180001Z may iceberg limit 46-50N 055-45W, 46-00N 055-15W, 43-30N 050-00W, 43-30N 048-30W, 46-00N 045-15W,…
Labrador Sea · NAVAREA IV 250/12
What this record establishes
Archived notice · 2012-05-19 00:01Z
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) · NAIS 172122Z MAY 12.. Issued 2012-05-17 22:03Z. 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
- Labrador Sea. The parsed report position is 52.426, -54.010. 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
- Radar targets reported vicinity 43-12N 049-30W at 171250Z maycancelled by this 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.
- NAVAREA IV 54/122012-02-14 · Archived notice
- NAVAREA IV 56/122012-02-15 · Archived notice
- NAVAREA IV 57/122012-02-16 · Archived notice
- NAVAREA IV 58/122012-02-17 · Archived notice
- NAVAREA IV 60/122012-02-18 · Archived notice
- NAVAREA IV 63/122012-02-19 · Archived notice
- issued
- 2012-05-17 22:03Z
- status
- Archived notice
- self-cancels
- 2012-05-19 00:01Z
- authority
- NAIS 172122Z MAY 12.
- NAVAREA
- NAVAREA IV
- issued by
- NAIS
- sea
- Labrador Sea
- position
- 52.426, -54.010
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
NORTH AMERICAN ICE SERVICE (NAIS) ICEBERG BULLETIN.
1. 180001Z MAY ICEBERG LIMIT
46-50N 055-45W, 46-00N 055-15W, 43-30N 050-00W,
43-30N 048-30W, 46-00N 045-15W, 50-00N 044-00W,
59-00N 055-30W.
2. WESTERN ICEBERG LIMIT
50-15N 061-15W, 49-10N 058-05W.
3. RADAR TARGETS OUTSIDE ICEBERG LIMIT
42-55N 049-49W, 42-56N 049-49W.
4. SEA ICE LIMIT:
A. 49-25N 053-50W, 50-30N 054-10W, 51-20N 055-30W.
B. 52-30N 055-00W, 52-30N 053-00W, 53-00N 051-00W,
54-30N 051-00W, 56-00N 053-00W, 58-00N 057-30W,
62-00N 060-00W, 65-25N 056-55W, 67-35N 054-55W,
63-55N 053-05W, 60-00N 049-00W.
C. 50-40N 059-20W, 50-35N 059-10W, 51-05N 058-25W,
51-15N 058-15W.
5. REPORT POSITION AND TIME OF ANY ICEBERGS OR
STATIONARY RADAR TARGETS THAT MAY LIKELY BE
ICEBERGS TO THE NEAREST CANADIAN COAST GUARD
MARINE COMMUNICATIONS AND TRAFFIC SERVICE STATION
OR USING INMARSAT CODE 42.
6. CANCEL NAVAREA IV 248/12(14).
7. CANCEL THIS MSG 190001Z MAY.
Reading this warning
- Icebergs and ice limits
- Icebergs, smaller pieces of glacier ice and the published limit of known ice.
- 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.
- 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.
- Inmarsat-C / SafetyNET
- The satellite system that carries NAVAREA warnings to ships at sea, and the terminal number rescue centres give for reports.
- Cancellation reference
- A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
- NAVAREA
- One of the 21 ocean areas of the World-Wide Navigational Warning Service, each with a coordinator that broadcasts long-range warnings.
- CANCEL THIS MSG
- The warning's own expiry: a line telling the reader when the message cancels itself.
Collected reports in this area · iceberg & sea-ice bulletins
997 within 180 nm since 1999 · 0 in the last 12 months · 0 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.
- North american ice service (nais) iceberg bulletin 070001Z feb2023-02-06
- North american ice service (nais) iceberg bulletin 060001Z feb2023-02-05
- North american ice service (nais) iceberg bulletin 050001Z feb2023-02-04
- Numerous icebergs sighted in vicinity 51-12.92N 050-03.90W at 181255Z aug 222022-08-18
- Iceberg reported in 50-51.6N 057-58.8W2022-04-08
- Icebergs reported at 171409Z apr in: a. 51-10.5N 057-24.7W2021-04-17
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
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 10:51Z; 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.