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Hydrograph River at a Glance Download
Petaluma River at D Street Bridge Stage (ft)Observed: 3.24 ft at 12:00PM Apr 20, 2024Observed: 2.89 ft at 12:13PM Apr 20, 2024Observed: 2.32 ft at 12:38PM Apr 20, 2024Observed: 2.34 ft at 1:00PM Apr 20, 2024Observed: 2.42 ft at 2:00PM Apr 20, 2024Observed: 2.42 ft at 3:00PM Apr 20, 2024Observed: 2.42 ft at 4:00PM Apr 20, 2024Observed: 2.42 ft at 5:00PM Apr 20, 2024Observed: 2.99 ft at 6:11PM Apr 20, 2024Observed: 3.79 ft at 6:36PM Apr 20, 2024Observed: 4.44 ft at 7:00PM Apr 20, 2024Observed: 4.64 ft at 7:10PM Apr 20, 2024Observed: 5.24 ft at 7:35PM Apr 20, 2024Observed: 5.71 ft at 8:00PM Apr 20, 2024Observed: 5.91 ft at 8:16PM Apr 20, 2024Observed: 6.13 ft at 8:33PM Apr 20, 2024Observed: 6.46 ft at 9:00PM Apr 20, 2024Observed: 6.61 ft at 10:00PM Apr 20, 2024Observed: 4.04 ft at 12:26AM Apr 21, 2024Observed: 3.77 ft at 12:35AM Apr 21, 2024Observed: 3.29 ft at 12:51AM Apr 21, 2024Observed: 2.84 ft at 1:08AM Apr 21, 2024Observed: 2.44 ft at 1:25AM Apr 21, 2024Observed: 2.34 ft at 2:00AM Apr 21, 2024Observed: 2.37 ft at 3:00AM Apr 21, 2024Observed: 2.34 ft at 4:00AM Apr 21, 2024Observed: 2.34 ft at 5:00AM Apr 21, 2024Observed: 2.37 ft at 6:00AM Apr 21, 2024Observed: 2.69 ft at 6:41AM Apr 21, 2024Observed: 2.94 ft at 6:50AM Apr 21, 2024Observed: 3.24 ft at 7:00AM Apr 21, 2024Observed: 3.59 ft at 7:15AM Apr 21, 2024Observed: 3.84 ft at 7:23AM Apr 21, 2024Observed: 4.24 ft at 7:40AM Apr 21, 2024Observed: 4.66 ft at 7:56AM Apr 21, 2024Observed: 4.79 ft at 8:00AM Apr 21, 2024Observed: 5.04 ft at 8:13AM Apr 21, 2024Observed: 5.31 ft at 8:30AM Apr 21, 2024Observed: 5.71 ft at 9:00AM Apr 21, 2024Observed: 5.96 ft at 9:28AM Apr 21, 2024Observed: 5.88 ft at 10:43AM Apr 21, 2024Observed: 5.71 ft at 11:00AM Apr 21, 2024Observed: 4.56 ft at 11:58AM Apr 21, 2024Observed: 4.14 ft at 12:15PM Apr 21, 2024Observed: 3.49 ft at 12:40PM Apr 21, 2024Observed: 3.07 ft at 12:56PM Apr 21, 2024Observed: 3.02 ft at 1:00PM Apr 21, 2024Observed: 2.67 ft at 1:13PM Apr 21, 2024Observed: 2.39 ft at 1:30PM Apr 21, 2024Observed: 2.42 ft at 2:00PM Apr 21, 2024Observed: 2.42 ft at 3:00PM Apr 21, 2024Observed: 2.42 ft at 4:00PM Apr 21, 2024Observed: 2.42 ft at 5:00PM Apr 21, 2024Observed: 3.54 ft at 6:38PM Apr 21, 2024Observed: 4.44 ft at 7:11PM Apr 21, 2024Observed: 4.86 ft at 7:28PM Apr 21, 2024Observed: 6.58 ft at 9:00PM Apr 21, 2024Observed: 6.83 ft at 10:00PM Apr 21, 2024Observed: 6.63 ft at 11:30PM Apr 21, 2024Observed: 5.26 ft at 12:28AM Apr 22, 2024Observed: 4.29 ft at 1:00AM