The Northwestern Passages

IHO sea area 14 · -128° to -69° E, 64° to 82° N

in force
6
last 12 months
12
archive messages
260
categories
8

What the archive shows

260 messages are recorded since 2001-09-30 for the The Northwestern Passages. The selection uses the IHO sea area; a message may describe an exercise, equipment outage or continuing operation as well as a hazard report.

Nav aids accounts for 67 of 260 recorded messages (26%), the largest category group in this selection.

The NGA historical archive froze in 2024-05; live collection began 2026-08-17. Counts around that gap are incomplete, and changes in reporting volume do not establish changes in incident frequency.

In force now · 6

  1. HYDROARC 258/26 · Surveys2026-09-25
    A scientific mooring is established in Deese Strait, Canada, at 68-55.94N 105-49.66W, with top float at 122 meters.
  2. HYDROARC 256/26 · Surveys2026-09-25
    A scientific mooring with a top float at 69 meters is established in Queen Maud Gulf, Canada, at 68-48.95N 105-06.53W.
  3. HYDROARC 242/26 · Wrecks2026-09-18
    A 0.3 meter rock depth and a dangerous submerged rock are reported in Amundsen Gulf, Canada, at 70-32.05N 115-59.06W and 70-30.05N 116-04.70W.
  4. HYDROARC 178/25 · Wrecks2025-10-01
    Depths reported in Franklin Strait and McClintock Channel, Canada, range from 11.3 to 29.3 meters.
  5. HYDROARC 175/25 · Wrecks2025-09-29
    A reported depth of 33.6 meters in McClintock Channel, Canada at 76-40.36N 102-16.62W.
  6. HYDROARC 148/25 · Wrecks2025-08-31
    A depth of 13.6 meters is reported in Lancaster Sound, Canada at 74-38.63N 091-20.54W.

Longest in force

  1. HYDROARC 148/25 · Wrecks2025-08-31
    A depth of 13.6 meters is reported in Lancaster Sound, Canada at 74-38.63N 091-20.54W.
  2. HYDROARC 175/25 · Wrecks2025-09-29
    A reported depth of 33.6 meters in McClintock Channel, Canada at 76-40.36N 102-16.62W.
  3. HYDROARC 178/25 · Wrecks2025-10-01
    Depths reported in Franklin Strait and McClintock Channel, Canada, range from 11.3 to 29.3 meters.
  4. HYDROARC 242/26 · Wrecks2026-09-18
    A 0.3 meter rock depth and a dangerous submerged rock are reported in Amundsen Gulf, Canada, at 70-32.05N 115-59.06W and 70-30.05N 116-04.70W.
  5. HYDROARC 256/26 · Surveys2026-09-25
    A scientific mooring with a top float at 69 meters is established in Queen Maud Gulf, Canada, at 68-48.95N 105-06.53W.

By year

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By month (all years)

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By category · available archive

Nav aids6726%
Surveys5822%
Wrecks4919%
Other4718%
Incidents3513%
Exercises21%
Quakes10%
Derelicts10%

Archive · 254 cancelled

  1. HYDROLANT 2390/15 · Incidents2015-09-24 → 2015-09-25
    Vessel, four persons on board, overdue repulse bay (66-31-41N 086-13-21W) to lyon inlet (66-20-00N 083-40-00W)
  2. HYDROARC 311/15 · Incidents2015-09-24 → 2015-09-25
    Vessel, four persons on board, overdue repulse bay (66-31-41N 086-13-21W) to lyon inlet (66-20-00N 083-40-00W)
  3. HYDROARC 273/15 · Other2015-09-12 → 2015-09-13
    Mcts iqaluit remote station resolute 74-44.8N 095-00.2W inoperative
  4. HYDROARC 269/15 · Other2015-09-09 → 2015-09-10
    Mcts iqaluit remote station resolute 74-44.8N 095-00.2W unreliable
  5. HYDROARC 266/15 · Wrecks2015-09-08 → 2015-09-20
    9.3 meter shoal reported in 69-23.57N 094-02.41W
  6. HYDROARC 264/15 · Wrecks2015-09-08 → 2017-01-28
    Shoals reported: a. 3.5 meters in 69-28.59N 099-22.27W
  7. HYDROARC 259/15 · Other2015-09-04 → 2015-09-06
    Mcts iqaluit centre remote station cambridge bay 69-07.0N 105-03.2W transmit and receive services inoperative
  8. HYDROARC 257/15 · Other2015-09-03 → 2015-09-03
    Mcts iqaluit centre frequency 5803 khz at remote station cambridge bay 69-07.0N 105-03.2W inoperative
  9. HYDROARC 248/15 · Surveys2015-08-28 → 2017-10-13
    Scientific mooring established in 69-56.79N 097-54.58W
  10. HYDROARC 218/15 · Other2015-08-05 → 2015-08-05
    Mcts iqaluit remote station resolute 74-44.8N 095-00.2W inoperative
  11. HYDROLANT 1613/15 · Incidents2015-07-02 → 2015-07-03
    22 foot canoe, white hull with blue stripe, three persons on board, overdue salluit (62-12N 075-39W) to…
  12. HYDROARC 311/14 · Nav aids2014-10-21 → 2014-11-05
    Mcts iqaluit centre remote station resolute 74-44.8N 095-00.2W off air for season at 221600Z oct
  13. HYDROARC 284/14 · Nav aids2014-10-07 → 2014-10-07
    Mcts iqaluit remote station cambridge bay 69-07.0N 105-03.2W mf and hf transmit services inoperative
  14. HYDROARC 254/14 · Other2014-09-28 → 2014-09-28
    Mcts iqaluit remote station resolute 74-44.8N 095-00.2W unable to transmit radiofacsimile
  15. HYDROARC 225/14 · Incidents2014-09-19 → 2014-09-19
    18 foot M/V, red hull, two persons on board, overdue hall beach (68-46.6N 081-13.5W) to igloolik (69-22.6N…
  16. HYDROARC 211/14 · Incidents2014-09-12 → 2014-09-12
    18 foot M/V, red hull, five persons on board, possibly disabled
  17. HYDROARC 190/14 · Incidents2014-08-28 → 2014-08-28
    18 foot vessel, red hull, three persons on board, overdue taloyoak (69-32.2N 093-31.6W) to cape farrar…
  18. HYDROARC 123/14 · Other2014-07-18 → 2014-07-21
    Iqaluit mcts remote station resolute 74-44.8N 095-00.2W inoperative 0500Z to 0900Z daily until further notice
  19. HYDROARC 236/13 · Nav aids2013-10-16 → 2013-10-30
    Iqaluit mcts remote station cambridge bay 69-06.9N 105-00.9W off air for season at 162000Z oct
  20. NAVAREA IV 639/13 · Nav aids2013-10-13 → 2013-10-28
    Iqaluit mcts remote station resolute 74-44.8N 095-00.2W off air for season

Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.

The Northwestern Passages — navigational warnings — archive page 9 · seahazards