Ship-name archive · official navigational warnings

Sistac Vitoria

2 public warnings use this name, 2026-09-30 to 2026-10-02. The notices cover South Atlantic Ocean. Compare what each source reports, how its wording changes, and which identifiers are actually attached to the name.

These are mentions of a name. They can describe vessel operations, hazards or different ships using the same name.

What the reports establish

1 warning is recorded as in force. 1 has been cancelled. Cancellation concerns the notice; it does not establish the vessel’s current condition or a successful recovery.

First dated report in this archive

Issued 2026-09-30 01:05Z

Underwater operations in progress until 120259Z oct by M/V sistac vitoria in 22-32.82S 040-04.05W

Surveys · South Atlantic · Brazil

HYDROLANT 1933/26

Latest dated report in this archive

Issued 2026-10-02 08:30Z

Underwater operations in progress until 110300Z oct by M/V sistac vitoria in 22-32.81S 040-04.04W

Surveys · South Atlantic · Brazil

HYDROLANT 1961/26

Which vessel does this name identify?

No IMO or MMSI can be confidently attached to this name from the displayed warnings. A matching name alone cannot establish that these reports concern the same vessel.

Name styles in these reports: M/V. Interpreted vessel types: merchant vessel.

Warning record and geographic coverage

Dated report span: 2.3 days
Warning days covered: 1.4 days
Separate warning periods: 2
Warnings with a map location: 2 / 2

Warning days combine recorded issue-to-cancellation periods, counting overlapping days once. In-force notices extend to the calculation time. These periods describe the warning record, not days at sea or the duration of a vessel incident.

South Atlantic Ocean warning history

What changed between reports

Compare adjacent dated warnings. Changes can describe a new operation or a different vessel with the same name. Distances compare warning map centers; they do not measure vessel travel. Source statements retain their wording, with numbering and spacing normalized.

2026-10-02Source wording changedUNDERWATER OPERATIONS IN PROGRESS UNTIL 110300Z OCT BY M/V SISTAC VITORIA IN 22-32.81S 040-04.04W

HYDROLANT 1933/26 HYDROLANT 1961/26 · 2.3 days between issue dates

Warning type: Surveys (unchanged)
Area: South Atlantic · Brazil · South Atlantic Ocean (unchanged)
Map centers: 0 nautical miles apart

Wording in the later-listed report

UNDERWATER OPERATIONS IN PROGRESS UNTIL 110300Z OCT BY M/V SISTAC VITORIA IN 22-32.81S 040-04.04W

Wording only in the earlier-listed report

UNDERWATER OPERATIONS IN PROGRESS UNTIL 120259Z OCT BY M/V SISTAC VITORIA IN 22-32.82S 040-04.05W

Map center of HYDROLANT 1961/26, issued 2026-10-02 08:30Z: -22.547, -40.067. The center may represent an operation area, route or hazard. It is not a confirmed vessel position. Issue time is the warning publication time; any observation time must be read in the original message.

Reading these reports

Underwater operations: Divers or remotely operated vehicles are working below a vessel that cannot easily move out of the way.
Date-time group (DTG): A compact UTC timestamp — day, hour and minute followed by Z — such as 201500Z for the 20th at 15:00 UTC.
Position (degrees and minutes): How warnings write positions: degrees, a hyphen, then minutes, with N/S and E/W — 49-40.8N 003-43.8W.
Wide berth requested: Keep well clear — or, when a distance is given ("TWO MILE BERTH REQUESTED"), at least that far away.
CANCEL THIS MSG: The warning's own expiry: a line telling the reader when the message cancels itself.

All warning terms →

Source warnings · 2

Oldest dated warning first; undated messages follow. Open each entry to read its complete original text.

1
SurveysHYDROLANT 1933/26Issued 2026-09-30 01:05Z
Underwater operations in progress until 120259Z oct by M/V sistac vitoria in 22-32.82S 040-04.05W
South Atlantic · Brazil · South Atlantic Ocean
Warning cancelled 2026-09-30 15:00Z (dropped from inforce)
Read original warning
```
SOUTH ATLANTIC.
BRAZIL.
1. UNDERWATER OPERATIONS IN PROGRESS UNTIL
   120259Z OCT BY M/V SISTAC VITORIA
   IN 22-32.82S 040-04.05W.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 120359Z OCT 26.
```
2
SurveysHYDROLANT 1961/26Issued 2026-10-02 08:30Z
Underwater operations in progress until 110300Z oct by M/V sistac vitoria in 22-32.81S 040-04.04W
South Atlantic · Brazil · South Atlantic Ocean
Warning recorded as in force
Read original warning
```
SOUTH ATLANTIC.
BRAZIL.
1. UNDERWATER OPERATIONS IN PROGRESS
   UNTIL 110300Z OCT BY M/V SISTAC VITORIA
   IN 22-32.81S 040-04.04W.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 110400Z OCT 26.
```

Not for navigation. Names and identifiers are extracted automatically from the cited warnings. This archive does not verify current vessel position, seaworthiness or incident resolution. Mariners must use official NAVAREA broadcasts and their national MSI service.