Wrecks & obstructions in the The Northwestern Passages

Dangerous wrecks, shoals and submerged obstructions.

in force
3
last 12 months
3
vs previous 12 (0)
—
since 2008
48

Coverage note: the NGA archive ends 2024-05 and live collection began 2026-08-17. Warnings issued in between are here only if they were still in force when collection started, so 2024–2026 are under-counted.

In force now · 3

  1. HYDROARC 178/25in force2025-10-01
    Depths reported in Franklin Strait and McClintock Channel, Canada, range from 11.3 to 29.3 meters.
    Franklin Strait · Mcclintock Channel · Canada
  2. HYDROARC 175/25in force2025-09-29
    A reported depth of 33.6 meters in McClintock Channel, Canada at 76-40.36N 102-16.62W.
    Mcclintock Channel · Canada
  3. HYDROARC 148/25in force2025-08-31
    A depth of 13.6 meters is reported in Lancaster Sound, Canada at 74-38.63N 091-20.54W.
    Lancaster Sound · Canada

Longest in force

  1. HYDROARC 148/25in force2025-08-31 · 356 d
    A depth of 13.6 meters is reported in Lancaster Sound, Canada at 74-38.63N 091-20.54W.
    Lancaster Sound · Canada
  2. HYDROARC 175/25in force2025-09-29 · 326 d
    A reported depth of 33.6 meters in McClintock Channel, Canada at 76-40.36N 102-16.62W.
    Mcclintock Channel · Canada
  3. HYDROARC 178/25in force2025-10-01 · 325 d
    Depths reported in Franklin Strait and McClintock Channel, Canada, range from 11.3 to 29.3 meters.
    Franklin Strait · Mcclintock Channel · Canada

By year

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By month (all years)

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Other hazards in the The Northwestern Passages

