Web Portal Changes:

• Attention: Technicians are currently working to bring Precipitation datasets back to full capability after the April 16 outage.
• NWPS - water.noaa.gov - Officially operational on Wednesday, March 27th, 8-9am EDT
• AHPS - water.weather.gov- Scheduled operations ends on Tuesday, May 28th, 2024 - the pages will automatically redirect to water.noaa.gov until May 28, 2025.
• Other Important URL changes - Service Change Notice 24-29 

Please visit https://www.weather.gov/owp/operations for more information.

Weather Forecast Office Shreveport, LA

West Gulf River Forecast Center

Flood Warning

Hydrograph

River at a Glance

Download

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

Auto Refresh: OFF

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. Reliability of the Forecast: Based on current and forecast river, weather and reservoir conditions NOTE: Forecasts for the Angelina River near Alto are issued as needed during times of high water, but are not routinely available.

Default Hydrograph Scale to Flood Categories   Return to Area Map

Upstream Gauge

Downstream Gauge

Flood Categories (in feet) Major Flood Stage: 33 Moderate Flood Stage: 31 Flood Stage: 29 Action Stage: 28.5 Low Stage (in feet): 0 Historic Crests (1) 33.20 ft on 03/31/1989 (2) 32.00 ft on 05/01/1908 (3) 31.55 ft on 07/09/2007 (4) 31.51 ft on 04/28/1966 (5) 31.50 ft on 01/01/1932 Show More Historic Crests (P): Preliminary values subject to further review. Recent Crests (1) 30.80 ft on 05/03/2016 (2) 31.04 ft on 03/13/2016 (3) 29.00 ft on 01/01/2016 (4) 29.70 ft on 03/13/2015 (5) 31.55 ft on 07/09/2007 Show More Recent Crests (P): Preliminary values subject to further review. Low Water Records (1) 9.30 ft on 08/13/2011 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

If you notice any errors in the below information, please contact our Webmaster
33	Homes and barns near the river are in danger of flooding. All flood preparation efforts should be rushed to completion.
32	Extensive and severe flooding of timber in the river bottoms can be expected. Ranchers that have cattle and equipment in the river bottoms should move them to higher ground.
31	Expect moderate to severe flooding of the river bottom. In addition, expect boat ramps to flood.
30.5	Lowland flooding will continue to slowly diminish.
29	Expect lowland flooding of the river bottom. Ranchers that have cattle and equipment near the river should move them to higher ground.

About This Location

Latitude: 31.671840° N, Longitude: 94.952710° W, Horizontal Datum: NAD83/WGS84 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 29 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 29 194.30 ft 223.3 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 Alto

Additional Information

During periods of possible very heavy rainfall, river forecasts may take into account precipitation amounts expected 30, 36, or even 48 hours into the future from the forecast issuance time.

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 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 Shreveport Weather Forecast Office 5655 Hollywood Avenue Shreveport, LA 71109 (318) 631-3669 Ask Questions/Webmaster Page last modified: 2-Nov-2020 7:29 PM Disclaimer Credits Glossary Privacy Policy About Us Career Opportunities