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NAVAREA IV 1025/26

Iceberg and estimated iceberg limits in northwest Atlantic (NAIS bulletin)

No longer in forceIssued 22 Oct 2026, 19:03 UTCArchived 24 Oct 2026, 00:20 UTC

Warning text

Positions open on the map
1. NORTH AMERICAN ICE SERVICE (NAIS) ICEBERG BULLETIN 230001Z OCT. 2. ICEBERG LIMIT ALONG TRACKLINE JOINING 50-30.00N 056-30.00W, 50-30.00N 054-45.00W, 52-00.00N 049-30.00W, 60-00.00N 058-00.00W. 3. ESTIMATED ICEBERG LIMIT ALONG TRACKLINE JOINING 60-00.00N 058-00.00W, 61-25.00N 054-45.00W, 58-55.00N 045-15.00W, 59-25.00N 041-35.00W, 64-25.00N 036-20.00W, 65-00.00N 028-00.00W. 4. WESTERN ICEBERG LIMIT ALONG TRACKLINE JOINING 51-28.00N 057-50.00W, 50-47.00N 057-03.00W. 5. NOTE THE SIGNIFICANT REDUCTION OF THE ICEBERG LIMIT SINCE 220001Z OCT BULLETIN DUE TO RECENT RECONNAISSANCE. 6. MOST RECENT RECONNAISSANCE: EASTERN LIMIT ICEBERG FLIGHT 22 OCT 26. 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/INTERNATIONAL-ICE-PATROL. 9. CANCEL THIS MSG 240001Z OCT 26.

Analysis

No longer in force

A newer Ice report is available:1041/26

North American Ice Service bulletin issues iceberg limits and estimated limits in the northwest Atlantic from the NAIS reconnaissance of 22 Oct 26. Several tracklines define the iceberg limit, estimated iceberg limit and a western iceberg limit. Mariners are asked to report sightings to Canadian Coast Guard MCTS or via Inmarsat code 42 and may download shapefiles and weekly predictions from the provided website. Message cancels at 240001Z Oct 26.

Report position and time of any icebergs, sea ice or stationary radar targets likely to be ice to the nearest Canadian Coast Guard MCTS station or using INMARSAT code 42; navigate with caution near the limits.

Type
Ice report · severity moderate
Feed
IceAll warnings of this kind on the map, or as an API feed.
Location
northwest Atlantic
Validity
From 23 Oct 2026, 00:01 UTC
Until 24 Oct 2026, 00:01 UTCICEBERG BULLETIN 230001Z OCT. ... CANCEL THIS MSG 240001Z OCT 26.
Activity periods
  • 23 Oct 2026, 00:01 UTC - 24 Oct 2026, 00:01 UTC (NAIS iceberg bulletin effective period)
Hazards
iceberg limit, estimated iceberg limit, sea ice, stationary radar targets likely ice

Contacts

Coast stations for this area

Worked out automatically from the warning text on 22 Oct 2026, 19:27 UTC. It can be wrong: the official warning text is the authority.

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