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Weather Forecast Office Brownsville, TX

West Gulf River Forecast Center

Hydrograph

River at a Glance

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

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Printable Image About this graph Tabular Data (UTC) Tabular Data (CDT) Datum: NGVD29 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 Los Olmos Creek near Falfurrias are issued as needed during times of high water, but are not routinely available.

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Flood Categories (in feet) Major Flood Stage: 13 Moderate Flood Stage: 12 Flood Stage: 11 Action Stage: 5 Low Stage (in feet): -9999 Historic Crests (1) 15.00 ft on 09/13/1951 (2) 14.70 ft on 08/11/1980 (3) 12.66 ft on 09/13/1971 Show More Historic Crests (P): Preliminary values subject to further review. Recent Crests (1) 12.32 ft on 06/20/2018 (2) 11.19 ft on 06/20/2018 (3) 9.92 ft on 04/19/2010 Show More Recent Crests (P): Preliminary values subject to further review. Low Water Records Currently none available. For more information on your flood risk go to www.floodsmart.gov. Show FEMA's National Flood Hazard Layers FEMA's National Flood Hazard Layers not showing? Why aren't the FEMA National Flood Hazard Layers showing on the ESRI Map? Possible reasons: There are no FEMA National Flood Hazard Layers for the location which you are viewing on ESRI Maps. The FEMA Web Mapping Service (WMS) is down. Note: Your zoom level may have changed. ESRI's zoom levels must be between 14 and 16 to show National Flood Hazard layers.

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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13	Major flooding with flow 750 feet wide and into the broad prevailing flood plain
12	Flood water has reached the base of US HWY 281 bridge north of Falfurrias.
11	Minor flooding with lowland flooding 300 feet wide into the flood plain
10	Flow escapes from the Los Olmos drainage into the Palo Blanco drainage area
9	Flow is high enough to close FM 1418 as water is covering the bridge.
7	Minor lowland flooding reaches 120 feet wide into flood plain-persons vulnerable to lowland flooding should move equipment to higher ground

About This Location

Latitude: 27.264167° N, Longitude: 98.135556° W, Horizontal Datum: NAD27 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 11 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 29 116.58 ft 127.58 ft 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 Falfurrias

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 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: 2-Nov-2020 7:29 PM Disclaimer Credits Glossary Privacy Policy About Us Career Opportunities