Icebergs

Icebergs reported on 24 aug in: a. 46-04S 058-43W

South Atlantic Ocean · HYDROLANT 2706/18

What this record establishes

Archived notice · 2018-08-27 09:33Z

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 361/18 240933Z AUG 18.. Issued 2018-08-24 09:33Z. 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 -46.061, -58.633. 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 2706/18 · this notice2018-08-24 · Archived notice
  2. HYDROLANT 2717/182018-08-25 · Archived notice
Compare all 2 notices, changes and original texts →

Current notices and reporting history in the South Atlantic Ocean →

issued
2018-08-24 09:33Z
status
Archived notice
self-cancels
2018-08-27 09:33Z
authority
NAVAREA VI 361/18 240933Z AUG 18.
NAVAREA
NAVAREA VI · named as the source of this relay
sea
South Atlantic Ocean
position
-46.061, -58.633
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

WESTERN SOUTH ATLANTIC.
DNC 07.
1. ICEBERGS REPORTED ON 24 AUG IN:
   A. 46-04S 058-43W.
   B. 45-58S 058-32W.
   C. 46-09S 058-39W.
2. CANCEL THIS MSG 270933Z AUG 18.

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

24 within 180 nm since 2002 · 0 in the last 12 months · 0 listed in force now

02
05
10
15
18

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

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

Record snapshot 2026-09-25 00:51Z; 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.