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10/29/2024
WT Staff
 Got water questions? Give us a call at 877-52-WATER (877-529-2837), or email us at info@wtla.us
October 29, 2024 921 am CDT
Streamflow Situation from the network of USGS streamflow gauges in Louisiana
Morning fog for New Orleans, Slidell, Baton Rouge, sunny and warm with no rain in the forecast until Thursday. The much needed rain may foil the plans of some trick-or-treaters, at least those not going out as Mary Poppins or Captain Highliner. National Hurricane Center has been watching a disturbance in the southwest Caribbean that could develop into a low pressure system over the next week, a 40% chance. There is zero likelihood this will develop over the next 48 hours. If we do see a low pressure system over the weekend, we will once again be watching for the next named Tropical Storm of the 2024 season, this one will be called Patty. More to follow.
The drought relief we reported yesterday was short lived, twenty-four hours. Region 1 has hopped on the drought map overnight, rated below normal from Bossier Parish all the way down the west side to northwest Cameron Parish, bringing Sabine River channel in watershed Region back to the drought map. Region 3 still holds the most extreme drought rating through Bayou Macon - Tensas River valley, impacting the border of East and West Carroll, Madison and Richland, Tensas and Franklin Parishes, bordered by severe drought to the east running over the to the Mississippi River on the east state line. To the west of the extreme drought area in Region 3, West Carroll and east Morehouse, Richland and Franklin Parishes continue to stay off the drought map, these are unrated again today. Moderate drought picks up at west Morehouse and Union Parish, moderate drought continues down through Ouachita, Jackson, Winn, La Salle and north and the south of Catahoula Parish, the central area of Catahoula is unrated. Regions 5 and 7 are still rated below normal through Acadia and Evangeline Parishes, extending to St Marys Parish on the coast and Tangipahoa Parish in Region 7, the below normal status in Region 7 picks up along the Pearl River channel on the southeast state line.
As of this report, there are no high flows or active floods, no first percentile extreme low flows.
WT HAB Tracker from the satellite monitoring program of National Centers for Coastal Ocean Science (NCCOS)
The latest image of Louisiana southeast water bodies was snapped Oct 28 at a wind speed, 7.1 mph. This image shows the water bodies in a blackout state, we presume not to use this image for interpretation of HAB. The prior image taken Oct 27 at a low wind speed 3.2 mph clearly showed the lakewide HABs in several Louisiana water bodies. The hot spot in the southeast is Lake Bouef, running a lakewide HAB at extreme high 2 to 3 million cells per ml. Lac des Allemands and Bayou Fortier lakewide HABs remain at the high concentration 800 thousand cells per ml. According to the Program head for the NOAA early detection HAB monitoring program, wherever HABs are visible with the satellite imaging equipment, it is wise to assume there are cyanotoxins. State health authorities can then use this information to determine where to sample for the toxicity testing. Lakes Verret and Palourde lakewide bluegreen blooms remain at the high concentration 800 to 900 thousand cells per ml. Black Bay remains full of bluegreen at 700 to 800 thousand cells per ml. Lakes Pontchartrain and Maurepas appear clear of HAB again today. See the latest satellite image of southeast LA water bodies, here.
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