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Weather Forecast Office Austin/San Antonio, TX

West Gulf River Forecast Center

Hydrograph

River at a Glance

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

NOTE: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time. NOTE: Graphical forecasts are not available for the Big Sandy Creek (TX) near Elgin. 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: 23 Moderate Flood Stage: 16 Flood Stage: 13 Action Stage: 8 Low Stage (in feet): -9999 Historic Crests (1) 27.62 ft on 10/31/2015 (P) (2) 21.73 ft on 05/27/2016 (P): Preliminary values subject to further review. Recent Crests (1) 21.73 ft on 05/27/2016 (2) 27.62 ft on 10/31/2015 (P) (P): Preliminary values subject to further review. 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
26	Major flooding reaches the Highway 95 bridge floor. Numerous roads and bridges are flooded and extremely dangerous. Livestock can be cut off and drowned in the flood plain.
23	Major flooding is well into the flood plain and can cut off and drown livestock. Numerous roads and bridges are severely flooded and dangerous. The bridge floor of Highway 95 is threatened.
20	Moderate lowland flooding well into the flood plain can cut off and drown livestock. Lowest roads and bridges are flooded and dangerous.
16	Moderate lowland flooding can cut off and drown livestock in the flood plain. Lowest roads and bridges are flooded and dangerous.
13	Minor lowland flooding in low areas of the flood plain causes no significant damage.
9	Flow exceeds the right bank.
8	Flow exceeds the left bank.

About This Location

Latitude: 30.265600° N, Longitude: 97.328100° W, Horizontal Datum: NAD83/WGS84 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 13 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 Rainfall Frequency Atlas Maps Weather Prediction Center Inundation Mapping Locations

Additional Resources Area Hydrographs NWS Precipitation and River Forecasting AHPS Iframes for Developers Mobile iNWS for emergency management West Gulf River Forecast Center Lower Colorado River Authority Guadalupe Blanco River Authority San Antonio River Authority Edwards Aquifer Authority Nueces River Authority International Boundary and Water Commission 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 Austin/San Antonio Weather Forecast Office 2090 Airport Road New Braunfels, TX 78130 (830) 629-0130 Ask Questions/Webmaster Page last modified: 2-Nov-2020 7:29 PM Disclaimer Credits Glossary Privacy Policy About Us Career Opportunities