According to the Japan Meteorological Agency (JMA), Typhoon Nari (Typhoon Number 6) is expected to make landfall on eastern Japan between July 27 and 28. The typhoon could affect transportation or summer festivals to be held in some areas of Japan. Travelers visiting Japan are advised to monitor local weather reports, follow directions from local officials and take other appropriate actions as needed.
Latest information and updates can be found at following websites.
Typhoon tracking
Japan Meteorological Agency 
NHK World News
NHK (Japan Broadcasting Corporation) is Japan's only public broadcaster. NHK WORLD-JAPAN is NHK's international service delivering the latest information about Japan through TV, radio and the Internet.
Twitter @JapanSafeTravel
JNTO official Twitter account provides useful information on weather warnings, advisories and latest news of transportation services in case of natural disasters.
Twitter @JapanSafeTravel
Japan Visitor Hotline
Japan National Tourism Organization (JNTO) operates a visitor hotline 24 hours a day, 365 days a year. Call for tourist information or assistance in the case of accidents and emergencies. Support is available in English, Chinese, Korean and Japanese.
From Japan 050-3816-2787
From Overseas +81-50-3816-2787
Trains
Airport
New Chitose Airport
Sendai International Airport
Narita International Airport
Tokyo International Airport (Haneda)
Kansai International Airport
Chubu Centrair International Airport
Fukuoka Airport
Other Airports information is available here
National airlines and LCCs
Safety tips for travelers
Japan Tourism Agency's "Safety tips for travelers" contains links to other sites controlled by third-party information providers on weather information, weather warning & advisories, news, medical information, and list of embassies and consulates-generals in Japan.
https://www.jnto.go.jp/safety-tips/eng/
For safe travels in Japan
Japan Tourism Agency's "Guide for when you are feeling ill " provides medical institutions information, search function, and guideline. The website is available in English, Chinese, and Korean.
Tourist information centers throughout Japan certified by JNTO can offer practical information about airport facilities, flights, accommodation and transport. Please check the website below to find the information centers nearby.
https://tic.jnto.go.jp/
Further queries may be directed to JNTO Tourist Information Center (TIC) at 03-3201-3331 (or +81-3-3201-3331 from outside Japan) available 24/7 in English, Chinese, Korean and Japanese languages.
Navigation App
Download "Japan Official Travel App" for comprehensive route search.
Japan Official Travel App