Archive · 45 cancelled

  1. HYDROARC 272/232023-10-27 → 2026-08-14
    A 13.9 meter shoal is located in Lancaster Sound, Canada at 73 degrees 43 minutes north, 81 degrees 13 minutes west.
    Lancaster Sound · Canada
  2. HYDROARC 212/232023-09-12 → 2023-09-26
    Shoals reported: a. 12.4 meters in 69-53.47N 083-23.07W
    Canada
  3. HYDROARC 325/222022-10-18 → 2023-04-28
    Shoals reported in: a. 13.2 meters, 68-25.76N 096-37.35W
    Canada
  4. HYDROARC 293/222022-09-26 → 2026-08-14
    Shoals reported in McClintock Channel, Canada, at multiple positions with depths from 20.2 to 31.7 meters.
    Mcclintock Channel · Canada
  5. HYDROARC 287/222022-09-22 → 2022-09-23
    4.2 meter shoal in 69-50.27N 124-16.28W
    Amundsen Gulf · Canada
  6. HYDROARC 262/222022-09-08 → 2026-08-14
    A 14-meter shoal exists at 68 degrees 36.32 minutes north, 95 degrees 21.40 minutes west, in Canada.
    Canada
  7. HYDROARC 260/222022-09-06 → 2026-08-14
    A 16-meter shoal is located at 68-19.50N 100-46.86W in Queen Maud Gulf, Canada.
    Queen Maud Gulf · Canada
  8. HYDROARC 251/222022-08-30 → 2023-04-28
    22 meter depth reported in 69-39.05N 120-45.29W
    Amundsen Gulf · Canada
  9. HYDROARC 208/212021-09-02 → 2026-08-14
    A 13.7 meter shoal is located in Queen Maud Gulf at 69-01.48N 100-58.36W.
    Queen Maud Gulf · Canada
  10. HYDROARC 207/212021-09-02 → 2026-08-14
    A 23.8-meter shoal exists in Queen Maud Gulf, Canada at 68-58.95N 101-08.32W; previous warning canceled.
    Queen Maud Gulf · Canada
  11. HYDROARC 206/212021-09-01 → 2021-09-02
    27.8 meter shoal in 68-58.9N 101-08.3W
    Queen Maud Gulf · Canada
  12. HYDROARC 205/212021-08-31 → 2022-03-18
    15.8 meter shoal in 69-01.49N 100-58.38W
    Queen Maud Gulf · Canada
  13. HYDROARC 203/212021-08-31 → 2022-03-18
    Shoals reported in: a. ten meters, 68-36.948N 095-25.038W
    Gjoa Haven · Canada
  14. HYDROARC 214/192019-09-13 → 2019-10-25
    Three meter shoal in 69-08.65N 113-47.87W
    Dolphin and Union Strait · Canada
  15. HYDROARC 197/192019-09-03 → 2019-09-13
    5.4 meter shoal in 68-28.50N 111-03.66W
    Coronation Gulf · Canada
  16. HYDROARC 176/192019-08-19 → 2019-09-13
    6.3 meter shoal in 68-35.41N 111-01.28W
    Coronation Gulf · Canada
  17. HYDROARC 229/182018-09-11 → 2019-06-14
    Shoals reported in: a. 8.2 metres, 68-38.5N 101-46.1W
    Queen Maud Gulf · Canada
  18. HYDROARC 225/182018-09-06 → 2019-06-14
    Shoals reported in: a. 24.5 meters 69-01.4N 105-12.8W
    Deese Strait · Canada
  19. HYDROARC 214/182018-08-29 → 2018-09-06
    Shoals reported in: a. 24.5 meters 69-01.4N 105-12.8W
    Deese Strait · Canada
  20. HYDROARC 212/182018-08-28 → 2018-11-02
    5.2 meter depth reported in 69-43N 091-21W
    Gulf of Boothia · Canada
  21. HYDROARC 267/172017-09-12 → 2019-01-04
    4.27 meter depth reported in 68-24.82N 096-21.65W
    Canada
  22. HYDROARC 228/172017-08-26 → 2019-01-04
    Shoals reported: a. 6.0 meters in 69-30.76N 094-59.05W
    Canada
  23. HYDROARC 337/162016-12-08 → 2017-04-07
    Obstruction, two meters below surface, in 68-36.86N 100-13.36W
    Queen Maud Gulf · Canada-north Coast
  24. HYDROARC 238/162016-09-14 → 2016-09-14
    Four persons stranded ashore requesting assistance vicinity 73-00N 080-00W
    Arctic · Baffin Bay · Lancaster Sound · Canada-north Coast
  25. HYDROARC 229/162016-09-11 → 2017-04-07
    26.4 meter shoal in 71-45.27N 096-34.24W
    Arctic · Peel Sound · Canada-north Coast
  26. HYDROARC 202/162016-09-02 → 2016-12-07
    Obstruction, two meters below surface, in 68-36.86N 100-13.36W
    Arctic · Queen Maud Gulf · Canada-north Coast
  27. HYDROARC 266/152015-09-08 → 2015-09-20
    9.3 meter shoal reported in 69-23.57N 094-02.41W
    Arctic · Spence Bay
  28. HYDROARC 264/152015-09-08 → 2017-01-28
    Shoals reported: a. 3.5 meters in 69-28.59N 099-22.27W
    Arctic · Mcclintock Channel
  29. HYDROARC 143/132013-09-02 → 2013-09-03
    Seven persons stranded on ice in 71-45.89N 095-32.76W
    Arctic · Canada-north Coast · Franklin Strait
  30. HYDROARC 133/132013-08-27 → 2014-01-19
    Alexandra Strait
    Canada-north Coast
  31. HYDROARC 132/132013-08-27 → 2014-01-19
    Alexandra Strait
    Canada-north Coast
  32. HYDROARC 118/132013-08-16 → 2014-01-19
    Amundsen Gulf
    Arctic · Canada-north Coast
  33. HYDROARC 178/112011-09-17 → 2012-07-01
    Nga chart 15888 (0 ed)
    Arctic · Canada-north Coast · Requisite Channel
  34. HYDROARC 171/112011-09-16 → 2011-09-17
    Nga chart 15887 (0 ed)
    Arctic · Canada-north Coast · Requisite Channel
  35. HYDROARC 167/112011-09-14 → 2011-09-15
    Nga chart 15662 (0 ed)
    Arctic · Canada-north Coast · Queen Maud Gulf
  36. HYDROARC 161/112011-09-08 → 2013-07-27
    Roch Basin
    Arctic · Canada · St
  37. HYDROARC 144/112011-08-28 → 2012-07-01
    Nga chart 15744 (1ST ed)
    Arctic · Canada-north Coast · Franklin Strait
  38. HYDROARC 73/102010-09-06 → 2011-04-30
    Nga chart 15953 (0 ed)
    Arctic · Coronation Gulf
  39. HYDROARC 71/102010-09-05 → 2014-06-01
    Coronation Gulf
    Arctic
  40. HYDROARC 21/102010-07-03 → 2011-10-22
    Nga chart 15641 (0 ed)
    Arctic · Baffin Bay · Eclipse Sound
  41. HYDROARC 2/102010-07-02 → 2011-08-06
    Nga chart 15564 (1ST ed)
    Arctic · Dease Strait
  42. HYDROARC 1/102010-07-02 → 2010-09-06
    Nga chart 15953 (0 ed)
    Arctic · Coronation Gulf
  43. HYDROARC 18/082008-11-25 → 2010-07-03
    Nga chart 15630 (1ST ed)
  44. HYDROARC 15/082008-09-06 → 2010-07-02
    Nga chart 15953 (0 ed)
  45. HYDROARC 14/082008-09-06 → 2010-07-02
    Nga chart 15564 (1ST ed)

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

Wrecks & obstructions in the The Northwestern Passages · seahazards