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3/19/2024
WT Staff
HAPPENING NOW
Lac Des Allemands, Bayou Fortier, Lake Salvador HABs
Union Parish BWA
Water news for Tuesday, March 19, 2024 updated 734 pm CDT
Drinking Water Advisories
Allen Parish: City of Oakdale announced a system-wide BWA today for a water service outage resulting from repairs to a water well. The advisory will be in effect after service is restored and remain until the water tests determine safe.
Union Parish Tri-Water System, Inc. issued a boil advisory for numerous roads in Union Parish yesterday due to a water outage. The advisory applies to all customers connecting on Game Reserve Rd, Ollie Dawkins Rd, Perkins Rd, Zion Watts Rd, Moshack Rd, Bird, Meridian Church Rd, Burch Rd, Andrews Rd, Johnny Baker Rd, Finch Rd, and Highway 348 from Conway Baptist Church to Game Reserve Road.
Check the yellow tags on the map for details.
Flood Watch provisional data from USGS streamflow monitors
Twenty-seven stream gauges record flood stage in continental USA today, down from thirty-seven this time yesterday.
WT tracks flooding and drinking water quality in four states. As of this report, no flooding is reported in the networks in New York or Ohio.
Louisiana picked up a fifth stream gauge reporting over flood stage, this being downstream of where Bayou Dorcheat has been flooding since March 8. Following heavy rains through southern Arkansas and northwest Louisiana last week, Bayou Dorcheat took on a lot of runoff, peaking more than seven feet above flood stage on March 17 around 145 am near Springhill. The surge of runoff passed through the channel fairly quickly, finding Minden twenty four hours later. Bayou Dorcheat began rising rapidly in the early morning hours of March 18, breaching flood stage there around 10 am. As of this report, Bayou Dorcheat is about halfway back down from its peak flow near Springhill and dropping, the flow near Minden is rising, beginning to slow the rate of rise, possibly looking to peak soon.
Bayou Bodcau continues to flood the area to the west of Bayou Dorcheat, running four feet over near Shreveport and rising. Flooding here had come within a foot of ending prior to the March 17 and 18 rain event. Pearl River is still flooding in watershed region 7 near Bogalusa, still flooding according to the Pearl River monitor downstream. along the east state line.
Georgia dropped one flood monitor overnight, today down to ten reports of flooding in the network. The current flood event in GA began on March 6 caused by heavy rain through north and central Georgia. Major rivers still flooding Monday include the Ocmulgee, Altamaha, Satilla, Savannah, Ogeechee and, Ohoopee Rivers, all heading for the Atlantic Ocean. Refer to black tags on the maps for updated flood flow levels, blue tags for 99th percentile high flows.
WaterToday Georgia
Drought Map USGS 7-day average streamflow against seasonal average
Severe drought has come off Region 4 overnight leaving the watershed with moderate drought rating. Region 5 remains below normal another day, with Evangeline and Acadia Parishes still unrated.
Harmful Algal Bloom HABs from National Centers for Coastal Ocean Science (NCCOS) satellite monitoring program
The latest image supplied by NCCOS was captured March 18 at a wind speed 20.4 mph. This image is mostly clear with new HAB activity to report.
Lac des Allemands, Bayou Fortier and Lake Salvador have HAB activity around the 100-200 thousand cells per 100 ml level.
Black Bay HAB is not visible in this image, completely cloud obscured. The previous image Mar 14 shows widespread HAB through a break in the coastal cloud bank, concentration dropped down to 100 to 200 thousand cells per 100 ml.
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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