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)

J
F
M
A
M
J
J
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O
N
D

By category · available archive

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

Archive · 254 cancelled

  1. HYDROARC 250/16 · Incidents2016-09-19 → 2016-09-19
    18 foot vessel, red hull, four persons on board, overdue ulukhaktok (70-43.47N 117-46.81W) and return
  2. HYDROARC 243/16 · Incidents2016-09-16 → 2016-09-16
    24 foot vessel, silver hull, two persons on board, overdue arctic bay (73-02N 085-09W) and return
  3. HYDROARC 238/16 · Wrecks2016-09-14 → 2016-09-14
    Four persons stranded ashore requesting assistance vicinity 73-00N 080-00W
  4. HYDROARC 229/16 · Wrecks2016-09-11 → 2017-04-07
    26.4 meter shoal in 71-45.27N 096-34.24W
  5. HYDROARC 213/16 · Other2016-09-06 → 2016-09-07
    Mcts iqaluit remote station resolute 74-44.8N 095-00.2W inoperative
  6. HYDROARC 211/16 · Other2016-09-05 → 2016-09-06
    Mcts iqaluit remote station resolute 74-44.8N 095-00.2W unreliable
  7. HYDROARC 208/16 · Other2016-09-04 → 2016-09-05
    Mcts iqaluit remote station resolute 74-44.8N 095-00.2W inoperative
  8. HYDROARC 202/16 · Wrecks2016-09-02 → 2016-12-07
    Obstruction, two meters below surface, in 68-36.86N 100-13.36W
  9. HYDROARC 194/16 · Incidents2016-08-30 → 2016-08-30
    53 foot S/V eagle quest 2, blue and white hull, four persons on board, aground vicinity 68-36.86N 100-13.36W
  10. HYDROARC 185/16 · Incidents2016-08-26 → 2016-08-26
    18 foot vessel, silver hull, four persons on board, overdue 67-46.5N 081-51.0W to hall beach (68-46.0N…
  11. HYDROARC 164/16 · Other2016-08-12 → 2016-08-16
    Mcts iqaluit remote station resolute 74-44.8N 095-00.2W frequency 2182 khz inoperative
  12. HYDROARC 163/16 · Other2016-08-11 → 2016-08-18
    Mcts iqaluit centre remote station resolute 74-44.8N 095-00.2W radiofacsimile frequency 7710 khz inoperative
  13. HYDROARC 156/16 · Nav aids2016-08-06 → 2016-08-06
    Mcts iqaluit remote station cambridge bay 69-07N 105-01W mf and hf receive services inoperative until…
  14. HYDROARC 129/16 · Nav aids2016-07-15 → 2016-08-13
    Mcts iqaluit remote station resolute 74-44.8N 095-00.2W r/t services, nbdp and dsc receive services…
  15. HYDROARC 123/16 · Other2016-07-09 → 2016-07-15
    Mcts iqaluit centre remote station cambridge bay 69-07N 105-01W unable to receive mf r/t frequency 4071 khz
  16. HYDROARC 382/15 · Nav aids2015-10-28 → 2015-11-10
    Mcts resolute centre 74-45N 094-58W broadcasts off air 290400Z oct for season
  17. HYDROARC 349/15 · Incidents2015-10-04 → 2015-11-01
    23 foot vessel, white hull, three persons on board, overdue to arctic bay (73-02-11N 085-09-09W)
  18. HYDROARC 347/15 · Other2015-10-03 → 2015-11-01
    Mcts iqaluit remote station resolute 74-44.8N 095-00.2W unable to transmit radiofacsimile
  19. HYDROARC 346/15 · Other2015-10-03 → 2015-10-03
    Mcts iqaluit remote station resolute 74-44.8N 095-00.2W transmit services inoperative
  20. HYDROARC 312/15 · Nav aids2015-09-24 → 2016-08-23
    Cache point RACON 68-39.3N 113-25.2W inoperative

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 8 · seahazards