North american ice service (nais) iceberg bulletin 180001Z jun
Labrador Sea · NAVAREA IV 670/23
What this record establishes
Archived notice · 2023-06-19 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 0/23 171901Z JUN 23.. Issued 2023-06-17 19:06Z. 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 map shows the reported line or operation extent; it is not a vessel track. 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.
- NAVAREA IV 1344/222022-12-12 · Archived notice
- NAVAREA IV 1346/222022-12-13 · Archived notice
- NAVAREA IV 1350/222022-12-14 · Archived notice
- NAVAREA IV 1353/222022-12-15 · Archived notice
- NAVAREA IV 1360/222022-12-16 · Archived notice
- NAVAREA IV 1366/222022-12-17 · Archived notice
- issued
- 2023-06-17 19:06Z
- status
- Archived notice
- self-cancels
- 2023-06-19 00:01Z
- authority
- NAIS 0/23 171901Z JUN 23.
- NAVAREA
- NAVAREA IV
- issued by
- NAIS
- sea
- Labrador Sea
- position
- 56.394, -47.658
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
1. NORTH AMERICAN ICE SERVICE (NAIS)
ICEBERG BULLETIN 180001Z JUN.
2. ICEBERG LIMIT ALONG TRACKLINE JOINING
46-58N 055-36W, 45-50N 053-18W,
46-05N 050-10W, 47-46N 046-45W,
53-50N 048-36W, 57-25N 052-45W.
3. ESTIMATED ICEBERG LIMIT ALONG
TRACKLINE JOINING
57-25N 052-45W, 58-55N 054-20W,
58-50N 050-30W, 57-25N 043-55W,
58-20N 039-20W, 63-00N 035-05W,
65-10N 027-40W.
4. WESTERN ICEBERG LIMIT ALONG TRACKLINE
JOINING
50-15N 062-01W, 47-53N 059-24W.
5. SEA ICE LIMIT ALONG TRACKLINES
JOINING:
A. 49-37N 055-50W, 50-01N 055-17W,
50-16N 056-05W, 50-09N 056-11W.
B. 53-16N 055-46W, 54-35N 053-06W,
56-08N 056-09W, 58-03N 057-51W,
60-56N 058-42W, 62-00N 058-32W,
62-30N 057-33W.
C. 62-29N 041-14W, 62-14N 040-46W,
61-23N 040-39W, 59-28N 042-18W,
59-00N 043-08W, 59-20N 045-31W,
59-48N 047-32W, 60-18N 047-47W,
60-38N 046-48W.
6. MOST RECENT RECONNAISSANCE:
INTERIOR SATELLITE PASS 17 JUN 23.
7. REPORT POSITION AND TIME OF ANY ICEBERGS
SEA ICE OR STATIONARY RADAR TARGETS THAT
MAY LIKELY BE ICE TO THE NEAREST CANADIAN
COAST GUARD MARINE COMMUNICATIONS AND
TRAFFIC SERVICE STATION OR
USING INMARSAT CODE 42.
8. FOR MORE REPORTING INFORMATION OR TO
DOWNLOAD SHAPEFILES AND WEEKLY PREDICTIONS,
GO TO WWW.NAVCEN.USCG.GOV/IIP.
9. CANCEL THIS MSG 190001Z JUN 23.
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.
- Track line joining
- Introduces a route through a series of positions — a cable route, a tow's track or a survey line.
- 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.
- 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
2459 within 180 nm since 2010 · 4 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.
- North american ice service (nais) iceberg bulletin 020001Z oct2026-10-01
- North american ice service (nais) iceberg bulletin 280001Z sep2026-09-27
- North american ice service (nais) iceberg bulletin 170001Z sep2026-09-16
- North american ice service (nais) iceberg bulletin 160001Z sep2026-09-15
- North american ice service (nais) iceberg bulletin 020001Z oct2024-10-01
- North american ice service (nais) iceberg bulletin 200001Z jun2024-06-19
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 2026-10-02 16:58Z; 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.