Icebergs

Icebergs reported in South Atlantic, Antarctica, South Shetland Islands at positions including 60-01S 051-24W and 58-53S 050-59W; cancellation at 201247Z August 26.

South Atlantic Ocean · HYDROLANT 1617/26

What this record establishes

Cancelled notice · 2026-08-19 18:30Z

This notice disappeared from the issuing source's in-force list. No explicit recovery or all-clear is established by that removal.

Source and dates
NGA MSI in-force warnings (DailyMem*.txt). Issued 2026-08-19 12:47Z. First collected 2026-08-19 19:02Z; last seen in collection 2026-08-23 15:17Z. Collection dates record ingestion, not a new incident or a fresh field observation.
Location covered
South Atlantic Ocean. The parsed report position is -59.783, -49.954. 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 1574/262026-08-14 · Cancelled notice
  2. HYDROLANT 1617/26 · this notice2026-08-19 · Cancelled notice
  3. HYDROLANT 1629/262026-08-20 · Cancelled notice
  4. HYDROLANT 1640/262026-08-21 · Cancelled notice
  5. HYDROLANT 1661/262026-08-24 · Cancelled notice
Compare all 5 notices, changes and original texts →

Current notices and reporting history in the South Atlantic Ocean →

issued
2026-08-19 12:47Z
status
Cancelled notice
self-cancels
2026-08-20 12:47Z
sea
South Atlantic Ocean
position
-59.783, -49.954
source
NGA MSI in-force warnings (DailyMem*.txt) · first seen 2026-08-19 19:02Z

Original warning text

SOUTH ATLANTIC.
ANTARCTICA.
SOUTH SHETLAND ISLANDS.
1. ICEBERGS REPORTED IN:
   A. D33B, 60-01.00S 051-24.00W.
   B. A81, 58-53.00S 050-59.00W.
   C. A76C, 52-57.00S 030-10.00W.
   D. D33C, 61-56.00S 054-23.00W.
   E. 60-36.00S 050-56.00W.
   F. 61-05.00S 053-49.00W.
   G. 61-25.00S 053-46.00W.
   H. 61-23.00S 054-11.00W.
2. CANCEL THIS MSG 201247Z AUG 26.

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.
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

1008 within 180 nm since 1999 · 22 in the last 12 months · 1 listed in force now

99
00
05
10
15
20
25
26

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 06:21Z; 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.