13 Nov 2023 | 11:07 AM UTC
Western Pacific: Tropical Depression 17W tracking westward in the western Pacific Ocean as of Nov. 13
Tropical Depression 17W tracking westward in the western Pacific Ocean Nov. 13. Forecast to pass close to the north of Palau late Nov. 15.
Tropical Depression 17W is tracking westward over the western Pacific Nov. 13. As of 15:00 PWT, the system's center of circulation was approximately 185 km (115 miles) south-southeast of Yap.
Forecast models indicate that the storm will remain a depression as it briefly tracks southwestward late Nov. 13, before turning to track west-northwestward Nov. 14-15. The system is expected to strengthen into a tropical storm as it passes close to the north of Palau late Nov. 15-early Nov. 16. The storm is then expected to strengthen into a severe tropical storm as it tracks generally northwestward across the Philippine Sea toward the Philippines Nov. 16-18. The system is forecast to make landfall over Samar Island in Eastern Visayas Region Nov. 18. Some uncertainty remains in the track and intensity forecast, and significant changes could occur in the coming days.
As of Nov. 13, the US National Weather Service (NWS) has issued a tropical storm watch for Yap and Ngulu in Yap State and Kayangel and Koror in the Republic of Palau. Gusty winds, showers, thunderstorms, and rough seas are expected in the affected areas over the coming days. The Philippine Atmospheric, Geophysical, and Astronomical Services Administration (PAGASA) is also issuing bulletins regarding the system but has yet to issue any related warnings. Officials will likely update and extend the coverage of the relevant weather alerts over the coming days as the system progresses.
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. Exposure to raw sewage and other hazardous materials mixed with floodwaters poses a serious health threat.
Activate contingency plans in areas where officials forecast typhoon or 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.
