NAVAREA XI Navigational Warnings

NAVAREA XI covers the waters off East Asia, the South China Sea and Japan. This page lists the in-force navigational warnings Helm.Warning currently holds for the region, as broadcast by the area coordinator, the Japan Coast Guard (JCG), under the World-Wide Navigational Warning Service (WWNWS).

View NAVAREA XI on the live map

In-force warnings: — · Database last updated: —

In-force warnings

Each entry expands to the complete original bulletin text. Warnings whose coordinates could not be plotted on the map are still listed here in full.

About NAVAREA XI

NAVAREA XI is one of the 21 ocean regions of the World-Wide Navigational Warning Service (WWNWS), coordinated jointly by the International Maritime Organization (IMO) and the International Hydrographic Organization (IHO). The designated area coordinator is the Japan Coast Guard (JCG), which issues and cancels the region’s navigational warnings. Helm.Warning aggregates these broadcasts daily from its verified official feed and plots them on the live map.

Ingestion status: Automated ingestion — verified official feed · Official source: Japan Coast Guard (Kaiho)

Helm.Warning is a convenience copy of these broadcasts, not an official source of Maritime Safety Information. Always verify against official channels (NAVTEX, Inmarsat SafetyNET) as required by SOLAS — see the about and disclaimer page for the full safety notice.

All NAVAREA regions

Situational awareness only. Not a substitute for GMDSS, NAVTEX or SafetyNET broadcasts. Official broadcasts and the Master’s judgment always take priority.