3/17/2024
WT Staff
HAPPENING NOW
Bayou Dorcheat, Bayou Bodcau, Pearl River flooding continues Sunday
Flooding in the USA - tracking NY, OH, GA and LA floods
Water news for Sunday, March 17, 2024 336 pm CDT
Streamflow Situation provisional data from USGS current streamflow monitors
Much above normal to high streamflows dominate the map of northwest and north central Louisiana late Sunday afternoon. Regions 4 and 5 continue below normal to much below normal, and east Louisiana watersheds Region 6, 7 and 8 see seasonal normal flows, including the standard flooding Pearl River.
Four active flood events continue in Louisiana Sunday. Bayou Dorcheat is more than six and a half feet above flood stage near Springhill. Bayou Bodcau is up over the last twenty four hours, more than a foot over flood stage near Shreveport after the thunderstorms have ended.
Pearl River runs three feet over near Bogalusa in Region 7. Downstream at Pearl River, the flooding continues at Pearl River, two feet four inches over.
One site in Region 3 is still running at extreme high the Little Corney Bayou near Lillie is over 99th percentile. There are no extreme low flows registering in the network today.
Check black tags for flood details, blue tag for 99th percentile high flow updated throughout the day.
Flooding in the USA
from USGS streamflow monitors provisional data
Thirty-eight sites mark flooding across the network of the USGS streamflow monitors in continental USA by late Sunday afternoon.
WT is tracking flooding in four states Sunday. Four stations flooding in Louisiana as reported above. One station records flooding in NY, Reynolds Channel is flooding at Point Lookout on the east end of Long Beach Barrier Island. One station in Ohio runs just above flood stage, the flood action beginning 1130 pm last night, Tiffin River is currently running a hair over and receding at Stryker.
Georgia leads in the flooding department with eleven stations ringing the flood alarms by Sunday afternoon. The current flooding event began on March 6 with heavy rain through north and central Georgia. Major rivers still flooding include the lower Flint River, heading for the Gulf of Mexico and the Ocmulgee, Oconee, Altamaha, Savannah, Ogeechee, Ohoopee Rivers 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 www.wtga.us
WaterToday New York www.wtny.us
WaterToday Ohio www.wtoh.us
Drought Map USGS 7-day average streamflow against seasonal average
Moderate drought in Region 4 has deepened into severe drought at southeast Vernon and northeast Beauregard, west Allen Parishes. In Region 5, the rating remains below normal, still sparing Evangeline and Acadia Parishes.
Central Morehouse Parish leaves the drought map Sunday, no more drought at all in the northwest and north central and no wonder, it has been raining like crazy and all the bayous are brimming full. Drought ratings are based on a 7-day running average streamflow, it takes a day or two of high streamflows to knock the dry out of the state map.
Drinking Water Advisories
Slidell issued a BWA impacting nearly 10,000 customers on the Cross Gates Water System after contractors installing cable struck potable water Thursday. Breaking buried water lines with construction equipment is a vector for microbiologic contamination. The BWA is required until the line can be sanitized and water tests safe. br>
Check the yellow tags on the map for details.
Harmful Algal Bloom HABs from National Centers for Coastal Ocean Science (NCCOS) satellite monitoring program
The latest image supplied by NCCOS was captured March 14 at a wind speed 6 mph. This image is mostly cloud obscured with some water showing HABs to report.
Black Bay HAB sticks out through a break in the coastal cloud mass, showing widespread HAB, 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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