S 8874/26
SÉCURITÉDiver operations near Ilha Grande, position 23-14.13S 044-03.30W, 20 Sep-20 Oct
No longer in forceReceived 20 Sept 2026, 09:21 UTCArchived 21 Oct 2026, 11:42 UTC
Warning text
Positions open on the mapILHA GRANDE VICINITY
CHART 1620
UNDERWATER OPERATIONS DIVERS WORKING
20 SEP 26 TO 20 OCT 26
08:00 TO 21:00
BY BIG JOHN VI AND REI ALBERTO
IN 23-14.13S 044-03.30W
CANCEL THIS WARNING 202200 UTC OCT 26.
Location map
Open in the full mapAnalysis
No longer in forceUnderwater diver operations are taking place in the vicinity of Ilha Grande by vessels BIG JOHN VI and REI ALBERTO. Activity is scheduled daily from 08:00 to 21:00 between 20 Sep 2026 and 20 Oct 2026. The warning is self-cancelling at 202200 UTC 20 Oct 2026.
Keep well clear, navigate with caution and reduce speed to minimise wake near the position of operations.
- Type
- Offshore operations · severity moderate
- Feed
- Offshore works, rigs and towingAll warnings of this kind on the map, or as an API feed.
- Location
- Ilha Grande vicinity
- Validity
- From 20 Sept 2026, 08:00 UTC
Until 20 Oct 2026, 22:00 UTC20 SEP 26 TO 20 OCT 26 08:00 TO 21:00 ... CANCEL THIS WARNING 202200 UTC OCT 26. - Activity periods
- 20 Sept 2026, 08:00 UTC - 20 Oct 2026, 21:00 UTC (daily 08:00-21:00 UTC from 20 Sep 2026 to 20 Oct 2026)
- Hazards
- underwater operations, divers in the water, work vessels on scene
- Charts
- 1620
Vessels involved
- BIG JOHN VI · work/diver support vesselOn AISBrazilseen 18 min ago
- REI ALBERTO · work/diver support vessel
Coast stations for this area
- RCCMRCC BrazilBrazil53 NM from the area
- DSCDSC Station Rio RadioMRCC BrazilBrazilMMSI 007100001HF26 NM from the area
Worked out automatically from the warning text on 27 Sept 2026, 21:38 UTC. It can be wrong: the official warning text is the authority.