Apr 22, 2024Observed: 3.94 ft at 1:10AM Apr 22, 2024Observed: 2.44 ft at 2:00AM Apr 22, 2024Observed: 2.34 ft at 3:00AM Apr 22, 2024Observed: 2.34 ft at 4:00AM Apr 22, 2024Observed: 2.34 ft at 5:00AM Apr 22, 2024Observed: 2.37 ft at 6:00AM Apr 22, 2024Observed: 2.69 ft at 7:16AM Apr 22, 2024Observed: 4.01 ft at 8:00AM Apr 22, 2024Observed: 4.41 ft at 8:15AM Apr 22, 2024Observed: 5.06 ft at 8:40AM Apr 22, 2024Observed: 5.44 ft at 8:56AM Apr 22, 2024Observed: 5.46 ft at 9:00AM Apr 22, 2024Observed: 5.66 ft at 9:13AM Apr 22, 2024Observed: 5.91 ft at 9:30AM Apr 22, 2024Observed: 6.58 ft at 11:00AM Apr 22, 2024Observed: 6.43 ft at 12:00PM Apr 22, 2024Observed: 6.23 ft at 12:16PM Apr 22, 2024Observed: 5.88 ft at 12:33PM Apr 22, 2024Observed: 4.81 ft at 1:15PM Apr 22, 2024Observed: 4.59 ft at 1:23PM Apr 22, 2024Observed: 4.34 ft at 1:31PM Apr 22, 2024Observed: 3.59 ft at 2:00PM Apr 22, 2024Observed: 2.87 ft at 2:30PM Apr 22, 2024Observed: 2.39 ft at 3:00PM Apr 22, 2024Observed: 2.39 ft at 4:00PM Apr 22, 2024Observed: 3.59 ft at 6:31PM Apr 22, 2024Observed: 3.84 ft at 6:40PM Apr 22, 2024Observed: 4.06 ft at 6:48PM Apr 22, 2024Observed: 4.39 ft at 7:00PM Apr 22, 2024Observed: 6.21 ft at 8:28PM Apr 22, 2024Observed: 6.46 ft at 8:45PM Apr 22, 2024Observed: 6.71 ft at 9:00PM Apr 22, 2024Observed: 6.91 ft at 9:43PM Apr 22, 2024Observed: 7.03 ft at 10:00PM Apr 22, 2024Observed: 7.16 ft at 11:00PM Apr 22, 2024Observed: 6.93 ft at 11:56PM Apr 22, 2024Observed: 6.73 ft at 12:13AM Apr 23, 2024Observed: 5.26 ft at 1:11AM Apr 23, 2024Observed: 4.99 ft at 1:20AM Apr 23, 2024Observed: 4.39 ft at 1:36AM Apr 23, 2024Observed: 3.84 ft at 1:53AM Apr 23, 2024Observed: 3.64 ft at 2:00AM Apr 23, 2024Observed: 2.34 ft at 2:43AM Apr 23, 2024Observed: 2.34 ft at 3:00AM Apr 23, 2024Observed: 2.34 ft at 4:00AM Apr 23, 2024Observed: 2.34 ft at 5:00AM Apr 23, 2024Observed: 2.34 ft at 6:00AM Apr 23, 2024Observed: 2.37 ft at 7:00AM Apr 23, 2024Observed: 2.59 ft at 7:51AM Apr 23, 2024Observed: 3.09 ft at 8:08AM Apr 23, 2024Observed: 4.66 ft at 8:58AM Apr 23, 2024Observed: 4.71 ft at 9:00AM Apr 23, 2024Observed: 5.06 ft at 9:15AM Apr 23, 2024Observed: 5.83 ft at 10:00AM Apr 23, 2024Observed: 6.03 ft at 10:13AM Apr 23, 2024Observed: 6.26 ft at 11:00AM Apr 23, 2024Observed: 6.23 ft at 12:00PM Apr 23, 2024Observed: 5.76 ft at 12:43PM Apr 23, 2024Observed: 5.04 ft at 1:16PM Apr 23, 2024Observed: 4.01 ft at 2:00PM Apr 23, 2024Observed: 3.62 ft at 2:15PM Apr 23, 2024Observed: 2.82 ft at 2:48PM Apr 23, 2024Observed: 2.32 ft at 3:13PM Apr 23, 2024Observed: 2.34 ft at 4:00PM Apr 23, 