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1/30/2024
WT Staff
HAPPENING NOW
Mermentau starts flooding, Robert flooding ends
11 USGS stations currently flooding
Water news for Tuesday, January 30, 2024 - last updated 1126 am CST
Flood Update from USGS real-time streamflow monitoring stations around the eight watersheds of Louisiana
A new flood report in overnight for Mermentau, Mermentau River has breached flood stage as of 1130 pm last night currently running an inch over in Region 5. Updates in progress.More to follow.
Tangipahoa River has receded below flood stage as of 10 am this morning, no longer overflowing its channel at Robert in Region 7. Updates in progress, more to follow.
11 stations still recording active flooding as of Tuesday noon:
In Region 1, Bayou Bodcau is up another foot overnight, running close to five and a half feet over flood stage near Shreveport and still steadily rising. Bayou Dorcheat is flooding Day 8 near Springhill, still three feet over flood stage, trending slowly downward. Downstream at Minden station, Bayou Dorcheat flooding continues at nearly four feet over. Flow has leveled off and has recently begun to recede. At the slow rate of decline, flooding could take days to end at Minden.
Watershed Region 4 Sabine River is still flooding near Ruliff TX. Flooding began here at the stroke of midnight Friday night/Saturday morning. The flooding has been running at three-quarters of a foot over and holding there, now halfway through the fourth day and no change in sight. Calcasieu River is still overflowing at Glenmora, the flow trend is still slighty upward, no sign of the flooding ending anytime soon. Calcasieu River is not overflowing at the Oberlin station, resumes flooding further downstream at Kinder. Flow at Kinder is on a downward trend and looks like flooding could end in a matter of hours.
Region 5 Bayou Nezpique is still flooding at LA-190 near Basile, less than a foot over now, the trend is slightly downward, a very slow decline. Down LA-190 to the east, Bayou des Cannes stopped flooding around 11 pm last night. As mentioned at the start of this report, Mermentau River breached flood stage last night, running an inch over as of this update.
In watershed Region 7 northeast LA, Pearl River continues to overflow its channel at Bogalusa, still around two and a half feet over and possibly at peak flow. Not trending downward yet. Bogue Chitto is still flooding at Bush, distincly in declining trend Tuesday. Pearl River continues to run more than two and a half feet over flood stage at Pearl River, looking like it may be approaching peak flow.
Check black tags for flood, blue tags for 99th percentile flows with levels updated through the day.
Drought Map from USGS 7-day average streamflows compared to historic averages
Louisiana drought map remains completely blank since Sunday. With 11 stations still recording active flooding, the 7-day streamflow averages in all parts of LA are higher than the seasonal average values for each location, meaning that no part of the state shows on the USGS drought map.
Note WaterToday reports day-to-day changes recorded by USGS streamflow monitors on rivers and tributaries located in Louisiana, along with monitors upstream in the Mississippi River basin: Ohio, Georgia and southwest New York state. USGS creates a drought map from 7-day average streamflow readings, by comparing the average with the historic weekly normal flow value for each location. The drought ratings are below normal, moderate hydrologic drought, severe drought and extreme drought.
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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