The area of Japan that was hardest hit by Typhoon Talas, could get drenched by tropical storm Kulap.
Kulap is expected to move around Japan and hit Korea, but heavy rain is still likely to hit Shikoku and southwestern Honshu.
So far 54 people have been killed by Talas, and four of 12 dams made by landslides are about to burst. The landslide dams are blocking rivers in hard to reach areas. Officials hope to use specially designed buoys to monitor the water levels of the new lakes.