The Northwestern Passages

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

in force
3
last 12 months
3
since 2006
212
categories
6

In force now · 3

  1. HYDROARC 178/25 · Wrecks2025-10-01
    Depths reported in Franklin Strait and McClintock Channel, Canada, range from 11.3 to 29.3 meters.
  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 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.

By year

06
08
10
11
12
13
14
15
16
17
18
19
20
21
22
23
25

By month (all years)

J
F
M
A
M
J
J
A
S
O
N
D

By category · since 1997

Nav aids6732%
Wrecks4823%
Other4722%
Surveys4722%
Exercises21%
Derelicts10%

Archive · 209 cancelled

  1. 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.
  2. 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.
  3. HYDROARC 206/21 · Wrecks2021-09-01 → 2021-09-02
    27.8 meter shoal in 68-58.9N 101-08.3W
  4. HYDROARC 205/21 · Wrecks2021-08-31 → 2022-03-18
    15.8 meter shoal in 69-01.49N 100-58.38W
  5. HYDROARC 203/21 · Wrecks2021-08-31 → 2022-03-18
    Shoals reported in: a. ten meters, 68-36.948N 095-25.038W
  6. HYDROARC 197/21 · Other2021-08-20 → 2021-09-17
    Mcts iqaluit remote station resolute 74-45N 094-58W unreliable
  7. HYDROARC 194/21 · Nav aids2021-08-20 → 2021-08-20
    Mcts iqaluit remote station resolute 74-45N 094-58W off air
  8. HYDROARC 192/21 · Nav aids2021-08-18 → 2021-08-20
    Mcts iqaluit remote station resolute 74-45N 094-58W off air
  9. HYDROARC 177/21 · Nav aids2021-08-10 → 2021-08-17
    Mcts iqaluit remote station resolute 74-45N 094-58W off air
  10. HYDROARC 173/21 · Nav aids2021-08-09 → 2021-08-09
    Mcts iqaluit remote station resolute 74-45N 094-58W off air
  11. HYDROARC 172/21 · Nav aids2021-08-07 → 2021-08-09
    Mcts iqaluit remote station resolute 74-45N 094-58W hf rt transmit frequency 4363 khz off air
  12. HYDROARC 162/21 · Nav aids2021-07-31 → 2021-08-05
    Mcts iqaluit remote station resolute 74-45N 094-58W off air
  13. HYDROARC 135/21 · Nav aids2021-07-12 → 2021-07-31
    Mcts iqaluit remote station resolute 74-45N 094-58W hf dsc and r/t transmit off air
  14. HYDROARC 125/21 · Nav aids2021-07-04 → 2021-07-05
    Mcts iqaluit remote stations r/t transmit services inoperative: a. iqaluit 63-43.8N 068-32.7W
  15. HYDROARC 124/21 · Nav aids2021-07-04 → 2021-07-04
    Mcts iqaluit remote stations r/t transmit services inoperative: a. resolute 74-45N 094-58W
  16. HYDROARC 247/20 · Nav aids2020-10-19 → 2020-10-23
    Mcts iqaluit remote station resolute 74-45N 094-58W off air
  17. HYDROARC 211/20 · Nav aids2020-09-26 → 2020-10-19
    Mcts iqaluit remote station resolute 74-45N 094-58W off air
  18. HYDROARC 204/20 · Surveys2020-09-22 → 2020-10-23
    Scientific mooring, top float 12 meters below surface, established in 70-34.7N 123-38.2W
  19. HYDROARC 193/20 · Nav aids2020-09-13 → 2020-09-14
    Mcts iqaluit remote station cambridge bay 69-07N 105-01W off air
  20. HYDROARC 169/20 · Nav aids2020-09-04 → 2020-09-04
    Mcts iqaluit remote station resolute 74-45N 094-58W mf, hf, hf-dsc and nbdp services 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.