S 8913/26

Survey (sounding) operation in area off Rio Mar bounded by given positions

Activeuntil 23 Nov 2026, 22:00 UTC (in 17 days)Received 25 Sept 2026, 12:01 UTC

Warning text

Positions open on the map

CHART 1713 SERVICO DE SONDAGEM 251100 UTC SET 26 A 232100 UTC NOV 26 POR RIO MAR IN AREA BOUND BY 23-58.36S 046-17.29W 23-58.37S 046-17.29W 23-58.39S 046-17.28W 23-58.40S 046-17.27W 23-58.41S 046-17.27W 23-58.44S 046-17.29W 23-58.44S 046-17.27W 23-58.45S 046-17.26W CANCEL LOCAL S 8901/26 CANCEL THIS WARNING 232200 UTC NOV 26.

Location map

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Analysis

Activeuntil 23 Nov 2026, 22:00 UTC (in 17 days)

A sounding survey (servico de sondagem) will be conducted in an area off Rio Mar. Activity is stated from 25 Sep 2026 1100 UTC until 23 Nov 2026 2100 UTC, with a self-cancel time 23 Nov 2026 2200 UTC. The warning cancels LOCAL S 8901/26.

Navigate with caution in the area and keep a sharp lookout for survey vessels and equipment.

Type: Survey operations · severity moderate
Feed: Survey operationsAll warnings of this kind on the map, or as an API feed.
Location: Por Rio Mar; area bounded by the listed positions
Validity: From 25 Sept 2026, 11:00 UTC
Until 23 Nov 2026, 22:00 UTC251100 UTC SET 26 A 232100 UTC NOV 26 ... CANCEL THIS WARNING 232200 UTC NOV 26.
Activity periods: 25 Sept 2026, 11:00 UTC - 23 Nov 2026, 21:00 UTC (Survey stated 25 Sep 2026 1100 UTC to 23 Nov 2026 2100 UTC)
Hazards: sounding survey, survey vessel/operations
Cancels: LOCAL S 8901/26
Charts: CHART 1713

Coast stations for this area

RCCMRCC BrazilBrazil184 NM from the area
DSCDSC Station Rio RadioMRCC BrazilBrazilMMSI 007100001HF156 NM from the area

Worked out automatically from the warning text on 27 Sept 2026, 20:21 UTC. It can be wrong: the official warning text is the authority.

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