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
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26
By month (all years)
J
F
M
A
M
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O
N
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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 154/15 · Cable ops2015-06-30 → 2015-11-01Seismic survey in progress until further notice by M/V bgp prospector towing ten 8000 meter long cables in…
- HYDROLANT 1336/15 · Cable ops2015-06-01 → 2015-08-11Seismic survey in progress until further notice by M/V geo coral towing 12 9100 meter long cables in area…
- HYDROLANT 1332/15 · Restricted2015-06-01 → 2017-01-27Navigation prohibited within 500 meters of 61-08.86N 000-47.17E
- HYDROLANT 1325/15 · Cable ops2015-05-31 → 2015-07-09Seismic survey in progress until further notice by M/V polar duchess towing 12 7050 meter long cables in: a.…
- HYDROARC 96/15 · Cable ops2015-05-31 → 2015-07-09Seismic survey in progress until further notice by M/V polar duchess towing 12 7050 meter long cables in: a.…
- HYDROLANT 1220/15 · Exercises2015-05-19 → 2015-05-19Hazardous operations
- HYDROARC 84/15 · Exercises2015-05-19 → 2015-05-19Hazardous operations
- HYDROLANT 1069/15 · Nav aids2015-05-02 → 2015-05-05Loran-c station vaerlandet (61-18N 004-42E), rates 9007-Y and 7499-Y, off air
- HYDROLANT 1068/15 · Missiles2015-05-02 → 2015-05-06Hazardous operations 1200Z to 2100Z daily 06 and 07 may in area bound by 69-01.8N 015-29.7E, 69-03.5N…
- HYDROARC 74/15 · Missiles2015-05-02 → 2015-05-06Hazardous operations 1200Z to 2100Z daily 06 and 07 may in area bound by 69-01.8N 015-29.7E, 69-03.5N…
- HYDROLANT 944/15 · Cable ops2015-04-20 → 2015-05-31Seismic survey in progress until further notice by M/V polar duchess towing 12 7050 meter long cables in: a.…
- HYDROARC 63/15 · Cable ops2015-04-19 → 2015-05-31Seismic survey in progress until further notice by M/V polar duchess towing 12 7050 meter long cables in: a.…
- HYDROLANT 673/15 · Missiles2015-03-19 → 2015-03-31Hazardous operations 1600Z to 2300Z daily 23 mar thru 01 apr: a. within three miles of 69-17.6N 016-01.1E…
- HYDROARC 40/15 · Missiles2015-03-19 → 2015-03-31Hazardous operations 1600Z to 2300Z daily 23 mar thru 01 apr: a. within three miles of 69-17.6N 016-01.1E…
- HYDROARC 34/15 · Missiles2015-03-09 → 2015-03-13Hazardous operations 0600Z to 2000Z daily 12 and 13 mar in area bound by 70-45N 022-15E, 71-10N 021-40E,…
- HYDROLANT 499/15 · Missiles2015-02-28 → 2015-03-15Hazardous operations 1900Z to 0200Z commencing daily 03 thru 18 mar: a. within nine miles of 69-17.64N…
- HYDROARC 27/15 · Missiles2015-02-28 → 2015-03-15Hazardous operations 1900Z to 0200Z commencing daily 03 thru 18 mar: a. within nine miles of 69-17.64N…
- HYDROLANT 401/15 · Nav aids2015-02-16 → 2015-02-17Loran-c station vaerlandet 61-18N 004-42E, rates 9007Y and 7499Y, off air 170800Z to 171500Z feb
- HYDROLANT 282/15 · Missiles2015-02-02 → 2015-02-20Hazardous operations 1600Z to 2300Z daily 07 thru 24 feb in areas bound by: a. 69-31.8N 015-29.2E, 69-35.5N…
- HYDROARC 9/15 · Missiles2015-02-02 → 2015-02-20Hazardous operations 1600Z to 2300Z daily 07 thru 24 feb in areas bound by: a. 69-31.8N 015-29.2E, 69-35.5N…
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.