downgraded to a depression

これも復習です。「台風が熱帯性低気圧に変わった」はそのまま覚えておきましょう。理科で昔、風速が 17.2m/s以下になると台風が衰えたというと習ったことがあります。（Shou-VR*）

Typhoon passes off Japan's Pacific coast

The latest typhoon off Japan's Pacific coast has moved northward, and was downgraded to a depression on Saturday afternoon.

There is no longer any concern of heavy rain falling on the Izu Islands off Tokyo, but weather officials are cautioning against landslides, as soil has been loosened by downpours over the past few days.

http://www3.nhk.or.jp/nhkworld/english/news/20131026_24.html