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
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01
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03
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06
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08
09
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11
12
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14
15
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18
19
20
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By month (all years)
J
F
M
A
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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% |
| Derelicts | 1 | 0% |
| Mines | 1 | 0% |
| Icebergs | 1 | 0% |
Archive · 496 cancelled
- HYDROLANT 2591/20 · Surveys2020-08-21 → 2020-10-07Survey operations in progress until further notice by M/V sw amundsen towing twelve 8000 meter long cables…
- HYDROPAC 2431/20 · Missiles2020-08-19 → 2020-09-05Missile operations 2100Z to 0800Z daily 24 aug thru 04 sep in area bound by 58-55-06N 178-22-30E, 59-25-06N…
- HYDROLANT 2520/20 · Nav aids2020-08-14 → 2020-12-18All navigational aids at platform 211/18-A 61-21.8N 001-34.8E inoperative
- HYDROLANT 2417/20 · Surveys2020-08-02 → 2020-09-25Survey operations in progress until further notice by M/V bgp prospector towing ten 8000 meter long cables…
- HYDROARC 107/20 · Surveys2020-07-05 → 2020-09-12Survey operations in progress until 30 sep by M/V ramform tethys towing 16 10000 meter long cables in area…
- HYDROLANT 2134/20 · Nav aids2020-07-03 → 2020-08-14All navigational aids at platform 211/18-A 61-21.8N 001-34.8E inoperative
- HYDROLANT 2110/20 · Nav aids2020-07-01 → 2020-07-03All navigational aids at platform 211/18-A 61-21.8N 001-34.8E inoperative
- HYDROARC 100/20 · Missiles2020-06-30 → 2020-07-05Missile operations 0500Z to 1900Z daily 02 thru 05 jul in area bound by 69-27N 010-00E, 69-27N 011-30E,…
- HYDROARC 92/20 · Nav aids2020-06-24 → 2020-06-28GPS jamming exercises: a. 261025Z to 261200Z and 271030Z to 271200Z jun in area bound by 69-27N 015-30E,…
- HYDROARC 89/20 · Surveys2020-06-20 → 2020-07-26Survey operations in progress until 15 aug by M/V sw amundsen each towing eight 4400 meter long cables, in…
- HYDROARC 74/20 · Surveys2020-06-03 → 2020-06-28Survey operations in progress until 31 jul by M/V ramform tethys towing 14 4000 meter long cables in area…
- HYDROLANT 1709/20 · Nav aids2020-05-20 → 2020-07-01All navigational aids at platform 211/18-A 61-21.8N 001-34.8E inoperative
- HYDROARC 63/20 · Exercises2020-05-08 → 2020-05-13Hazardous operations 1800Z to 2359Z daily 11 thru 15 may in area bound by 69-17.5N 015-58.5E, 69-19.0N…
- HYDROLANT 1533/20 · Surveys2020-05-05 → 2020-09-05Survey operations in progress until further notice by M/V polarcus adira towing 12 11000 meter long cables…
- HYDROLANT 1380/20 · Surveys2020-04-20 → 2020-05-25Survey operations in progress until further notice by M/V ramform tethys towing 12 9200 meter long cables in…
- HYDROLANT 1281/20 · Nav aids2020-04-10 → 2020-05-20All navigational aids at platform 211/18-A 61-21.8N 001-34.8E inoperative
- HYDROARC 31/20 · Exercises2020-03-02 → 2020-03-19Hazardous operations 021200Z to 182300Z mar in area bound by 70-02.5N 015-23.3E, 70-02.5N 020-03.8E,…
- HYDROLANT 733/20 · Nav aids2020-02-27 → 2020-04-10All navigational aids at platform 211/18-A 61-21.8N 001-34.8E inoperative
- HYDROARC 25/20 · Debris2020-02-15 → 2020-02-18Buoy adrift in vicinity 70-28.7N 017-44.9E at 151710Z feb
- HYDROARC 18/20 · Missiles2020-02-02 → 2020-02-07Missile operations 0300Z to 1700Z daily 05 thru 07 feb in area bound by 66-00N 003-00E, 66-00N 006-00E,…
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.