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2/19/2024
WT Staff
HAPPENING NOW
Pearl River two feet above flood stage near Bogalusa
Slidell BWA
Water news for Monday, February 19, 2024 - 829 am CST
Drinking Water Matters
Slidell is under boil water advisory since a water main break on Friday, impacting customers connecting at 100-1081 Rue Verand 1000-1140 Rue Corton, 1000-1150 Rue Latour, 1000-1150 Rue Orleans, 1000-1150 Rue Toulouse, 1000-1150 Rue Bordeaux, 1000-1150 Rue Calis, 1000-1150 Rue Limoges, 1100-1607 Rue Miramon, 1500-1614 Rue Lemans, 1130-1504 Gause Boulevard, 1100-1151 Rue Rochelle.
Flood Update from USGS real-time streamflow monitoring stations throughout Louisiana
Pearl River flow is increasing near Bogalusa, currently running more than two feet above flood stage. Flooding goes on downstream at Pearl River , a foot and four inches over flood stage.
Watershed Region 1, Bayou Dorcheat continues flooding near Springhill, still declining. Bayou Bodcau is running more than eight feet above flood stage Monday.
Watershed Region 4 Calcasieu River flow has begun to recede slightly, as of Monday, a foot and a half over flood stage near Glenmora. Sabine River has come down a couple of inches, currently seven inches above flood stage near Ruliff, TX.
Streamflows range from normal to much above normal throughout the state, one station in Region 4 registers much above normal and one station in Region 7 registers much below normal. Apart from the six locations with active flooding, no extreme high or low flow values rated against the average level for this day of water recording history are evident as of this update.
Check black tags on the map for flood levels, provisional data courtesy of the USGS streamflow sensors placed into LA rivers, bogues and bayous.
Drought Map from USGS 7-day average streamflows compared to historic averages
Louisiana drought map remains blank since Sunday, Jan 28.
HAB Update from National Centers for Coastal Ocean Science
The latest sat photo from NCCOS was taken Feb 15 at wind speed 2.4 mph. This image is mostly cloud covered, only the far east part of watershed eight is visible. The inland water bodies of watershed 8 have high concentration HAB 800 to 900 thousand cells per 100 ml.
The last perfectly clear image was captured Feb 14 at surface wind speed 7.5 mph, gives a clear view of all the southeast Louisiana water bodies, see the results on the HABs button to the right of the map, or bluegreen tag on the map.
Lake Pontchartrain, Lake Maurepas, Lac des Allemands, Bayou Fortier, Lake Cataouache, Lake Salvador appear HAB-free. Lake Lery appears as earlier in the week with widespread HAB in the east end 800 to 900 thousand cells per 100 ml.
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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