On August 29, a low pressure area was develop northeast of Guam. On the next day, it intensified into Tropical Depression and continued to intensified into a tropical storm and named Haishen. In the same day, Haishen became a severe tropical storm. On September 3, it became a Typhoon.
On September 4, when it enters the Philippine Area of Responsibility (PAR), PAGASA named it Typhoon Kristine. but later that day, Typhoon Kristine left the PAR.
As Haishen continued its northward track towards the Japan it continued to weaken. Haishen made landfall in South Korea on September 7.