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
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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% |
| Derelicts | 1 | 0% |
| Mines | 1 | 0% |
| Icebergs | 1 | 0% |
Archive · 496 cancelled
- HYDROLANT 3729/19 · Nav aids2019-12-05 → 2020-01-16All navigational aids at platform 211/18-A 61-21.8N 001-34.8E inoperative
- HYDROARC 293/19 · Missiles2019-11-22 → 2019-12-12Hazardous operations, rocket launching 0700Z to 1230Z daily 25 nov thru 12 dec in areas bound by: a.…
- HYDROARC 223/19 · Exercises2019-09-20 → 2019-09-26Hazardous operations 1200Z to 1800Z sep daily 23 thru 27 sep in area bound by 69-17.7N 016-01.2E, 69-21.0N…
- HYDROLANT 2775/19 · Surveys2019-09-12 → 2019-10-15Scientific mooring, established in 62-01.60N 001-26.02E
- HYDROARC 207/19 · Surveys2019-09-11 → 2019-11-13Survey operations in progress until further notice by M/V eagle explorer towing 10050 meter long cable in…
- HYDROARC 191/19 · Exercises2019-08-27 → 2019-09-11Hazardous operations 1600Z to 2100Z aug daily 02 thru 13 sep in area bound by 68-56.40N 014-16.50E,…
- HYDROARC 189/19 · Nav aids2019-08-27 → 2019-08-29GPS jamming exercises 291030Z to 291130Z aug in area bound by 68-30N 013-00E, 70-30N 013-00E, 70-30N…
- HYDROARC 184/19 · Surveys2019-08-25 → 2019-09-01Survey operations in progress until further notice by M/V ramform vanguard towing 12 8000 meter long cables…
- HYDROARC 178/19 · Nav aids2019-08-20 → 2019-08-21GPS jamming exercises 211030Z to 211130Z aug in area bound by 68-30N 013-00E, 70-30N 013-00E, 70-30N…
- HYDROARC 171/19 · Exercises2019-08-10 → 2019-08-17Hazardous operations 0300Z to 1900Z daily 14 thru 17 aug in areas bound by: a. 67-25.0N 003-55.0E, 66-48.0N…
- HYDROLANT 2323/19 · Surveys2019-07-30 → 2019-08-25Survey operations in progress until further notice by M/V ramform vanguard towing 12 8000 meter long cables…
- HYDROLANT 2210/19 · Surveys2019-07-20 → 2019-08-24Survey operations in progress until further notice by M/V sw amundsen towing 12 7000 meter long cables in…
- HYDROARC 132/19 · Surveys2019-07-16 → 2019-11-01Survey operations in progress until 31 oct by M/V oceanic sirius towing 16 8000 meter long cables in area…
- HYDROARC 125/19 · Surveys2019-07-11 → 2019-10-16Survey operations 01 jul thru 15 oct by M/V polar duchess towing 12 six mile long cables in area bound by…
- HYDROARC 120/19 · Icebergs2019-07-08 → 2019-07-11Iceberg reported in 75-55.7N 016-19.6E at 081800Z jul
- HYDROARC 114/19 · Surveys2019-06-29 → 2019-07-11Survey operations 01 jul thru 15 oct by M/V polar duchess towing 12 six mile long cables in area bound by…
- HYDROLANT 1500/19 · Surveys2019-05-16 → 2019-07-13Survey operations in progress until further notice by M/V ramform vanguard towing 17 4600 meter long cables…
- HYDROARC 73/19 · Surveys2019-05-08 → 2019-09-21Survey operations 11 may thru 01 oct by M/V sanco swift towing 12 8100 meter long cables in area bound by…
- HYDROARC 72/19 · Missiles2019-05-03 → 2019-05-09Missile operations 1200Z to 1800Z daily 08 thru 11 may in area bound by 69-01.5N 015-29.4E, 69-03.3N…
- HYDROLANT 1315/19 · Surveys2019-04-29 → 2019-07-20Survey operations in progress until further notice by M/V sw amundsen towing 12 7000 meter long cables, in…
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.