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. HYDROARC 223/22 · Surveys2022-08-19 → 2026-08-14
    A scientific mooring with its top float 15 meters below the surface has been established in Coronation Gulf, Canada at 67-53.89N 111-21.21W.
  2. HYDROARC 210/22 · Surveys2022-08-16 → 2022-10-03
    Scientific mooring, top float two meters above sea floor, established in 72-02.18N 080-33.37W
  3. HYDROARC 188/22 · Other2022-08-04 → 2022-10-24
    Mcts iqaluit remote station resolute 74-44.78N 095-00.18W hf frequency 4363 khz unable to transmit
  4. HYDROARC 174/22 · Nav aids2022-07-23 → 2022-08-01
    Mcts iqaluit remote station cambridge bay 69-07.00N 105-01.00W mf and hf transmit services off air
  5. HYDROARC 173/22 · Nav aids2022-07-23 → 2022-07-23
    Mcts iqaluit remote station cambridge bay 69-07.00N 105-01.00W transmit services off air
  6. HYDROARC 156/22 · Incidents2022-07-12 → 2022-07-29
    Vessel, four persons on board, overdue igloolik (69-22.35N 081-49.48W) to tern island (69-32.74N 080-48.72W)…
  7. HYDROARC 148/22 · Incidents2022-07-08 → 2022-07-22
    20 foot vessel, white hull, three persons on board, overdue from igloolik (69-23.00N 081-48.00W)
  8. HYDROARC 299/21 · Nav aids2021-10-25 → 2021-12-31
    Mcts iqaluit remote station resolute 74-45N 094-58W mf and hf off air
  9. HYDROARC 270/21 · Surveys2021-10-07 → 2022-03-25
    Scientific mooring, top float 37 meters, established in 70-42.59N 117-51.21W
  10. HYDROARC 263/21 · Nav aids2021-10-02 → 2021-10-02
    Mcts iqaluit remote station resolute 74-45N 094-58W mf and hf services off air
  11. HYDROARC 243/21 · Nav aids2021-09-21 → 2021-11-09
    Mcts iqaluit remote station resolute 74-45N 094-58W off air
  12. HYDROARC 232/21 · Surveys2021-09-15 → 2022-03-18
    Scientific mooring, top float 630 meters below surface, established 72-44.46N 076-19.73W
  13. HYDROARC 231/21 · Surveys2021-09-15 → 2021-09-17
    Scientific mooring, top float 675 meters below surface, established 72-46.4N 078-40.2W
  14. HYDROARC 208/21 · Wrecks2021-09-02 → 2026-08-14
    A 13.7 meter shoal is located in Queen Maud Gulf at 69-01.48N 100-58.36W.
  15. HYDROARC 207/21 · Wrecks2021-09-02 → 2026-08-14
    A 23.8-meter shoal exists in Queen Maud Gulf, Canada at 68-58.95N 101-08.32W; previous warning canceled.
  16. HYDROARC 206/21 · Wrecks2021-09-01 → 2021-09-02
    27.8 meter shoal in 68-58.9N 101-08.3W
  17. HYDROARC 205/21 · Wrecks2021-08-31 → 2022-03-18
    15.8 meter shoal in 69-01.49N 100-58.38W
  18. HYDROARC 203/21 · Wrecks2021-08-31 → 2022-03-18
    Shoals reported in: a. ten meters, 68-36.948N 095-25.038W
  19. HYDROARC 197/21 · Other2021-08-20 → 2021-09-17
    Mcts iqaluit remote station resolute 74-45N 094-58W unreliable
  20. HYDROARC 194/21 · Nav aids2021-08-20 → 2021-08-20
    Mcts iqaluit remote station resolute 74-45N 094-58W off air

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