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
- HYDROARC 178/25 · Wrecks2025-10-01Depths reported in Franklin Strait and McClintock Channel, Canada, range from 11.3 to 29.3 meters.
- HYDROARC 175/25 · Wrecks2025-09-29A reported depth of 33.6 meters in McClintock Channel, Canada at 76-40.36N 102-16.62W.
- HYDROARC 148/25 · Wrecks2025-08-31A depth of 13.6 meters is reported in Lancaster Sound, Canada at 74-38.63N 091-20.54W.
Longest in force
- HYDROARC 148/25 · Wrecks2025-08-31A depth of 13.6 meters is reported in Lancaster Sound, Canada at 74-38.63N 091-20.54W.
- HYDROARC 175/25 · Wrecks2025-09-29A reported depth of 33.6 meters in McClintock Channel, Canada at 76-40.36N 102-16.62W.
- HYDROARC 178/25 · Wrecks2025-10-01Depths 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 aids | 67 | 32% |
| Wrecks | 48 | 23% |
| Other | 47 | 22% |
| Surveys | 47 | 22% |
| Exercises | 2 | 1% |
| Derelicts | 1 | 0% |
Archive · 209 cancelled
- HYDROARC 213/16 · Other2016-09-06 → 2016-09-07Mcts iqaluit remote station resolute 74-44.8N 095-00.2W inoperative
- HYDROARC 211/16 · Other2016-09-05 → 2016-09-06Mcts iqaluit remote station resolute 74-44.8N 095-00.2W unreliable
- HYDROARC 208/16 · Other2016-09-04 → 2016-09-05Mcts iqaluit remote station resolute 74-44.8N 095-00.2W inoperative
- HYDROARC 202/16 · Wrecks2016-09-02 → 2016-12-07Obstruction, two meters below surface, in 68-36.86N 100-13.36W
- HYDROARC 164/16 · Other2016-08-12 → 2016-08-16Mcts iqaluit remote station resolute 74-44.8N 095-00.2W frequency 2182 khz inoperative
- HYDROARC 163/16 · Other2016-08-11 → 2016-08-18Mcts iqaluit centre remote station resolute 74-44.8N 095-00.2W radiofacsimile frequency 7710 khz inoperative
- HYDROARC 156/16 · Nav aids2016-08-06 → 2016-08-06Mcts iqaluit remote station cambridge bay 69-07N 105-01W mf and hf receive services inoperative until…
- HYDROARC 129/16 · Nav aids2016-07-15 → 2016-08-13Mcts iqaluit remote station resolute 74-44.8N 095-00.2W r/t services, nbdp and dsc receive services…
- HYDROARC 123/16 · Other2016-07-09 → 2016-07-15Mcts iqaluit centre remote station cambridge bay 69-07N 105-01W unable to receive mf r/t frequency 4071 khz
- HYDROARC 382/15 · Nav aids2015-10-28 → 2015-11-10Mcts resolute centre 74-45N 094-58W broadcasts off air 290400Z oct for season
- HYDROARC 347/15 · Other2015-10-03 → 2015-11-01Mcts iqaluit remote station resolute 74-44.8N 095-00.2W unable to transmit radiofacsimile
- HYDROARC 346/15 · Other2015-10-03 → 2015-10-03Mcts iqaluit remote station resolute 74-44.8N 095-00.2W transmit services inoperative
- HYDROARC 312/15 · Nav aids2015-09-24 → 2016-08-23Cache point RACON 68-39.3N 113-25.2W inoperative
- HYDROARC 273/15 · Other2015-09-12 → 2015-09-13Mcts iqaluit remote station resolute 74-44.8N 095-00.2W inoperative
- HYDROARC 269/15 · Other2015-09-09 → 2015-09-10Mcts iqaluit remote station resolute 74-44.8N 095-00.2W unreliable
- HYDROARC 266/15 · Wrecks2015-09-08 → 2015-09-209.3 meter shoal reported in 69-23.57N 094-02.41W
- HYDROARC 264/15 · Wrecks2015-09-08 → 2017-01-28Shoals reported: a. 3.5 meters in 69-28.59N 099-22.27W
- HYDROARC 259/15 · Other2015-09-04 → 2015-09-06Mcts iqaluit centre remote station cambridge bay 69-07.0N 105-03.2W transmit and receive services inoperative
- HYDROARC 257/15 · Other2015-09-03 → 2015-09-03Mcts iqaluit centre frequency 5803 khz at remote station cambridge bay 69-07.0N 105-03.2W inoperative
- HYDROARC 248/15 · Surveys2015-08-28 → 2017-10-13Scientific mooring established in 69-56.79N 097-54.58W
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.