Icebergs reported in: a. B15T, 60-20S 050-29W
South Atlantic Ocean · HYDROLANT 939/18
What this record establishes
Archived notice · 2018-03-20 14:44Z
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 143/18 191400Z MAR 18.. Issued 2018-03-19 14:44Z. 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 -59.686, -43.905. 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
- Icebergs reported in: a. B15T, 60-20S 050-31Wcancelled by this notice
- Icebergs reported in: a. B15T, 60-20S 049-58Wlater cancellation notice
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.
- HYDROLANT 879/182018-03-12 · Archived notice
- HYDROLANT 886/182018-03-13 · Archived notice
- HYDROLANT 893/182018-03-14 · Archived notice
- HYDROLANT 902/182018-03-15 · Archived notice
- HYDROLANT 919/182018-03-16 · Archived notice
- HYDROLANT 927/182018-03-17 · Archived notice
Current notices and reporting history in the South Atlantic Ocean →
- issued
- 2018-03-19 14:44Z
- status
- Archived notice
- self-cancels
- 2018-03-20 14:44Z
- authority
- NAVAREA VI 143/18 191400Z MAR 18.
- NAVAREA
- NAVAREA VI · named as the source of this relay
- sea
- South Atlantic Ocean
- position
- -59.686, -43.905
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
SOUTH ATLANTIC. WEDDELL SEA. SCOTIA SEA. DNC 01, DNC 29. 1. ICEBERGS REPORTED IN: A. B15T, 60-20S 050-29W. B. B15Z, 55-19S 042-27W. C. B09F, 61-36S 053-37W. D. C28B, 59-36S 050-30W. E. 63-28S 042-32W. F. 59-30S 020-34W. G. 57-59S 047-11W. 2. CANCEL HYDROLANT 933/18. 3. CANCEL THIS MSG 201444Z MAR 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.
- 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.
Collected reports in this area · iceberg & sea-ice bulletins
1123 within 180 nm since 1999 · 20 in the last 12 months · 1 listed in force now
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.
- Icebergs reported in: a. A81, 55-35.00S 041-56.00W2026-10-01
- Icebergs reported in: a. A81, 55-45.00S 042-16.00W2026-09-30
- Icebergs reported in: a. A81, 55-57.00S 042-54.00W2026-09-29
- Icebergs reported in: a. A81, 56-07.00S 043-14.00W2026-09-28
- Icebergs reported in: a. A81, 56-20.00S 043-37.00W2026-09-27
- Icebergs reported in: a. A81, 56-46.00S 044-03.00W2026-09-25
Month of issue in the collected archive
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
- Icebergs reported in: a. A81, 56-46.00S 044-03.00WIcebergs · 103.4 nm
Worldwide in the collected sources
6 iceberg & sea-ice bulletins listed in force · see all
Record snapshot 2026-10-02 07:48Z; 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.