Surveys

Hydrographic survey in progress until 19 apr by M/V pericuma I in area bound by 01-43.75S 043-53.32W,…

South Atlantic Ocean · HYDROLANT 472/13

What this record establishes

Archived notice · 2013-04-20 00:01Z

This notice comes from the historical archive. Its archived status does not establish when or how the reported situation ended.

Source and dates
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · NAVAREA V N 211/13 210046Z FEB 13.. Issued 2013-02-21 01:12Z. First collected 2026-08-17 13:38Z; last seen in collection 2026-08-17 15:46Z. Collection dates record ingestion, not a new incident or a fresh field observation.
Location covered
South Atlantic Ocean. The map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.

Related notices and cancellation links

Current notices and reporting history in the South Atlantic Ocean →

issued
2013-02-21 01:12Z
status
Archived notice
authority
NAVAREA V N 211/13 210046Z FEB 13.
NAVAREA
NAVAREA V · named as the source of this relay
issued by
NAVAREA V N
sea
South Atlantic Ocean
position
-2.140, -44.128
vessel
M/V PERICUMA I · 2 messages
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

BRAZIL-NORTH COAST.
1. HYDROGRAPHIC SURVEY IN PROGRESS UNTIL 19 APR
   BY M/V PERICUMA I IN AREA BOUND BY
   01-43.75S 043-53.32W, 01-47.83S 043-47.52W,
   02-21.88S 044-09.03W, 02-23.12S 044-08.72W,
   02-28.25S 044-15.83W, 02-29.60S 044-19.66W,
   02-31.38S 044-21.11W, 02-33.99S 044-22.63W,
   02-34.85S 044-22.50W, 02-37.21S 044-23.19W,
   02-33.59S 044-30.98W, 02-27.39S 044-25.52W,
   02-24.43S 044-22.80W, 02-16.95S 044-19.48W,
   02-17.32S 044-17.27W, 02-05.39S 044-11.25W,
   01-59.39S 044-07.59W, 01-55.20S 044-11.33W,
   01-47.21S 043-59.34W.
   WIDE BERTH REQUESTED.
2. CANCEL HYDROLANT 423/13.
3. CANCEL THIS MSG 20 APR 13.

Reading this warning

Survey operations
A research or survey vessel is mapping the seabed or water column, often while towing equipment.
Area bound by
Introduces a list of positions that are the corners of an area — the polygon the warning applies to.
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.
Cancellation reference
A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
HYDROLANT
The U.S. long-range warning series for Atlantic waters outside NAVAREA IV, including the eastern Atlantic, the Mediterranean and adjoining seas.
CANCEL THIS MSG
The warning's own expiry: a line telling the reader when the message cancels itself.

All warning terms →

Collected reports in this area · survey operations

19 within 180 nm since 1999 · 0 in the last 12 months · 0 listed in force now

99
00
05
10
15
20
23

Counts include repeat notices about the same situation. NGA archive coverage ends 2024-05; live collection began 2026-08-17. The period between them is incomplete. An empty year is not evidence that no hazards occurred.

Month of issue in the collected archive

J
F
M
A
M
J
J
A
S
O
N
D

All available years combined. Uneven collection and repeat bulletins affect these counts; this chart does not measure the seasonality or probability of incidents.

Nearby notices listed in force · within 120 nm

Worldwide in the collected sources

56 survey operations listed in force · see all

Record snapshot 2026-10-03 16:17Z; source collection times vary.

Surveys

Hydrographic and scientific survey vessels, often towing long arrays. All current survey operations →

Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.