2024Observed: 2.34 ft at 5:00PM Apr 23, 2024Observed: 2.47 ft at 6:00PM Apr 23, 2024Observed: 3.29 ft at 6:41PM Apr 23, 2024Observed: 3.74 ft at 7:00PM Apr 23, 2024Observed: 4.11 ft at 7:15PM Apr 23, 2024Observed: 4.31 ft at 7:23PM Apr 23, 2024Observed: 4.51 ft at 7:31PM Apr 23, 2024Observed: 4.89 ft at 7:48PM Apr 23, 2024Observed: 5.36 ft at 8:13PM Apr 23, 2024Observed: 5.68 ft at 8:30PM Apr 23, 2024Observed: 6.03 ft at 8:46PM Apr 23, 2024Observed: 6.73 ft at 9:36PM Apr 23, 2024Observed: 6.86 ft at 10:00PM Apr 23, 2024Highest Observation: 7.18 ft at 11:00PM Apr 23, 2024Observed: 7.16 ft at 12:00AM Apr 24, 2024Observed: 5.71 ft at 1:21AM Apr 24, 2024Observed: 4.59 ft at 1:55AM Apr 24, 2024Observed: 4.01 ft at 2:11AM Apr 24, 2024Observed: 3.39 ft at 2:28AM Apr 24, 2024Observed: 3.14 ft at 2:36AM Apr 24, 2024Observed: 2.47 ft at 3:00AM Apr 24, 2024Observed: 2.34 ft at 4:00AM Apr 24, 2024Observed: 2.34 ft at 5:00AM Apr 24, 2024Observed: 2.37 ft at 6:00AM Apr 24, 2024Observed: 2.37 ft at 7:00AM Apr 24, 2024Observed: 3.17 ft at 9:08AM Apr 24, 2024Observed: 5.11 ft at 10:15AM Apr 24, 2024Observed: 5.59 ft at 10:48AM Apr 24, 2024Observed: 5.93 ft at 11:30AM Apr 24, 2024Observed: 6.01 ft at 12:00PM Apr 24, 2024Observed: 5.78 ft at 12:53PM Apr 24, 2024Observed: 5.34 ft at 1:35PM Apr 24, 2024Observed: 4.64 ft at 2:08PM Apr 24, 2024Observed: 3.44 ft at 2:58PM Apr 24, 2024Observed: 3.07 ft at 3:15PM Apr 24, 2024Observed: 2.69 ft at 3:31PM Apr 24, 2024Observed: 2.34 ft at 3:48PM Apr 24, 2024Observed: 2.34 ft at 5:00PM Apr 24, 2024Observed: 2.34 ft at 6:00PM Apr 24, 2024Observed: 3.29 ft at 7:08PM Apr 24, 2024Observed: 4.44 ft at 7:58PM Apr 24, 2024Observed: 4.49 ft at 8:00PM Apr 24, 2024Observed: 5.04 ft at 8:23PM Apr 24, 2024Observed: 6.63 ft at 10:00PM Apr 24, 2024Observed: 6.83 ft at 10:28PM Apr 24, 2024Observed: 7.01 ft at 11:00PM Apr 24, 2024Observed: 7.13 ft at 12:00AM Apr 25, 2024Observed: 6.76 ft at 1:00AM Apr 25, 2024Observed: 5.21 ft at 2:00AM Apr 25, 2024Observed: 4.71 ft at 2:13AM Apr 25, 2024Observed: 3.84 ft at 2:38AM Apr 25, 2024Observed: 3.29 ft at 2:55AM Apr 25, 2024Observed: 2.52 ft at 3:20AM Apr 25, 2024Observed: 2.32 ft at 3:36AM Apr 25, 2024Observed: 2.34 ft at 4:00AM Apr 25, 2024Observed: 2.34 ft at 5:00AM Apr 25, 2024Observed: 2.34 ft at 7:00AM Apr 25, 2024Observed: 2.37 ft at 8:00AM Apr 25, 2024PTBC1(plotting HGIRR) Graph Created (11:45AM Apr 25, 2024)ObservedLatest observed value: 2.37 ft at 8:00 AM PDT 25-Apr-2024. 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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