20 Oct 2024 | 09:23 AM UTC
Mexico: Tropical Depression Nadine tracking west-southwestward across eastern Chiapas State early Oct. 20 /update 3
TD Nadine tracking west-southwestward across Chiapas, Mexico, early Oct. 20 following landfall near Belize City, Belize, 11:00 CDT Oct. 19.
Tropical Depression Nadine is tracking west-southwestward across eastern Chiapas State, Mexico, early Oct. 20 following landfall near Belize City, Belize, around 11:00 CDT Oct. 19. As of 04:00 CDT, the system's center of circulation was approximately 135 km (85 miles) east of Tuxtla Gutierrez, Mexico.
Forecast models indicate that the storm will maintain its strength as it transitions into a post-tropical cyclone, turns to track southwestward across Chiapas State, and exits into the North Pacific Ocean the afternoon of Oct. 20. However, some uncertainty remains in the track and intensity forecast, and significant changes could occur over the coming hours and days.
As of early Oct. 20, authorities have discontinued all coastal watches and warnings. Widespread rainfall totaling 10-20 cm (4-8 inches), with isolated rainfall of more than 30 cm (12 inches), is forecast across northern Belize, northern Guatemala, and from Quintana Roo westward to Veracruz and Oaxaca states in southern Mexico through Oct. 22.
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.
Inclement weather could trigger localized business, transport, and utility disruptions and render some bridges or roadways impassable. Flight disruptions at regional airports and temporary port closures 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.
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.
