Icebergs

Icebergs reported in: a. B22A, 74-04S 108-55W

Southern Ocean · HYDROPAC 3982/17

What this record establishes

Archived notice · 2017-11-17 15:46Z

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) · VALPARAISO PLAYA ANCHA RADIO 161440Z NOV 17.. Issued 2017-11-16 15:46Z. 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 -71.290, -102.995. 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. HYDROPAC 2993/172017-09-02 · Archived notice
  2. HYDROPAC 3015/172017-09-04 · Archived notice
  3. HYDROPAC 3031/172017-09-05 · Archived notice
  4. HYDROPAC 3043/172017-09-06 · Archived notice
  5. HYDROPAC 3060/172017-09-07 · Archived notice
  6. HYDROPAC 3080/172017-09-08 · Archived notice
Compare all 52 notices, changes and original texts →

Current notices and reporting history in the Southern Ocean →

issued
2017-11-16 15:46Z
status
Archived notice
self-cancels
2017-11-17 15:46Z
authority
VALPARAISO PLAYA ANCHA RADIO 161440Z NOV 17.
issued by
VALPARAISO PLAYA ANCHA RADIO
sea
Southern Ocean
position
-71.290, -102.995
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

SOUTH PACIFIC.
ANTARCTICA.
DNC 29.
1. ICEBERGS REPORTED IN:
   A. B22A, 74-04S 108-55W.
   B. B28, 74-45S 108-53W.
   C. B29, 74-35S 109-01W.
   D. B30, 71-19S 160-17W.
   E. B31, 69-08S 112-10W.
   F. A68A, 67-56S 060-53W.
   G. A68B, 67-15S 060-49W.
2. CANCEL THIS MSG 171546Z NOV 17.

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

163 within 180 nm since 2017 · 0 in the last 12 months · 0 listed in force now

17
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

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

Record snapshot 2026-10-03 06:35Z; 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.