As it moved into the South China Sea the storm intensified while moving toward the west , and was categorized as a Severe Tropical Storm by the JMA .
Soon , Ketsana was upgraded to a Tropical Storm before passing over the Philippines .
As Ketsana moved into the South China Sea the storm intensified while moving toward the west , and was categorized as a Severe Tropical Storm by the JMA .
Soon , Ketsana was upgraded to a Tropical Storm before passing over the Philippines .