Good day,
Please note the below and attached update received from the National Weather Service regarding a multi-hazard weather threat through midweek loosely associated with a Potential Tropical Cyclone One in the southwestern Gulf of Mexico..
Southeast Louisiana and Southern Mississippi partners -
Here is an update concerning the multi-hazard threats through midweek loosely associated with Potential Tropical Cyclone One in the southwestern Gulf of Mexico.
Changes from previous update:
· Portions of the coastal flood advisory have been upgraded to a coastal flood warning, including parts of Hancock County, St Tammany, Orleans, and St Bernard Parishes.
· A wind advisory has been issued for parts of southeast Louisiana and coastal Mississippi.
Overview:
Potential Tropical Cyclone One is forecast to become better organized over the next day or two, and is currently approaching northeast Mexico. As the system becomes better organized, it will indirectly result in multiple hazards across the local area today and tomorrow.
Potential Impacts:
Gusty Winds:
· Winds are forecast to be quite gusty in some areas today, especially south of the tidal lakes and near the coast.
· Sustained winds south of the lake could be in excess of 25 mph, and peak wind gusts could reach in excess of 40 mph
· The gusty winds could blow around loose outdoor items and lead to difficult driving conditions on some elevated roadways.
Coastal Flooding:
· Tides will rise above normal by later this morning and will peak during the high tide cycle Wednesday.
· Minor to moderate coastal flooding is expected with some roads potentially becoming covered with water or impassable, especially Wednesday.
· Some roads may become impassable in the Shoreline Park area around Bay St. Louis, and water may cover some lower sections of Hwy 1 between Port Fourchon and Grand Isle during the high tide Wednesday.
· Water levels are also expected to rise in the lake, but will lag the water levels on the coast by 1-2 days. Impacts are not likely to begin until late Wednesday, but a coastal flood advisory may be needed at some point.
The attached briefing highlights the threats associated with this system.
Additional Information and Resources:
Next Update and Contact Information:
The next update will be sent tomorrow morning. If you have any questions in the interim or need additional information, please do not hesitate to contact us. We can be reached by phone at 504-522-7330 or 985-649-0429. Use extension 4 to speak with a forecaster. Alternatively, you can reach us by email by replying to this message or sending an email to
sr-lix.forecasters@noaa.gov. Both methods will be delivered to the forecasters on shift at the office.
Regards,
Brigette Lim
Meteorologist
NWS New Orleans/Baton Rouge