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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 · レベル2氾濫注意報

Level 2 Advisory (Flood) · Level 2

Prepare and check your route · official rules as of 2026-10-17

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Level 2Prepare and check your route

レベル2氾濫注意報

Level 2 Advisory (Flood)

Yellow, Alert Level 2 equivalent: conditions may worsen. Check the hazard map and how you would evacuate. Hazard: a named major river overflowing (the alert names the river).

What to do now

  1. Check the hazard map for your area and your evacuation route.
  2. Talk with family or travel companions about where to go.
  3. Watch for updates.
  4. Stay away from riverbanks and land near the named river.

Issued by: JMA with MLIT or the prefecture (river flood forecasts). 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.