The storm is expected to make landfall in central Vietnam early Wednesday, potentially becoming the most powerful storm to impact the nation this year.
It is forecast to affect Da Nang and six neighbor provinces along the central region, prompting plans to evacuate 1.2 million people. The wind speed near the eye of the storm when it lands is predicted to be around 130-165 kph.
Between October 6 and 25, central Vietnam had already suffered extensive flooding and landslides triggered by torrential downpours, tropical storms and depressions.
At least 130 people have died. The dead include 35 members of two different military teams who had come to find and rescue landslide victims in Thua Thien-Hue Province and assist neighborhoods hit by landslides in Quang Tri Province.