ALERT: December 13th update on the status of the nationwide data transmission error preventing stream gauge data collected at affected locations from being displayed on the Advanced Hydrologic Prediction Services (AHPS) webpages. As of 11/08/2018, The USGS has restored all impacted operational stream gauges to transmitting status. The status map of gauge outages from other agencies is here. This will be the last outage map posted as over 95% of the gauge outages have been restored. Local NWS offices will continue to monitor the remaining gauge outages.

Weather Forecast Office Brownsville, 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 (CST) Datum: Not Available Metadata

NOTE: Automated gauge readings are unavailable, readings taken manually. NOTE: Forecasts are not available for the Rio Grande at Anzalduas Reservior. Only observed stages are available for this point.

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Upstream Gauge

Flood Categories (in feet) Major Flood Stage: 121 Moderate Flood Stage: 116 Flood Stage: 112 Action Stage: 110 Low Stage (in feet): 0 Historic Crests (1) 111.44 ft on 07/20/2010 (2) 108.27 ft on 10/15/1971 (3) 107.97 ft on 09/23/1971 (4) 104.79 ft on 08/27/1976 (5) 103.81 ft on 09/20/1988 Show More Historic Crests (P): Preliminary values subject to further review. Recent Crests (1) 111.44 ft on 07/20/2010 (2) 88.85 ft on 09/12/1997 (3) 93.24 ft on 11/29/1996 (4) 86.45 ft on 09/23/1995 (5) 85.79 ft on 05/15/1995 Show More Recent Crests (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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104	Major flooding inside the levees - all irrigation pumps, livestock, and equipment should be removed from inside the Rio Grande river levees below Anzalduas Dam to below Retamal Dam
99	Moderate lowland flooding will cover much of the Rio Grande river flood plain inside the levees - irrigation pumps and equipment should be removed immediately from banks below Anzalduas Dam to below Retamal Dam
95	Minor lowland flooding will exceed the Rio Grande river banks in low sections inside the levees - livestock and pumps should be removed from the lowest flood prone areas

About This Location

Latitude: 26.130556° N, Longitude: 98.336111° W, Horizontal Datum: NAD83/WGS84 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 112 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 86.32 ft 198.32 ft 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 Inundation Mapping Locations

Additional Resources Area Hydrographs NWS Precipitation and River Forecasting AHPS Iframes for Developers Mobile iNWS for emergency management Flood Damage Costs/Fatalities in the US, 1903 - 2014 AHPS Web Brochure West Gulf River Forecast Center International Boundary and Water Commission Hydrometeorological Design Studies Center U.S. Drought Monitor U.S. Drought Portal

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 Brownsville Weather Forecast Office 20 South Vermillion Road Brownsville, TX 78521 (956) 504-1432 Ask Questions/Webmaster Page last modified: 21-Dec-2016 5:20 PM Disclaimer Credits Glossary Privacy Policy About Us Career Opportunities