Category: NAVIGATION HAZARD

Perhaps all of these satellite promulgated safety alerts describe navigation hazards. The posts in this category specifically mention a collision hazard. Some messages inform mariners about warning light outages. Submerged and derelict vessels pose a risk. There are subcategories for construction activity and icebergs.
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Ice coverage report for METAREA XVIII issued January 29, 2025.
ICE bulletin for METAREA XVIII (29 Jan 2025): Sea ice cover 6-10 tenths, isolated icebergs reported in various regions. Read more
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Sea ice report for various regions issued on January 29, 2025.
ICE bulletin for METAREA XVIII on 29-Jan-2025 reports sea ice coverage from 6 to 10, with isolated or many icebergs. Read more
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Ice conditions reported for Greenland waters; many icebergs noted.
ICE BULLETIN: 29 Jan 2025 – Greenland waters show varied sea ice coverage, with many icebergs present. Ice edge outside forecast region. Read more
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Sea ice coverage and iceberg status report for various regions.
ICE Bulletin for Metarea IV reports sea ice coverage of 9 tenths in various regions as of 29-Jan-2025, icebergs unlikely. Read more
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Sea ice coverage reported, with high likelihood of no icebergs.
ICE bulletin for Metarea IV: Jan 29, 2025. Sea ice coverage mostly 9+, icebergs highly unlikely in many areas. Read more
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Sea ice coverage is over 9 tenths; icebergs unlikely in multiple regions.
Sea ice coverage is 9+ tenths across regions in METAREA XVII, with isolated icebergs likely. Issued by Environment Canada. Read more
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Ice coverage report for METAREA XVII shows high sea ice levels.
ICE Bulletin: Jan 29, 2025, sea ice coverage is 9+ tenths; icebergs unlikely in several Arctic regions. Read more
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Walvis Bay Radio NAVTEX inoperable until further notice.
Walvis Bay Radio NAVTEX not operational until further notice (South Atlantic Ocean, NE sector). Read more