Icebergs

Icebergs reported in: a. A76A, 55-30.00S 046-18.00W

Southern Ocean · HYDROLANT 553/23

What this record establishes

Archived notice · 2023-03-14 14:43Z

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 96/23 131442Z MAR 23.. Issued 2023-03-13 14:47Z. 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
Southern Ocean. The parsed report position is -62.093, -40.716. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

Related notices and cancellation links

These reports were linked by category and sea, with positions within 30 nautical miles and issue dates within 30 days of another report's recorded in-force span. Links can extend through other members, so the full group can cover a larger area or period. Proximity does not confirm that they describe one incident.

  1. HYDROLANT 419/232023-02-23 · Archived notice
  2. HYDROLANT 478/232023-03-02 · Archived notice
  3. HYDROLANT 527/232023-03-09 · Archived notice
  4. HYDROLANT 535/232023-03-10 · Archived notice
  5. HYDROLANT 542/232023-03-11 · Archived notice
  6. HYDROLANT 549/232023-03-12 · Archived notice
Compare all 17 notices, changes and original texts →

Current notices and reporting history in the Southern Ocean →

issued
2023-03-13 14:47Z
status
Archived notice
self-cancels
2023-03-14 14:43Z
authority
NAVAREA VI 96/23 131442Z MAR 23.
NAVAREA
NAVAREA VI · named as the source of this relay
sea
Southern Ocean
position
-62.093, -40.716
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

SCOTIA SEA.
SOUTH ATLANTIC.
WEDDELL SEA.
1. ICEBERGS REPORTED IN:
   A. A76A, 55-30.00S 046-18.00W.
   B. D29A, 63-12.00S 039-39.00W.
   C. A78, 68-14.00S 047-24.00W.
   D. 62-14.00S 023-11.00W.
   E. 61-26.00S 025-10.00W.
   F. 65-49.00S 046-01.00W.
   G. 66-27.00S 030-11.00W.
   H. 62-08.00S 023-55.00W.
   I. 54-32.00S 048-14.00W.
   J. 55-57.00S 045-35.00W.
   K. 55-58.00S 045-30.00W.
   L. 54-54.00S 047-45.00W.
   M. 68-18.00S 046-58.00W.
   N. 68-17.00S 047-08.00W.
   O. 68-28.00S 047-45.00W.
2. CANCEL HYDROLANT 552/23.
3. CANCEL THIS MSG 141443Z MAR 23.

Reading this warning

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.
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.
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

276 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

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

Worldwide in the collected sources

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

Record snapshot 2026-10-03 19:57Z; 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.