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🌧️ Rainfall Forecast (Next 24 Hours)
General Situation
From western to eastern Japan, warm and moist air is flowing in around the edge of a typhoon and the Pacific High. This will make the atmosphere very unstable through Friday, September 5. Even areas far from the typhoon may experience very heavy rain with thunder. A stationary front will also extend into northern Japan, bringing stronger rainfall there.
⏰ Expected Rainfall by Friday Evening (max amounts)
- Tokai: 300 mm
- Kinki & Shikoku: 250 mm
- Kanto-Koshin & Northern Kyushu: 200 mm
- Tohoku: 150 mm
- Chugoku & Southern Kyushu: 120 mm
- Hokuriku: 100 mm
⚡ Risk of Linear Rainbands (Senjo-Kousuitai)
If linear rainbands form, local rainfall could increase even more, raising the risk of flooding and landslides.
Areas and Timeframes at Higher Risk
- Southern Kyushu (Miyazaki): until late Thu (Sep 4) night
- Northern Kyushu (Oita): until early Fri (Sep 5) morning
- Kinki (Wakayama): Fri (Sep 5) early morning to before noon
- Tohoku (Iwate, Miyagi): Fri (Sep 5) dawn to before noon
- Shikoku (Tokushima, Ehime, Kochi): until Fri (Sep 5) late morning
- Tokai (Gifu, Shizuoka, Aichi, Mie): Thu (Sep 4) evening to Fri (Sep 5) early afternoon
🚉 Impact on Public Transportation
- Railways: Delays and possible suspensions are expected, especially in western and central Japan (Kyushu, Shikoku, Kinki, and Tokai regions) where heavy rain and landslides could affect train tracks.
- Air travel: Flight cancellations or delays are likely at major airports such as Fukuoka, Kansai, Chubu (Nagoya), and Haneda, depending on wind and rainfall conditions.
- Highways & local roads: Flooding, landslides, and poor visibility may cause closures or traffic restrictions. Drivers should avoid unnecessary travel.
If Shinkansen (bullet train) service is suspended and you already have a reserved seat:
- Full Refund – You can receive a full refund at any JR ticket counter (Midori no Madoguchi) or via the method you purchased (online/app).
- Change to Another Train – If trains are running later the same day, you can use the same ticket for a different service (no extra fee).
- Next-Day Use – Tickets can be used the following day if trains resume.
- Hotel/Alternative Transport – If long suspensions occur, passengers must arrange their own accommodation or buses; JR does not provide hotels.
- Keep the Ticket – Always keep your unused ticket to claim a refund or rebooking.
Travelers are strongly advised to check real-time updates on the JR Central, JR West, or JR East websites/apps before heading to the station.
⚠️ Safety Warnings
- Be on high alert for landslides, flooding in low-lying areas, and river overflows from western to eastern Japan through Friday.
- Also watch out for strong winds, high waves, lightning, and tornado-like gusts.
- If you see signs of developing storm clouds, move indoors and secure your safety immediately.
If you have any questions about this typhoon or weather forecast, please contact me anytime on DM in Instgram