NAVAREA X - AUSCOAST WARNING 352/26

SÉCURITÉ

Issued: 4 Nov 2026, 10:23Last modified: 5 Nov 2026, 14:42

analysis

Active

Underwater operations by Seven Sisters off north-western Australia

Special purpose vessel SEVEN SISTERS (C6AA4, MMSI 311073700) is conducting underwater operations in a rectangular area defined in the message. A clearance of 1.0 NM is requested around the working area. No times or contact details are given.

Keep clear by 1.0 NM and navigate with caution in vicinity of the operations.

Type: Survey operations · severity moderate
Feed: Survey operationsAll warnings of this kind on the map (contributors), or as an API feed: /api/v2/feeds/survey/
Location: area bounded by positions given in message (off north-western Australia)
Hazards: underwater operations
Keep clear: 1 NM1.0NM CLEARANCE REQUESTED.

Vessels involved

SEVEN SISTERS · special purpose vessel conducting underwater operations · call sign C6AA4 · MMSI 311073700

Generated automatically from the warning text on 04 Nov 2026, 10:47 UTC. It can be wrong: the original warning below is the authoritative text.

Keywords

OperationsUNDERWATER OPERATIONS
Geometry refsbounded, polygon
Geometry phrasesarea bounded, bounded by

Message content

SPECIAL PURPOSE VESSEL SEVEN SISTERS / C6AA4 / 311073700 CONDUCTING UNDERWATER OPERATIONS IN AN AREA BOUNDED BY 19-38.85S TO 19 44.89S AND 115-43.84E TO 115 56.08E 1.0NM CLEARANCE REQUESTED.

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