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11/1/2024
WT Staff
 Got water questions? Give us a call at 877-52-WATER (877-529-2837), or email us at info@wtla.us
November 1, 2024 1030 am CDT
Tropical Disturbance 70% likelihood of developing within the week
Streamflow Situation from the network of USGS streamflow gauges in Louisiana
Overcast and 79 degrees with a high of 84 expected today for New Orleans, thunderstorms likely to start this afternoon with showers in the evening. National Hurricane Center continues to monitor the disturbance in the southwest Caribbean, the chance of development over the next 7 days upgraded from 40% to 50%. If this does develop further, we are looking at the next named system of the season, Patty. See the Tropical Weather Statement below.
Streamflows are up statewide Friday, monitoring sites reporting normal to above normal with three stations reporting much above normal. In the northwest, Region 1 remains below normal through Bossier Parish, the rated area extends all the way down the west side through Region 4 watershed to northwest Cameron Parish. Region 3 persists with extreme drought along the Bayou Macon - Tensas River valley. Severe drought continues to apply eastward to Mississippi River. To the west of the extreme drought area in Region 3, West Carroll and east Morehouse, Richland and Franklin Parishes remain unrated. 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. Region 3 Concordia Parish is rated moderate drought today. Regions 5 and 7 are still rated below normal through Acadia and Evangeline Parishes, extending to St Marys Parish on the coast. Tangipahoa Parish has gone to moderate drought overight, in the far east side of the state in Region 7, the east side of Washington and St Tammany Parish remains below normal along Pearl River channel.
As of this report, there are no high flows or active floods, no first percentile extreme low flows.
Tropical Weather Outlook issued by NWS National Hurricane Center Miami FL at 800 AM EDT Fri Nov 1 2024
Three disturbances on the radar this morning for the North Atlantic...Caribbean Sea and the Gulf of Mexico:
1. Southwestern Caribbean Sea:
The broad area of low pressure we have been tracking this week is likely to develop over the
southwestern Caribbean Sea during the next day or so. Gradual development is possible thereafter, and a tropical depression is
likely to form late this weekend or early next week while the system drifts generally northward or northwestward over the central or western Caribbean Sea. Regardless of development, locally heavy rains are possible over portions of the adjacent land areas of the western Caribbean.
* Formation chance through 48 hours...low...30 percent.
* Formation chance through 7 days...high...70 percent.
2. Northeastern Caribbean Sea and Greater Antilles:
A trough of low pressure located near Puerto Rico is producing a
large area of showers and thunderstorms over portions of the Greater
Antilles and the adjacent waters of the Atlantic and the
northeastern Caribbean. Slow development of this system is possible
during the next few days as it moves west-northwestward near the
Greater Antilles. After that time, this system is expected to be
absorbed into the low pressure area over the Caribbean. Regardless
of development, locally heavy rains are possible during the next
several days from the northern Leeward Islands westward across
Puerto Rico and Hispaniola to eastern Cuba and the southeastern
Bahamas.
* Formation chance through 48 hours...low...10 percent.
* Formation chance through 7 days...low...10 percent.
NEW ** 3. North Atlantic:
A storm-force non-tropical low pressure area located about 400 miles
west of the western Azores is producing limited shower activity.
Some subtropical development is possible while the low moves
generally eastward during the next few days. Additional information
on this system is available in High Seas Forecasts issued by the
National Weather Service.
* Formation chance through 48 hours...low...10 percent.
* Formation chance through 7 days...low...10 percent.
High Seas Forecasts issued by the National Weather Service can be found under AWIPS header NFDHSFAT1, WMO header FZNT01
KWBC, and online at Ocean Prediction Center, here.
Forecaster Kelly
WT HAB Tracker from the satellite monitoring program of National Centers for Coastal Ocean Science (NCCOS)
The latest image of Louisiana southeast water bodies is dated Oct 31, this image is mostly cloud obscured, captured at a surface wind speed of 3.5 mph. The prior image of Oct 30 was also snapped at wind speed under 4 mph showing new HAB activity appears in Lake Salvador dispersed HAB widespread throughout the entire water body at low concentration 100 thousand cells per ml. There are new HABs widespread in Bayou Rigoletts and the Pen at 300 thousand cells per ml. This image again shows lakewide HABs in Lake Verret, Lake Palourde, Avoca Island cutoff, Lac des Allemands, Bayou Fortier, Lake Boeuf and Black Bay, all of these appear at the concentration 600 to 700 thousand cells per ml. Lakes Pontchartrain and Maurepas are clear of HABs. See the latest satellite image of southeast LA water bodies, here.
Safe Drinking Water Advisories
St Martin Parish: Breaux Bridge is under a system-wide boil water advisory following a construction accident on Washington Street that cut a main line Wednesday. City of Breaux Bridge Water System serves a population of 8754 from a groundwater source in watershed Region 5. According to the EPA Enforcement and Compliance History, the last sanitary survey was conducted in July 2022, with significant deficiencies noted in Data Verification, Finished Water Storage, Pumps, Source and Treatment. An unaddressed non-compliance issue in 12 of the last 12 quarters, related to the treatment technique for groundwater.
Livingston Parish: Denham Springs issued a BWA Tuesday impacting the south side of Florida Boulevard from Gator Millworks to the intersection of Burgess Avenue and Florida Boulevard, including all sides of the streets in between. City of Denham Springs Water System serves a population of 25,725 residents from a groundwater source in watershed Region 7. From the EPA, nine issues of non-compliance with Safe Drinking Water Act over the last 12 quarters, no significant violations. The last sanitary survey was conducted Jan 2024, with minor deficiencies noted in Finished Water and Source.
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