The Philippines, Southeast China and northern Vietnam are on alert for the impending danger of a landfalling-typhoon.
More than a month has passed since a typhoon (Genevieve after a rare status change) roamed the waters of the western Pacific Basin, a streak that Tropical Depression 15W is expected to end.
The depression will gradually strengthen over the warm waters of the western Pacific through the weekend, likely reaching typhoon status before slamming into the Philippines' northern island of Luzon.
While landfall is projected for Sunday night (local time), torrential rain will overspread Luzon from east to west Saturday night through Monday. Rainfall amounts should generally be on the order of 100 to 200 millimeters (4 to 8 inches) with potentially 300 millimeters (a foot) in the mountains.
That amount of rain has seriously raised concerns for flooding and mudslides.
Winds strong enough to down trees, as well as cause power outages and some structural damage will also occur along the path of the future typhoon through Luzon. Rough surf will pound the coast, creating dangerous conditions for swimmers and boaters.
It should be stressed that even if Tropical Depression 15W falls just short of becoming a typhoon before reaching the Philippines, the impacts across Luzon will be the same.
While Manila will escape the strongest winds, the capital of the Philippines will still be at risk for flash flooding. As the center of the system tracks to the north then northwest of Manila, southwesterly winds will stream heavy rain into the city Sunday night through Monday night.
After slamming the Philippines and weakening some, the future typhoon will once again strengthen over the South China Sea as it takes aim at Southeast China and northern Vietnam.
Residents of Hainan Island, as well as Hong Kong and Zhanjiang, China, and Hanoi, Vietnam, are being put on alert for the danger of a landfalling-typhoon around Tuesday and Wednesday of next week.