Icebergs

South georgia and the south sandwich islands

South Atlantic Ocean · HYDROLANT 2677/23

What this record establishes

Archived notice · 2023-11-22 16:53Z

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 VI 420/23 211645Z NOV 23.. Issued 2023-11-21 16:55Z. 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 parsed report position is -54.357, -33.796. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

Current notices and reporting history in the South Atlantic Ocean →

issued
2023-11-21 16:55Z
status
Archived notice
self-cancels
2023-11-22 16:53Z
authority
NAVAREA VI 420/23 211645Z NOV 23.
NAVAREA
NAVAREA VI · named as the source of this relay
sea
South Atlantic Ocean
position
-54.357, -33.796
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

SCOTIA SEA.
SOUTH ATLANTIC.
SOUTH GEORGIA AND THE SOUTH SANDWICH ISLANDS.
DNC 01, DNC 29.
1. ICEBERGS REPORTED IN:
   A. A23A, 62-52.00S 052-11.00W.
   B. A76A, 51-46.00S 022-48.00W.
   C. D29A, 58-40.00S 025-40.00W.
   D. D29B, 57-01.00S 042-17.00W.
   E. D30A, 56-52.00S 044-24.00W.
   F. D28, 55-47.00S 035-30.00W.
   G. 52-47.00S 026-25.00W.
   H. 53-03.00S 039-51.00W.
   I. 52-25.00S 039-55.00W.
   J. 54-43.00S 033-29.00W.
   K. 60-35.00S 052-09.00W.
   L. 50-47.00S 026-17.00W.
   M. 55-20.00S 040-57.00W.
   N. 50-04.00S 027-58.00W.
   O. 51-29.00S 023-48.00W.
   P. 50-51.00S 026-22.00W.
   Q. 50-59.00S 024-16.00W.
   R. 52-25.00S 024-03.00W.
2. CANCEL THIS MSG 221653Z NOV 23.

Reading this warning

DNC (Digital Nautical Chart)
A reference to one of the regions of NGA's Digital Nautical Chart, used to tell the reader which charts a warning affects.
Icebergs and ice limits
Icebergs, smaller pieces of glacier ice and the published limit of known ice.
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.
CANCEL THIS MSG
The warning's own expiry: a line telling the reader when the message cancels itself.
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.

All warning terms →

Collected reports in this area · iceberg & sea-ice bulletins

604 within 180 nm since 2000 · 0 in the last 12 months · 0 listed in force now

00
05
10
15
20
24

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

No other collected notice is currently listed in force within this radius. This does not establish safe conditions.

Worldwide in the collected sources

6 iceberg & sea-ice bulletins listed in force · see all

Record snapshot 2026-10-02 03:26Z; source collection times vary.

Icebergs

Iceberg limits and reported bergs — mostly the North American Ice Service (International Ice Patrol) bulletins in the North Atlantic. All current iceberg & sea-ice bulletins →

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.