Web Portal Changes: The Advanced Hydrologic Prediction Service (AHPS) hosted at https://water.weather.gov will be replaced by the National Water Prediction Service (NWPS), with a target of March 2024. Existing AHPS content and features will be preserved and expanded within NWPS.

Experimental National Water Center Products: Flood Inundation Mapping services are now available for 10% of the U.S. population. Please visit https://www.weather.gov/owp/operations for more information. The National Hydrologic Discussion, Area Hydrologic Discussion, Flood Hazard Outlook, and real-time geospatial services depicting River Forecast Center and National Water Model forecasts, continue to be accessible via the URL above, as described in the StoryMap here.

Weather Forecast Office Austin/San Antonio, TX

West Gulf River Forecast Center

Air Quality Alert

Hydrograph

River at a Glance

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Probability Information Chance of Exceeding Levels During Entire Period Weekly Chance of Exceeding Levels Short-term Probabilistic Guidance (Experimental)

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Printable Image About this graph Tabular Data (UTC) Tabular Data (CDT) Datum: NAVD88 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. Reliability of the Forecast: Based on unobstructed flow NOTE: Forecasts for the Blanco River at Fischer Store Rd near Fischer are issued routinely year-round.

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Upstream Gauge

Downstream Gauge

Flood Categories (in feet) Major Flood Stage: 38 Moderate Flood Stage: 23 Flood Stage: 17 Action Stage: 12 Low Stage (in feet): -9999 Historic Crests (1) 20.38 ft on 05/08/2019 (2) 14.02 ft on 10/14/2021 (3) 11.72 ft on 05/25/2020 (4) 11.69 ft on 06/02/2016 (5) 10.71 ft on 04/11/2017 Show More Historic Crests (P): Preliminary values subject to further review. Recent Crests (1) 3.71 ft on 02/03/2022 (P) (2) 14.02 ft on 10/14/2021 (3) 11.72 ft on 05/25/2020 (4) 20.38 ft on 05/08/2019 (5) 6.64 ft on 09/09/2018 (6) 10.71 ft on 04/11/2017 (7) 11.69 ft on 06/02/2016 (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

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50	Top of staff gauge located on USGS shelter. Water several feet over bridge.
45	Top of gaurdrail on brige approach at USGS gauge shelter.
43	Top of FM32 bridge.
41	Bridge floor. Bottom of staff gauge on USGS gauge shelter.
38	Water begins to enter highest homes along the river bank.
23	Lowest homes are threatened. Water begins to cut off secondary roadways near the river.
17	Roadways and low bridges along the river are flooded. Vehicles cannot pass. Livestock can be stranded.
12	Overbank conditions may cut off livestock in low areas.

About This Location

Latitude: 30.000583° N, Longitude: 98.200361° W, Horizontal Datum: NAD83/WGS84 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 17 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 917 934 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 Fischer Store Rd near Fischer

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