 ft at 2:38AM May 08, 2021Observed: 4.29 ft at 2:46AM May 08, 2021Observed: 4.06 ft at 2:55AM May 08, 2021Observed: 3.96 ft at 3:00AM May 08, 2021Observed: 3.67 ft at 3:11AM May 08, 2021Observed: 3.44 ft at 3:20AM May 08, 2021Observed: 3.07 ft at 3:36AM May 08, 2021Observed: 2.87 ft at 3:45AM May 08, 2021Observed: 2.67 ft at 3:53AM May 08, 2021Observed: 2.57 ft at 4:00AM May 08, 2021Observed: 2.37 ft at 4:10AM May 08, 2021Observed: 2.42 ft at 5:00AM May 08, 2021Observed: 2.39 ft at 6:00AM May 08, 2021Observed: 2.42 ft at 7:00AM May 08, 2021Observed: 2.44 ft at 8:00AM May 08, 2021Observed: 2.44 ft at 9:00AM May 08, 2021Observed: 2.47 ft at 10:00AM May 08, 2021Observed: 2.69 ft at 10:08AM May 08, 2021Observed: 2.94 ft at 10:16AM May 08, 2021Observed: 3.24 ft at 10:25AM May 08, 2021Observed: 3.47 ft at 10:33AM May 08, 2021Observed: 3.72 ft at 10:41AM May 08, 2021Observed: 3.94 ft at 10:50AM May 08, 2021Observed: 4.14 ft at 10:58AM May 08, 2021Observed: 4.21 ft at 11:00AM May 08, 2021Observed: 4.54 ft at 11:15AM May 08, 2021Observed: 4.79 ft at 11:31AM May 08, 2021Observed: 5.09 ft at 11:48AM May 08, 2021Observed: 5.24 ft at 12:00PM May 08, 2021Observed: 5.44 ft at 12:21PM May 08, 2021Observed: 5.46 ft at 1:00PM May 08, 2021Observed: 5.24 ft at 1:28PM May 08, 2021Observed: 4.96 ft at 1:53PM May 08, 2021Observed: 4.84 ft at 2:00PM May 08, 2021Observed: 4.64 ft at 2:10PM May 08, 2021Observed: 4.44 ft at 2:18PM May 08, 2021Observed: 4.24 ft at 2:26PM May 08, 2021Observed: 4.04 ft at 2:35PM May 08, 2021Observed: 3.79 ft at 2:43PM May 08, 2021Observed: 3.49 ft at 3:00PM May 08, 2021Observed: 3.27 ft at 3:08PM May 08, 2021Observed: 3.07 ft at 3:16PM May 08, 2021Observed: 2.79 ft at 3:33PM May 08, 2021Observed: 2.59 ft at 3:41PM May 08, 2021Observed: 2.42 ft at 4:00PM May 08, 2021Observed: 2.47 ft at 5:00PM May 08, 2021Observed: 2.44 ft at 6:00PM May 08, 2021Observed: 2.47 ft at 7:00PM May 08, 2021Observed: 2.47 ft at 8:00PM May 08, 2021Observed: 2.44 ft at 9:00PM May 08, 2021Observed: 2.74 ft at 9:15PM May 08, 2021Observed: 2.97 ft at 9:23PM May 08, 2021Observed: 3.19 ft at 9:31PM May 08, 2021Observed: 3.42 ft at 9:40PM May 08, 2021Observed: 3.64 ft at 9:48PM May 08, 2021Observed: 3.87 ft at 9:56PM May 08, 2021Observed: 3.99 ft at 10:00PM May 08, 2021Observed: 4.36 ft at 10:13PM May 08, 2021Observed: 4.59 ft at 10:21PM May 08, 2021Observed: 4.81 ft at 10:30PM May 08, 2021Observed: 5.19 ft at 10:46PM May 08, 2021Observed: 5.44 ft at 11:00PM May 08, 2021Observed: 5.66 ft at 11:20PM May 08, 2021Observed: 5.88 ft at 11:36PM May 08, 2021Observed: 6.11 ft at 11:53PM May 08, 2021Observed: 6.16 ft at 12:00AM May 09, 2021Highest Observation: 6.33 ft at 1:00AM May 09, 2021Observed: 6.13 ft at 1:41AM May 09, 2021Observed: 5.93 ft at 1:58AM May 09, 2021Observed: 5.96 ft at 2:00AM May 09, 2021Observed: 5.68 ft at 2:15AM May 09, 2021Observed: 5.34 ft at 2:31AM May 09, 2021Observed: 5.14 ft at 2:40AM May 09, 2021Observed: 4.94 ft at 2:48AM May 09, 2021Observed: 4.74 ft at 3:00AM May 09, 2021Observed: 4.34 ft at 3:13AM May 09, 2021Observed: 4.09 ft at 3:21AM May 09, 2021Observed: 3.87 ft at 3:30AM May 09, 2021Observed: 3.47 ft at 3:46AM May 09, 2021Observed: 3.14 ft at 4:00AM May 09, 2021Observed: 2.87 ft at 4:11AM May 09, 2021Observed: 2.49 ft at 4:28AM May 09, 2021Observed: 2.42 ft at 5:00AM May 09, 2021Observed: 2.44 ft at 6:00AM May 09, 2021Observed: 2.42 ft at 7:00AM May 09, 2021Observed: 2.44 ft at 8:00AM May 09, 2021Observed: 2.42 ft at 9:00AM May 09, 2021Observed: 2.42 ft at 10:00AM May 09, 2021Observed: 2.62 ft at 10:51AM May 09, 2021Observed: 2.89 ft at 11:00AM May 09, 2021Observed: 3.14 ft at 11:08AM May 09, 2021Observed: 3.39 ft at 11:16AM May 09, 2021Observed: 3.64 ft at 11:25AM May 09, 2021Observed: 3.89 ft at 11:33AM May 09, 2021Observed: 4.14 ft at 11:41AM May 09, 2021Observed: 4.36 ft at 11:50AM May 09, 2021Observed: 4.56 ft at 11:58AM May 09, 2021Observed: 4.64 ft at 12:00PM May 09, 2021Observed: 4.89 ft at 12:15PM May 09, 2021Observed: 5.14 ft at 12:31PM May 09, 2021Observed: 5.36 ft at 12:56PM May 09, 2021Observed: 5.39 ft at 1:00PM May 09, 2021PTBC1(plotting HGIRR) Graph Created (1:15PM May 9, 2021)ObservedLatest observed value: 5.39 ft at 1:00 PM PDT 9-May-2021. 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.
NWS Information
National Weather Service
San Francisco Bay Area Weather Forecast Office
21 Grace Hopper Ave, Stop 5
Monterey, CA 93943-5505
(831) 656-1725
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Page last modified: 2-Nov-2020 7:27 PM
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