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“台風15号は関東地方に上陸する見込みです。”
Typhoon No. 15 is expected to make landfall in the Kanto region.
The 15th typhoon of the year, named and tracked by the Japan Meteorological Agency.
台風15号の影響で、東京では大雨が降りました。
Heavy rain fell in Tokyo due to Typhoon No. 15.
気象庁は台風15号の進路を注意深く監視しています。
The Japan Meteorological Agency is closely monitoring the path of Typhoon No. 15.
台風 (たいふう) means 'typhoon,' and 15号 (じゅうごごう) means 'No. 15.' The numbering follows the chronological order of typhoons in a given year.
In Japan, typhoons are numbered sequentially each year starting from 1. Unlike in some other countries, they are not given personal names unless they are particularly destructive. The numbering helps the public track and prepare for each storm systematically.
Use 台風15号 in formal contexts such as news reports, weather forecasts, or official announcements. Avoid using it in casual conversation unless referring to a specific typhoon being discussed in the news.
台風 (たいふう) is derived from the Chinese 颱風 (táifēng), which itself comes from the Greek 'typhōn' (τύφων) meaning 'whirlwind.' The Japanese numbering system (号) is used to sequentially identify typhoons each year.
台風15号 is a formal and widely used term in Japanese weather reports and news. It is not idiomatic but follows a standard meteorological naming convention. The term is typically used in official contexts rather than casual conversation.