Icebergs

050001Z jul iceberg limit: 47-15N 052-45W, 47-45N 050-30W, 48-30N 049-45W, 53-00N 049-00W, 54-00N 049-00W,…

Hudson Strait · NAVAREA IV 360/12

What this record establishes

Archived notice · 2012-07-06 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). Issued 2012-07-04 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
Hudson Strait. The parsed report position is 61.342, -64.881. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

Current notices and reporting history in the Hudson Strait →

issued
2012-07-04 21:06Z
status
Archived notice
self-cancels
2012-07-06 00:01Z
NAVAREA
NAVAREA IV
sea
Hudson Strait
position
61.342, -64.881
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. 050001Z JUL ICEBERG LIMIT:
   47-15N 052-45W, 47-45N 050-30W, 48-30N 049-45W,
   53-00N 049-00W, 54-00N 049-00W, 60-00N 056-00W.
2. WESTERN ICEBERG LIMIT:
   50-05N 057-45W, 50-40N 059-25W.
3. SEA ICE LIMIT:
   A. 60-10N 064-25W, 60-40N 063-55W, 60-50N 065-00W,
      59-45N 066-30W, 59-50N 067-40W, 59-20N 067-40W,
      60-20N 069-40W.
   B. 63-45N 080-10W, 64-30N 079-25W, 64-05N 077-25W,
      64-05N 075-35W, 63-25N 074-05W, 62-20N 070-35W,
      61-30N 067-40W, 61-15N 064-40W, 62-00N 064-00W,
      65-00N 055-30W, 74-45N 062-00W, 74-45N 067-30W,
      73-30N 069-00W, 75-00N 077-00W, 78-10N 072-50W.
4. 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.
5. CANCEL THIS MSG 060001Z JUL.

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.
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

165 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

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

Record snapshot 2026-09-26 01:23Z; 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.