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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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Printable Image About this graph Tabular Data (UTC) Tabular Data (PDT) Datum: Not Available Metadata

NOTE: Graphical forecasts are not available for the Sunnyvale East above Hwy 101. During times of high water, forecast crest information can be found in the text products.

Default Hydrograph Scale to Flood Categories   Return to Area Map

Flood Categories (in feet) Major Flood Stage: 9.5 Moderate Flood Stage: 8 Flood Stage: 6.5 Action Stage: 6 Low Stage (in feet): -9999 Historic Crests Currently none available. Recent Crests Currently none available. Low Water Records Currently none available.

Zoom Level:16 Legend FEMA Layer 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
9.6	Major Flooding...cont'...Flooding of businesses, homes and neighborhood strees occurs north of Evelyn Dr, extending north to Hwy 237, between Fair Oaks Ave to the west and Lawrence Exwy to the east. North of Hwy 237, flooding occurs on both sides of the channel, affecting Twin Creeks Ball Park and Baylands Park.
9.5	Major Flooding...Channel overtopping is possible upstream of Evelyn on the east bank, Wolfe Rd, along the east bank upstream of Duane, for a short reach on both banks between Tasman and US-101, and immediately upstream and downstream of Caribbean Dr, Flooding of major streets near the channel alignment, including Caribbean Dr, Tasman Dr, Fair Oaks Ave, Wolfe Rd, Ahwanee Ave, Evelyn Ave, Kifer Rd, and Central Expressway. Possible shallow sheet flow across Hwy 101.
8	Moderate Flooding: Levees immediately downstream and upstream of Caribbean Dr at risk of overtopping. Minimal flooding/poinding in Twin Creek Sports Complex and businesses south of Caribbean Dr. Area is also influenced by tides. Duane Ave to Wolfe Rd - east bank begins to overtop, causing localized ponding in the parking lot located east of the creek.
6.5	Minor Flooding: West levee begins to overtop immediately North of Caribbean Dr into drainage ditch.
6	Action Stage: Possible flooding upstream of Tasman Dr if vegetation is dense.

About This Location

Latitude: 37.394600° N, Longitude: 122.010400° W, Horizontal Datum: NAD83/WGS84 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 6.5 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

Resources

Hydrologic Resources Text Products Past Precipitation Forecast Precipitation River Forecast Centers River Stage Summary California Data Exchange Center Most Recent Scheduled Reservoir Releases USGS Real-time Data for California USGS - Western Region Geologic Information Inundation Mapping Locations

Additional Resources Area Hydrographs NWS Precipitation and River Forecasting AHPS Iframes for Developers Mobile iNWS for emergency management Snow Information

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 Ask Questions/Webmaster Page last modified: 2-Nov-2020 7:27 PM Disclaimer Credits Glossary Privacy Policy About Us Career Opportunities