North american ice service (nais) iceberg bulletin 200001Z sep
Labrador Sea · NAVAREA IV 1078/23
What this record establishes
Archived notice · 2023-09-21 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 191901Z SEP 23.. Issued 2023-09-19 20:00Z. 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
- Cable operations in progress until 192300Z sep by M/V rebecca along trackline joining 48-55.54N 039-15.64W,…cancelled 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 931/232023-08-18 · Archived notice
- NAVAREA IV 933/232023-08-19 · Archived notice
- NAVAREA IV 938/232023-08-20 · Archived notice
- NAVAREA IV 943/232023-08-21 · Archived notice
- NAVAREA IV 945/232023-08-22 · Archived notice
- NAVAREA IV 947/232023-08-22 · Archived notice
- issued
- 2023-09-19 20:00Z
- status
- Archived notice
- self-cancels
- 2023-09-21 00:01Z
- authority
- NAIS 0/23 191901Z SEP 23.
- NAVAREA
- NAVAREA IV
- issued by
- NAIS
- sea
- Labrador Sea
- position
- 58.744, -44.888
- 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 200001Z SEP. 2. ICEBERG LIMIT ALONG TRACKLINE JOINING 49-26N 053-55W, 52-30N 050-00W, 54-00N 050-00W, 59-15N 057-00W. 3. ESTIMATED ICEBERG LIMIT ALONG TRACKLINE JOINING 59-15N 057-00W, 59-55N 051-20W, 57-05N 042-50W, 59-15N 037-00W, 61-30N 039-30W, 62-25N 039-20W, 65-10N 027-40W. 4. WESTERN ICEBERG LIMIT ALONG TRACKLINE JOINING 51-32N 056-47W, 51-24N 056-28W. 5. MOST RECENT RECONNAISSANCE: SOUTHERN LIMIT ICEBERG FLIGHT 16 SEP 23. 6. 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. 7. FOR MORE REPORTING INFORMATION OR TO DOWNLOAD SHAPEFILES AND WEEKLY PREDICTIONS, GO TO WWW.NAVCEN.USCG.GOV/IIP. 8. CANCEL NAVAREA IV 1062/23(14). 9. CANCEL THIS MSG 210001Z SEP 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.
- 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
1249 within 180 nm since 1998 · 25 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 010001Z oct2026-09-30
- North american ice service (nais) iceberg bulletin 300001Z sep2026-09-29
- North american ice service (nais) iceberg bulletin 290001Z sep2026-09-28
- North american ice service (nais) iceberg bulletin 280001Z sep2026-09-27
- North american ice service (nais) iceberg bulletin 250001Z sep2026-09-24
- North american ice service (nais) iceberg bulletin 240001Z sep2026-09-23
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
- North american ice service (nais) iceberg bulletin 250001Z sepIcebergs · 56.3 nm
Worldwide in the collected sources
6 iceberg & sea-ice bulletins listed in force · see all
Record snapshot 2026-10-02 09:55Z; 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.