Icebergs

North american ice service (nais) iceberg bulletin 160001Z nov

Hudson Strait · NAVAREA IV 1327/23

What this record establishes

Archived notice · 2023-11-17 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 151902Z NOV 23.. Issued 2023-11-15 21:12Z. 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
Hudson Strait. 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.

  1. NAVAREA IV 1288/232023-11-05 · Archived notice
  2. NAVAREA IV 1319/232023-11-12 · Archived notice
  3. NAVAREA IV 1323/232023-11-13 · Archived notice
  4. NAVAREA IV 1324/232023-11-14 · Archived notice
  5. NAVAREA IV 1327/23 · this notice2023-11-15 · Archived notice
  6. NAVAREA IV 1331/232023-11-16 · Archived notice
Compare all 7 notices, changes and original texts →

Current notices and reporting history in the Hudson Strait →

issued
2023-11-15 21:12Z
status
Archived notice
self-cancels
2023-11-17 00:01Z
authority
NAIS 0/23 151902Z NOV 23.
NAVAREA
NAVAREA IV
issued by
NAIS
sea
Hudson Strait
position
60.646, -66.140
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 NOV.
2. ICEBERG LIMIT ALONG TRACKLINE JOINING
   51-43N 056-38W, 51-45N 055-00W,
   54-00N 052-30W, 55-15N 052-30W,
   58-30N 057-00W.
3. ESTIMATED ICEBERG LIMIT ALONG
   TRACKLINE JOINING
   58-30N 057-00W, 60-25N 053-05W,
   58-10N 041-10W, 58-55N 039-30W,
   60-40N 037-55W, 62-30N 038-15W,
   65-10N 027-40W.
4. SEA ICE LIMIT ALONG TRACKLINES
   JOINING:
   A. 54-12N 057-30W, 54-25N 057-33W.
   B. 55-20N 059-47W, 55-30N 059-28W,
      60-31N 064-04W, 60-54N 064-29W,
      58-56N 067-40W, 61-12N 069-20W,
      62-54N 074-24W, 62-26N 080-53W,
      61-38N 080-34W, 58-31N 079-03W,
      57-58N 077-07W.
   C. 54-54N 078-52W, 59-35N 093-46W,
      62-57N 088-32W, 61-36N 083-00W,
      63-47N 079-46W, 65-32N 082-19W,
      66-06N 079-27W, 64-23N 079-08W,
      61-57N 068-49W, 62-11N 068-00W.
   D. 61-59N 066-00W, 62-15N 062-45W,
      65-15N 058-45W, 68-19N 058-37W.
5. MOST RECENT RECONNAISSANCE:
   INTERIOR SATELLITE PASS 15 NOV 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 THIS MSG 170001Z NOV 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.

All warning terms →

Collected reports in this area · iceberg & sea-ice bulletins

155 within 180 nm since 2011 · 0 in the last 12 months · 0 listed in force now

11
15
20
23

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.

Month of issue in the collected archive

J
F
M
A
M
J
J
A
S
O
N
D

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

Worldwide in the collected sources

4 iceberg & sea-ice bulletins listed in force · see all

Record snapshot 2026-10-02 19:52Z; 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.