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3/23/2024
WT Staff
WEEKEND WATER REPORT
Pearl, Sabine Rivers continue flooding
NWS: Severe storms coming Monday
Water news for Saturday, March 23, 2024 updated 1208 pm CDT
National Weather Service Hazardous Weather Outlook issued 620 am CDT March 23
Increasing clouds early on Sunday, but showers and thunderstorms will take all day before spreading into our I-30 corridor in the evening and overnight. Then a Slight Risk for severe storms builds
with daytime heating on Monday ahead of the cold front. A line of thunderstorms will shift through the ArkLaTex during the afternoon and evening with another stronger upper level disturbance. The potential for severe thunderstorms in the line will exist Monday afternoon and evening for eastern Texas, southern Arkansas and northern Louisiana with damaging winds, isolated tornadoes and locally heavy rainfall possible, along with some minor flooding.
Impacting Union-Caddo-Bossier-Webster-Claiborne-Lincoln-De Soto-
Red River-Bienville-Jackson-Ouachita-Sabine-Natchitoches-Winn-Grant-
Caldwell-La Salle Parishes
Flood Tracker provisional data from USGS streamflow monitors
Twenty streamflow gauges record flood stage in continental USA Saturday, down from twenty-four this time yesterday.
WT tracks flooding at twelve of these locations, six located in Georgia and six in Louisiana. As of this report, NY and OH are not seeing active flooding in the USGS network. More to follow as the rain falls on NYC and flood watch in effect.
Louisiana records flooding on the same six monitors Saturday. In Region 1 watershed in the northwest, Bayou Dorcheat runs two feet over flood stage near Springhill, a foot and inches over flood stage downstream at Minden, trending down. Bayou Bodcau has levelled off overnight, still six feet above flood stage near Shreveport. In Region 4 in the southwest, Sabine River runs six inches above flood stage according to the monitor located near Ruliff, TX. In the east, Pearl River holds a steady two and a half feet above flood stage spreading out at 331800 cubic feet per second near Bogalusa, more than two and a half feet over downstream at the municipality of Pearl River.
See the black tags on the map for updated flood flow values.
Two streamflow gauges have begun lighting up the flood map Saturday afternoon, reaching 99th percentile flows on Long Island, NY, currently under NWS Flood Watch. Valley Stream is flowing high at Valley Stream, running 1.82 ft deep at 42.9 cubic feet per second. A tributary to Bellmore Creek is flowing 99th percentile at Bellmore, running 2.64 ft deep at 16.6 cubic feet per second. These monitoring stations do not have established flood stages, so we will not know when overflow occurs. Local weather spotters are encouraged to report to NWS.
See the blue tags on the map for updated high flow flow values here WaterToday New York
Two rivers continue to flood in south Georgia Saturday. Altamaha River began to show the first signs of slowing down at its top end Thursday, receding half a foot overnight. As of this report, the flood level measured near Charlotteville is just over half a foot above flood stage. Downstream monitors near Baxley, at Doctortown and at Everett City record water levels from half a foot to three feet over. Flow volume provisional data captures the reduced volume Saturday, from 33 thousand Friday down to 28600 cubic feet per second near Charlotteville, the bulk of flood water has shifted downstream toward the outlet, still above 60 thousand cubic feet per second moving through Everett City to the outlet at Brunswick. Savannah River is still chugging along a foot and a half above flood stage near Milhaven and four feet out of the channel near Cylo.
See black tags on the map for flood levels updated daily and a running timeline of the March 2024 flood event here: WaterToday Georgia
Drinking Water Advisories
St Landry Parish - The Village of Washington announced a system wide BWA this week Tuesday.
Check the yellow tags on the map for details.
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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