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5/13/2024
WT Staff
HAPPENING NOW
Sabine River flooding takes an upward turn
NWS: Flood Watch, flash flooding possible
Water news for Monday, May 13, 2024 923 am CDT
National Weather Service Flood Watch in effect - update 338 am CDT May 13
FLOOD WATCH REMAINS IN EFFECT THROUGH TUESDAY MORNING... Flooding caused by excessive rainfall continues to be possible for portions of southeast Louisiana with excessive runoff possibly resulting in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas.
Multiple rounds of storms will be moving through the area throughout the next 2 days. 3 to 5 inches of rainfall with locally higher amounts in excess of 6 inches will be possible tonight through Tuesday morning, enhancing the flash flooding threat.
Monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. Check for updates here at www.weather.gov
Impacting Pointe Coupee-West Feliciana-East Feliciana-St. Helena-Washington-
Iberville-West Baton Rouge-East Baton Rouge-Northern Tangipahoa-Southeast St. Tammany-Northern St. Tammany-Southwestern St.Tammany-Central Tangipahoa-Lower Tangipahoa-Northern Livingston-Southern Livingston-Western Ascension-Eastern Ascension Parishes
WT USA Flows and Flood Tracker provisional data from the network of USGS streamflow monitors
Sixty two streamflow gauges record flooding in the USA Monday morning, up from Fifty-seven Sunday. WT tracks the nation's most common natural disaster dynamics through the states of New York, Ohio, Georgia and Louisiana. As of this report, five sites record flooding on the network, all in Louisiana.
Louisiana posts the same five stations running above flood stage again going into Monday as reported the past week. Region 4 watershed Sabine River is up overnight, running more than two feet above the channel near Bon Wier. Downstream near Ruliff, the flooding continues a foot and a half above the channel. Calcasieu River is also up, more than a foot over flood stage near Glenmora. In Region 1, Bayou Dorcheat continues on a declining flow trend, flowing nine inches over flood stage near Springhill. Bayou Bodcau has maintained a level four and a half feet above the basin near Shreveport for the last twenty four hours. See black tags on the map to the right.
NWS is calling for more thunderstorm and rain activity in central Georgia state this week with potential for localized heavy rains and flooding where the ground is already saturated. As of this report, there are no active floods registering on the network. Coosawattee River records 99th percentile flow near Carters with a declining flow trend.
See the blue tag for high flow 99th percentile volume updated daily on the map here.
As many drinking water facilities are supplied from surface water reservoirs, the streamflow situation is pertinent to both drinking water supply and quality. High flows can stir up sediment and cause turbidity in the reservoirs, requiring additional treatments to render the water potable. Low flow volume is linked to warmer temperatures in the reservoir and can be an issue for water quality where HABs are present. WT tracks streamflow trends with an eye to the impacts on drinking water supply and quality in each of the state's watersheds. Check the watershed layer on the map to see the direction of flow and streamflows that may be impacting drinking water today.
USGS Provisional Data Statement
Data are provisional and subject to revision until they have been thoroughly reviewed and received final approval. Current condition data relayed by satellite or other telemetry are automatically screened to not display improbable values until they can be verified.
Provisional data may be inaccurate due to instrument malfunctions or physical changes at the measurement site. Subsequent review based on field inspections and measurements may result in significant revisions to the data.
Data users are cautioned to consider carefully the provisional nature of the information before using it for decisions that concern personal or public safety or the conduct of business that involves substantial monetary or operational consequences. Information concerning the accuracy and appropriate uses of these data or concerning other hydrologic data may be obtained from the USGS.
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