CURRENT TROPICAL CYCLONES
Tropical Cyclone 24W (Etau)…is located approximately 240 NM south-southeast of Da Nang, Vietnam
Tropical Cyclone 25W (Vamco)…is located approximately 444 NM east of Manila, Philippines
Northeast PacificHere’s a link to the National Hurricane Center (NHC)
Western North Pacific
Tropical Cyclone 24W (Etau)
Here’s what the computer models show According to the JTWC, upper level analysis reveals a rapidly deteriorating environment, with cooling sea surface temperatures, and moderate to high 20-25 knot wind shear, offsetting the continued robust westward outflow. TS 24W will continue tracking west-southwestward through 12 hours, and is expected to make landfall along the south-central Vietnamese coast between 12-18 hours. As the system approaches the coastline, it will encounter cooler sea surface temperatures and increasing wind shear, which will continue the decoupling of the center, resulting in a slow weakening trend prior to landfall. After landfall, Etau will track inland and dissipate over central Cambodia by 36 hours.
Here’s what the computer models show According to the JTWC, TS 25 will move through an environment that is very favorable for intensification with warm sea surface temperatures, low 5-10 knot wind shear, and strong equatorward and moderate westward outflow. In the near term, TS Vamco will continue to track northwestward through 12 hours, before slowly turning onto a westward track by 36 hours. The system is forecast to cross Lamon Bay and make landfall along the central Luzon coast due east of Manila in 60 hours…before re-emerging into the open waters of the South China Sea by 72 hours. While the system has struggled to consolidate a well defined convective core, it is expected that the environment should allow for this consolidation within the next 6-12 hours, resulting in a relatively slow intensification through 12 hours. Thereafter, a combination of radial outflow, low wind shear, and passage over very warm waters will allow for steady intensification through 24 hours. A period of rapid intensification is forecast between 24-48 hours, as the system tracks through favorable environmental conditions. The forecast calls for a peak intensity of 105 knots at 48 hours, with additional strengthening possible prior to landfall. As the system crosses Luzon, interaction with the rugged terrain will induce significant weakening, with the system forecast to re-emerge into the South China Sea as a minimal typhoon. After 72 hours, the system will continue to track westward through 120 hours. Once re-emerging over the South China Sea, the system will re-intensify to a peak of 70 knots under marginally favorable environmental conditions.