06 Sep 2023 | 10:26 AM UTC
North Atlantic Ocean: Tropical Storm Lee tracking west-northwestward in the North Atlantic Ocean as of early Sept. 6
TS Lee tracking west-northwestward in the North Atlantic Ocean early Sept. 6. Impacts expected in northern Leeward Islands from Sept. 8.
Event
Tropical Storm Lee is tracking west-northwestward in the North Atlantic Ocean early Sept. 6. As of 05:00 AST, the system's center of circulation was approximately 2,040 km (1,265 miles) east-southeast of the northern Leeward Islands
Forecast models indicate that the storm will strengthen into a hurricane in the coming hours and will continue to rapidly intensify as it tracks generally northwestward across the Sargasso Sea Region of the North Atlantic Ocean, reaching Category 4 hurricane strength by Sept. 8. The system is expected maintain Category 4 strength as it passes well to the northwest of the northern Leeward Islands Sept. 9-10. Although the center of the system will likely pass more than 300 km (186 miles) northwest of Anguilla and Antigua and Barbuda, due to its strength impacts will likely be felt in the Leeward Islands and parts of Hispanola during its passing. Some uncertainty remains in the track and intensity forecast, and significant changes could occur over the coming days.
As of early Sept. 6, no coastal warnings or watches are in effect for the storm system. Authorities will likely issue new warnings throughout the system's progression in the coming days.
Swells generated by Lee are expected to reach portions of the Lesser Antilles by Sept. 8; these swells are likely to produce life-threatening surf and rip current conditions. Strong winds and heavy rainfall are also expected in parts of the northern Leeward Islands from Sept. 9.
Sustained heavy rainfall could trigger flooding in low-lying areas and those with easily overwhelmed drainage systems. If weather conditions prove hazardous, localized evacuations, flash flooding, and landslides are possible.
The inclement weather could trigger localized business, transport, and utility disruptions and render some bridges or roadways impassable. Flight disruptions at regional airports and temporary closures of ports are also possible. Stagnant pools of water during and after flooding may increase the incidence of insect- and waterborne diseases, such as dengue fever, cholera, and malaria. Exposure to raw sewage and other hazardous materials mixed with floodwaters poses a serious health threat.
Advice
Activate contingency plans in areas where officials forecast tropical storm conditions. Heed any evacuation orders that may be issued. Use extreme caution in low-lying coastal areas and near streams, creeks, and other waterways due to the potential for severe flooding and storm surge. Stockpile water, batteries, and other essentials in advance. Charge battery-powered devices when electricity is available; restrict the use of cellular phones to emergencies only. Power down mobile devices when not in use. Keep important documents and necessary medications in waterproof containers. Observe strict food and water precautions, as municipalities could issue boil-water advisories following flooding events. Take precautions against insect- and waterborne diseases in the coming weeks.
Plan accordingly for protracted commercial, transport, and logistics disruptions in areas in the path of the storm, especially if vital infrastructure is damaged. Seek updated information on road conditions before driving or routing shipments through areas where flooding has occurred. Confirm flights before checking out of hotels or driving to the airport; clearing passenger backlogs may take several days in some locations.
