Irish Sea and St. George's Channel

IHO sea area 19 · -7° to -3° E, 52° to 55° N

in force
0
last 12 months
2
archive messages
1,132
categories
12

What the archive shows

1,132 messages are recorded since 1999-01-03 for the Irish Sea and St. George's Channel. The selection uses the IHO sea area; a message may describe an exercise, equipment outage or continuing operation as well as a hazard report.

Nav aids accounts for 656 of 1,132 recorded messages (58%), 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 · 0

Nothing in force in this sea right now.

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
26

By month (all years)

J
F
M
A
M
J
J
A
S
O
N
D

By category · available archive

Nav aids65658%
Cable ops18416%
Surveys16214%
Other565%
Wrecks474%
Containers71%
Derelicts71%
Debris50%
Exercises40%
Restricted20%
Structures10%
Incidents10%

Ports on this sea · 10

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 · 1,132 cancelled

  1. HYDROLANT 1821/26 · Surveys2026-09-14 → 2026-09-16
    Underwater operations by motor vessel ZWERVER I continue until further notice in Irish Sea off Wales within 53-34.50N 003-35.40W, 53-34.60N 003-28.20W, 53-32.60N 003-35.70W; wide berth requested.
  2. HYDROLANT 1708/26 · Exercises2026-08-29 → 2026-08-31
    Hazardous operations 301100Z aug thru 030001Z sep in area bound by 53-08.40N 006-03.50W, 53-08.40N…
  3. HYDROLANT 2093/24 · Nav aids2024-10-01 → 2026-08-17
    Portpatrick NAVTEX station off air from 020800 to 031600 Oct, broadcasts from Cullercoats, cancel 031700 Oct 24.
  4. HYDROLANT 2091/24 · Exercises2024-09-30 → 2026-08-17
    Hazardous operations take place daily from 0900 to 1500 on 01-04 October within 11 miles of 52-26.39N 004-49.50W in Cardigan Bay, Saint George's Channel, England.
  5. HYDROLANT 2065/24 · Surveys2024-09-26 → 2026-08-17
    Survey operations are in progress until 31 Oct by vessel Ramform Vanguard towing cables in the Irish Sea off Ireland. Wide berth requested.
  6. HYDROLANT 2061/24 · Nav aids2024-09-25 → 2026-08-17
    Balbriggan Island light in the Irish Sea, Ireland, at 53-36.80N 006-10.80W is unreliable, and hydrolant warning 1802/24 is cancelled.
  7. HYDROLANT 2020/24 · Nav aids2024-09-18 → 2026-08-17
    GPS jamming exercises occur daily from 23 Sep to 4 Oct, 0730 to 1630Z, within 22 miles of 54-50N 004-56W in Irish Sea, North Channel, England.
  8. HYDROLANT 936/24 · Wrecks2024-05-02 → 2026-08-14
    A dangerous wreck is in the Irish Sea off the Isle of Man at 54-12.68N 004-16.44W; warning 587/24 is cancelled.
  9. HYDROLANT 878/24 · Nav aids2024-04-25 → 2026-08-14
    The Isle of Man Light at 54-03.70N 004-48.00W is unlit.
  10. HYDROLANT 852/24 · Other2024-04-22 → 2026-08-14
    Fishing gear, marked by buoys and abandoned, is in the Irish Sea off Wales at 53-30.10N 004-12.70W.
  11. HYDROLANT 827/24 · Surveys2024-04-18 → 2026-08-14
    Survey operations are in progress in the Irish Sea off England by M/V SW Amundsen towing seven 2200-meter cables. A three-mile berth is requested.
  12. HYDROLANT 590/24 · Wrecks2024-03-21 → 2024-03-22
    Dangerous wreck in 54-12.68N 004-16.44W
  13. HYDROLANT 587/24 · Wrecks2024-03-21 → 2024-05-02
    Dangerous wreck in 54-12.68N 004-16.44W
  14. HYDROLANT 504/24 · Debris2024-03-12 → 2024-03-15
    Fishing nets adrift in 53-28.03N 005-53.40W
  15. HYDROLANT 496/24 · Nav aids2024-03-10 → 2024-03-11
    Mrcc belfast r/t and dsc services at snaefell site 54-15.80N 004-27.70W off air
  16. HYDROLANT 268/24 · Wrecks2024-02-08 → 2024-03-21
    Dangerous wreck in 54-12.70N 004-16.40W
  17. HYDROLANT 64/24 · Nav aids2024-01-09 → 2024-01-09
    Barrow wind farm turbine A07 54-00.50N 003-18.20W unlit
  18. HYDROLANT 2853/23 · Nav aids2023-12-10 → 2026-08-14
    An unlit ODAS buoy M2 is at 53-28N 005-25W in the Irish Sea near Ireland.
  19. HYDROLANT 2834/23 · Cable ops2023-12-07 → 2023-12-13
    Cable operations in progress until further notice by cableship cable vigilance with submersible in area…
  20. HYDROLANT 2734/23 · Nav aids2023-11-27 → 2023-11-27
    East kish buoy 53-14.30N 005-53.60W unlit

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