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.

In force now · 1

  1. HYDROARC 191/26 · Surveys2026-08-28
    Survey operations in Norwegian Sea by Amazon Conqueror towing twelve 10,000-meter cables, seven mile berth requested.

Longest in force

  1. HYDROARC 191/26 · Surveys2026-08-28
    Survey operations in Norwegian Sea by Amazon Conqueror towing twelve 10,000-meter cables, seven mile berth requested.

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 ops13427%
Surveys10922%
Missiles8517%
Exercises6212%
Nav aids316%
Quakes173%
Ordnance133%
Debris122%
Other122%
Containers92%
Incidents61%
Restricted41%
Derelicts10%
Mines10%
Icebergs10%

Ports on this sea · 6

Busiest first by annual vessel calls (IMF PortWatch); each port page shows the warnings within 60 nm, its World Port Index profile and monthly port calls.

Archive · 496 cancelled

  1. HYDROARC 247/26 · Missiles2026-09-20 → 2026-09-23
    Norway conducts rocket launches in the Norwegian Sea from 0700 to 1500 daily from September 21 to 25 in a bounded area.
  2. NAVAREA 19 118/26 · Missiles2026-09-19 → 2026-09-18
    0700 - 1500 UTC daily from 21 to 25 sept 26
  3. HYDROARC 232/26 · Missiles2026-09-13 → 2026-09-14
    Norway warns of hazardous rocket-launching operations in the Norwegian Sea from 1800 to 0300 UTC daily, 14 through 19 September.
  4. HYDROARC 222/26 · Nav aids2026-09-08 → 2026-09-09
    GPS jamming exercises occur in the Norwegian Sea near Norway from September 9 to 18, with extended hours on September 15 and 16.
  5. NAVAREA 19 111/26 · Nav aids2026-09-08 → 2026-09-04
    A GPS jamming exercise in the Norwegian Sea from 9 to 18 September 2026 may cause GNSS degradation; mariners should use alternative navigation.
  6. NAVAREA 19 107/26 · Surveys2026-08-29 → 2026-08-28
    Correct at 290630 UTC aug 26 norwegian sea: north of 65N, east of 5W
  7. NAVAREA 19 106/26 · Cable ops2026-08-28 → 2026-08-28
    Seismic survey in Norwegian Sea by vessel Amazon Conqueror towing 12 long cables; wide berth requested: 3 miles ahead/abeam, 7 miles astern.
  8. HYDROLANT 1691/26 · Surveys2026-08-28 → 2026-08-28
    Survey operations in Norwegian Sea by the vessel Amazon Conqueror towing 12 cables of 10000 meters, requesting a 7-mile berth, until further notice.
  9. NAVAREA 19 103/26 · Surveys2026-08-24 → 2026-08-21
    Drilling rigs listed in Norwegian Sea north of 65N east of 5W as of August 26, with safety zones; previous warning cancelled.
  10. NAVAREA 19 100/26 · Surveys2026-08-09 → 2026-08-24
    Rig list for Norwegian Sea north of 65N, east of 5W lists four rigs with 500 metre safety zones at 091830 UTC August 26.
  11. HYDROLANT 1297/26 · Surveys2026-07-03 → 2026-09-08
    Survey operations are in progress by vessel Ramform Atlas towing long cables in the North Sea off Norway; a three-mile berth is requested.
  12. USGS-US6000RMWV · Quakes2025-11-12 → 2025-11-15
    Earthquake magnitude 5.7 (mww) in 73.188N 006.477E, depth 10 km at 120603Z nov 25
  13. HYDROARC 70/24 · Missiles2024-05-03 → 2024-05-09
    Hazardous operations, rocket launching 1600Z to 0200Z daily 06 thru 08 may in area bound by 69-04.00N…
  14. HYDROARC 64/24 · Surveys2024-04-26 → 2026-08-14
    Survey operations in Norwegian Sea continue indefinitely, vessel towing 14 six-mile-long cables, seven-mile berth requested.
  15. HYDROLANT 866/24 · Other2024-04-23 → 2024-05-11
    Naval operations 290001 apr to 102359 may in area bound by 60-00.00N 023-00.00W, 60-00.00N 005-00.00E,…
  16. HYDROARC 60/24 · Other2024-04-23 → 2024-05-11
    Naval operations 290001 apr to 102359 may in area bound by 60-00.00N 023-00.00W, 60-00.00N 005-00.00E,…
  17. HYDROARC 24/24 · Missiles2024-02-27 → 2024-03-01
    Hazardous operations, rocket launching 291245Z to 291500Z feb, alternate 010745Z to 011500Z mar in area…
  18. USGS-US7000LIRE · Quakes2023-12-13 → 2023-12-16
    Earthquake magnitude 5.5 (mww) in 72.585N 003.586E, depth 10 km at 132020Z dec 23
  19. HYDROARC 289/23 · Missiles2023-11-11 → 2023-11-13
    Hazardous operations, rocket launching 0815Z to 1330Z daily 13 thru 26 nov in area bound by 69-17.50N…
  20. HYDROPAC 2932/23 · Missiles2023-09-13 → 2023-09-20
    Missile operations 1400Z to 0800Z daily 14 thru 24 sep in area bound by 65-28-00N 179-20-00W, 65-28-00N…

Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.