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Educational guide, not an alert service: no live data. Always follow official instructions from JMA, your municipality, police, fire and staff. In an emergency, protect yourself first. Full disclaimer

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Japan alert decoder · 熱中症特別警戒アラート

Special Heat Stroke Alert

Act now: protect yourself · official rules as of 2026-10-17

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Act now: protect yourself

熱中症特別警戒アラート

Special Heat Stroke Alert

Extreme heat (a WBGT of 35+ forecast at every station in the prefecture) that could seriously harm anyone's health.

What to do now

  1. Stay in air-conditioned places (local cooling shelters, クーリングシェルター, open).
  2. Drink water and take salt regularly; cancel strenuous outdoor plans.
  3. Check on elderly people and children.

Issued by: Ministry of the Environment (with JMA). Live status: JMA warnings map (English)JMA earthquake information (English)JMA tsunami information (English)

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Educational guide, not an alert service: no live data. Always follow official instructions from JMA, your municipality, police, fire and staff. In an emergency, protect yourself first.

Data as of 2026-10-17 from official JMA, Cabinet Office, Cabinet Secretariat (J-ALERT) and Ministry of the Environment pages, with official names from the JMA multilingual dictionary (2026-03-26). Not affiliated with JMA or any government agency.

Educational guide, not an alert service: no live data. Always follow official instructions from JMA, your municipality, police, fire and staff. In an emergency, protect yourself first. Data as of 2026-10-17 from official JMA, Cabinet Office, Cabinet Secretariat (J-ALERT) and Ministry of the Environment pages, with official names from the JMA multilingual dictionary (2026-03-26). Not affiliated with JMA or any government agency.