Norwegian Sea
IHO sea area 6 · -14° to 26° E, 61° to 77° N
- in force
- 1
- last 12 months
- 13
- archive messages
- 497
- categories
- 15
What the archive shows
497 messages are recorded since 1999-04-21 for the Norwegian Sea. The selection uses the IHO sea area; a message may describe an exercise, equipment outage or continuing operation as well as a hazard report.
Cable ops accounts for 134 of 497 recorded messages (27%), 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.
- An older warning still listed in force · issued 2026-08-28 09:28ZSurvey operations in Norwegian Sea by Amazon Conqueror towing twelve 10,000-meter cables, seven mile berth requested.
In force now · 1
Longest in force
By year
99
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
By month (all years)
J
F
M
A
M
J
J
A
S
O
N
D
By category · available archive
| Cable ops | 134 | 27% |
| Surveys | 109 | 22% |
| Missiles | 85 | 17% |
| Exercises | 62 | 12% |
| Nav aids | 31 | 6% |
| Quakes | 17 | 3% |
| Ordnance | 13 | 3% |
| Debris | 12 | 2% |
| Other | 12 | 2% |
| Containers | 9 | 2% |
| Incidents | 6 | 1% |
| Restricted | 4 | 1% |
| Mines | 1 | 0% |
| Derelicts | 1 | 0% |
| Icebergs | 1 | 0% |
Archive · 496 cancelled
- HYDROARC 203/17 · Exercises2017-08-09 → 2017-08-25Torpedo exercises 140800Z to 251530Z aug in areas within ten miles of: a. 70-10N 015-00E
- HYDROARC 201/17 · Surveys2017-08-09 → 2017-09-03Survey operations in progress until further notice by M/V wg amundsen towing 12 6000 meter long cables in…
- HYDROLANT 2449/17 · Surveys2017-08-09 → 2017-09-03Survey operations in progress until further notice by M/V wg amundsen towing 12 6000 meter long cables in…
- HYDROLANT 2406/17 · Missiles2017-08-04 → 2017-08-08Missile operations 080500Z to 081700Z aug in area bound by 69-31.8N 013-41.5E, 69-51.8N 012-51.0E, 70-17.6N…
- HYDROARC 186/17 · Missiles2017-08-04 → 2017-08-08Missile operations 080500Z to 081700Z aug in area bound by 69-31.8N 013-41.5E, 69-51.8N 012-51.0E, 70-17.6N…
- HYDROLANT 2322/17 · Surveys2017-07-27 → 2017-08-09Survey operations in progress until further notice by M/V wg amundsen towing 12 6000 meter long cables in…
- HYDROARC 170/17 · Surveys2017-07-27 → 2017-08-09Survey operations in progress until further notice by M/V wg amundsen towing 12 6000 meter long cables in…
- HYDROLANT 2275/17 · Surveys2017-07-22 → 2017-07-30Survey operations in progress until further notice by M/V wg magellan in area bound by 61-27.8N 003-44.3E,…
- HYDROARC 161/17 · Surveys2017-07-22 → 2017-07-27Survey operations in progress until further notice by M/V wg amundsen in area bound by 64-32.4N 007-24.1E,…
- HYDROLANT 2273/17 · Surveys2017-07-22 → 2017-07-27Survey operations in progress until further notice by M/V wg amundsen in area bound by 64-32.4N 007-24.1E,…
- HYDROLANT 2244/17 · Surveys2017-07-19 → 2017-09-21Survey operations 20 jul thru 20 sep by M/V sanco swift towing 12 9000 meter long cables in area bound by…
- HYDROARC 156/17 · Surveys2017-07-19 → 2017-09-21Survey operations 20 jul thru 20 sep by M/V sanco swift towing 12 9000 meter long cables in area bound by…
- HYDROLANT 2140/17 · Surveys2017-07-10 → 2017-10-07Survey operations 13 jul until further notice by M/V geo coral towing 14 7000 meter cables in area bound by…
- HYDROARC 138/17 · Surveys2017-07-10 → 2017-10-07Survey operations 13 jul until further notice by M/V geo coral towing 14 7000 meter cables in area bound by…
- HYDROARC 121/17 · Surveys2017-06-28 → 2017-09-24Survey operations in progress until further notice by M/V polarcus alima towing 12 9000 meter long cables in…
- HYDROLANT 1990/17 · Surveys2017-06-28 → 2017-09-24Survey operations in progress until further notice by M/V polarcus alima towing 12 9000 meter long cables in…
- HYDROARC 109/17 · Surveys2017-06-17 → 2017-07-21Survey operations 10 jun thru 20 jul by M/V wg columbus towing eight 3800 meter long cables in area bound by…
- HYDROLANT 1883/17 · Surveys2017-06-17 → 2017-07-21Survey operations 10 jun thru 20 jul by M/V wg columbus towing eight 3800 meter long cables in area bound by…
- HYDROLANT 1872/17 · Surveys2017-06-16 → 2017-07-16Survey operations in progress until further notice by M/V sanco swift towing 12 9200 meter long cables in…
- HYDROLANT 1809/17 · Restricted2017-06-09 → 2017-10-20Navigation prohibited within .27 miles of 61-12.92N 000-45.15E
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.