National Weather Service Advanced Hydrologic Prediction Service

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Weather Forecast Office San Francisco Bay Area, CA

California Nevada River Forecast Center

Hydrograph

River at a Glance

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About this graph

Tabular Data (UTC)

Tabular Data (PDT)

Datum: Not Available

Metadata

NOTE: Graphical forecasts are not available for the San Gregorio Creek at San Gregorio. During times of high water, forecast crest information can be found in the text products.

Return to Area Map

Flood Categories (in feet)

Major Flood Stage:	25
Moderate Flood Stage:	21
Flood Stage:	17.7
Action Stage:	15
Low Stage (in feet):	-9999

Historic Crests
Currently none available.

Recent Crests
Currently none available.

Low Water Records
Currently none available.

Zoom Level:14

	Gauge Location	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

If you notice any errors in the below information, please contact our Webmaster
25	Major flood stage. Stage Road at San Gregorio Creek flooded and adjacent floodplain properties under 4 or more feet of water.
21	Moderate flood stage. Adjacent floodplain under several feet of water. Stage Road crossing is backwatered.
17.7	Minor flood stage. Flood waters inundate floodplain upstream of Stage Road crossing, mainly on left bank side (as looking downstream). NWS will issue a Flash Flood Warning if not yet already issued.
15	Monitor stage. Water is 2.7 feet below adjacent floodplain properties. NWS may issue a Flash Flood Watch if not yet already issued.

About This Location

Latitude: 37.325833° N, Longitude: 122.385600° W, Horizontal Datum: NAD83/WGS84

River Stage Reference Frame	Gauge Height	Flood Stage	Uses
NWS stage	0 ft	17.7 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

Current/Historical Observations:

U.S. Geological Survey (USGS) Data and Site Info for San Gregorio

Resources

Hydrologic Resources

Additional Resources

Collaborative Agencies

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: 1-Mar-2019 12:32 AM

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