Icebergs

North american ice service (nais) iceberg bulletin 050001Z nov

Davis Strait · NAVAREA IV 1064/20

What this record establishes

Archived notice · 2020-11-06 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) · NAIS 041902Z NOV 20.. Issued 2020-11-04 19:03Z. 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
Davis 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 1064/20 · this notice2020-11-04 · Archived notice
  2. NAVAREA IV 1069/202020-11-05 · Archived notice
  3. NAVAREA IV 1073/202020-11-06 · Archived notice
  4. NAVAREA IV 1075/202020-11-07 · Archived notice
  5. NAVAREA IV 1078/202020-11-08 · Archived notice
  6. NAVAREA IV 1083/202020-11-09 · Archived notice
Compare all 6 notices, changes and original texts →

Current notices and reporting history in the Davis Strait →

issued
2020-11-04 19:03Z
status
Archived notice
self-cancels
2020-11-06 00:01Z
authority
NAIS 041902Z NOV 20.
NAVAREA
NAVAREA IV
issued by
NAIS
sea
Davis Strait
position
61.080, -57.454
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 050001Z NOV.
2. ICEBERG LIMIT ALONG TRACKLINE JOINING
   50-21N 056-25W, 50-30N 053-00W,
   52-00N 048-15W, 53-00N 048-15W,
   56-00N 052-00W.
3. ESTIMATED ICEBERG LIMIT ALONG
   TRACKLINE JOINING
   56-00N 052-00W, 61-00N 059-00W,
   62-00N 054-00W, 58-00N 048-00W,
   58-00N 040-00W, 64-00N 037-00W,
   66-00N 028-00W.
4. WESTERN ICEBERG LIMIT ALONG TRACKLINE
   JOINING
   51-34N 056-44W, 51-23N 056-32W.
5. SEA ICE LIMIT ALONG TRACKLINES
   JOINING:
   A. 60-15N 064-55W, 58-45N 067-10W,
      59-30N 068-55W, 60-35N 067-15W,
      61-00N 069-30W.
   B. 61-05N 069-35W, 62-50N 074-10W,
      62-30N 080-40W, 63-10N 081-00W,
      64-10N 078-05W, 63-50N 073-35W,
      62-25N 070-45W, 61-35N 065-25W.
   C. 61-35N 064-40W, 66-45N 058-45W,
      68-45N 064-45W, 70-15N 065-00W,
      71-35N 062-35W.
   D. 62-19N 042-13W, 61-56N 041-56W,
      61-43N 041-58W, 61-04N 042-32W,
      60-55N 042-27W, 60-54N 042-31W,
      61-05N 042-40W.
6. MOST RECENT RECONNAISSANCE:
   SOUTHERN LIMIT ICEBERG FLIGHT 22 OCT 20.
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 060001Z NOV 20.

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

234 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 19:54Z; 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.