North american ice service (nais) iceberg bulletin 160001Z may
Labrador Sea · NAVAREA IV 528/23
What this record establishes
Archived notice · 2023-05-17 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 151901Z MAY 23.. Issued 2023-05-15 21:06Z. 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
- 2023-05-15 21:06Z
- status
- Archived notice
- self-cancels
- 2023-05-17 00:01Z
- authority
- NAIS 0/23 151901Z MAY 23.
- NAVAREA
- NAVAREA IV
- issued by
- NAIS
- sea
- Labrador Sea
- position
- 56.680, -48.847
- 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 160001Z MAY.
2. ICEBERG LIMIT ALONG TRACKLINE JOINING
47-08N 055-10W, 45-15N 053-10W,
46-30N 049-30W, 52-50N 048-00W,
57-55N 054-55W.
3. ESTIMATED ICEBERG LIMIT ALONG
TRACKLINE JOINING
57-55N 054-55W, 58-30N 051-40W,
58-15N 045-45W, 59-00N 041-50W,
62-55N 038-05W, 65-25N 029-15W.
4. WESTERN ICEBERG LIMIT ALONG TRACKLINE
JOINING
50-20N 061-40W, 48-05N 058-55W.
5. SEA ICE LIMIT ALONG TRACKLINES
JOINING:
A. 50-40N 059-20W, 50-23N 058-48W,
50-42N 057-24W.
B. 49-15N 053-28W, 50-19N 052-49W,
51-52N 053-39W, 53-31N 052-51W,
56-58N 057-48W, 58-02N 058-44W,
61-05N 060-25W, 63-24N 057-58W.
C. 62-25N 040-38W, 61-45N 040-43W,
60-21N 041-24W, 59-20N 042-35W,
59-11N 043-44W, 59-19N 045-49W,
60-20N 048-50W, 59-19N 045-49W,
60-20N 048-50W, 60-44N 048-19W.
6. MOST RECENT RECONNAISSANCE:
WESTERN LIMIT ICEBERG FLIGHT 10 MAY 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 170001Z MAY 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
2511 within 180 nm since 2010 · 5 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 240001Z sep2026-09-23
- North american ice service (nais) iceberg bulletin 230001Z sep2026-09-22
- 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 140001Z sep2026-09-13
- North american ice service (nais) iceberg bulletin 020001Z oct2024-10-01
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
1 iceberg & sea-ice bulletins listed in force · see all
Record snapshot 2026-09-24 22:03Z; 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.