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%

Archive · 1,132 cancelled

  1. HYDROLANT 3007/13 · Nav aids2013-11-26 → 2014-01-07
    Cancel HYDROLANT 2158/13
  2. HYDROLANT 2961/13 · Nav aids2013-11-21 → 2013-11-23
    B. off air 230900Z to 231600Z nov
  3. HYDROLANT 2960/13 · Nav aids2013-11-21 → 2013-11-21
    Wales-northwest Coast
  4. HYDROLANT 2942/13 · Nav aids2013-11-20 → 2013-11-20
    Cancel HYDROLANT 2936/13
  5. HYDROLANT 2936/13 · Nav aids2013-11-20 → 2013-11-20
    Cancel this msg 211700Z nov 13
  6. HYDROPAC 3573/13 · Containers2013-11-17 → 2013-11-20
    21 containers adrift vicinity of trackline between 51-47N 166-55E and 53-01N 179-53W
  7. NAVAREA XII 294/13 · Containers2013-11-17 → 2013-11-20
    21 containers adrift vicinity of trackline between 51-47N 166-55E and 53-01N 179-53W
  8. HYDROLANT 2523/13 · Nav aids2013-10-12 → 2013-10-17
    Wales-northwest Coast
  9. HYDROLANT 2261/13 · Nav aids2013-09-14 → 2013-09-15
    Scotland-southwest Coast
  10. HYDROLANT 2163/13 · Nav aids2013-09-04 → 2013-09-04
    Cancel this msg 041600Z sep 13
  11. HYDROLANT 2158/13 · Nav aids2013-09-03 → 2013-11-26
    Cancel HYDROLANT 1440/13
  12. HYDROLANT 2132/13 · Nav aids2013-09-01 → 2013-09-02
    Wales-northwest Coast
  13. HYDROLANT 1827/13 · Surveys2013-07-27 → 2013-08-10
    Underwater operations in progress until further notice by M/V irish sea pioneer with submersible in…
  14. HYDROLANT 1777/13 · Cable ops2013-07-22 → 2013-07-28
    Underwater operations in progress until further notice by cableship raymond croze vicinity of trackline…
  15. HYDROLANT 1638/13 · Other2013-07-07 → 2013-07-08
    B. west cardinal 54-05.5N 003-28.8W
  16. HYDROLANT 1451/13 · Nav aids2013-06-13 → 2013-06-13
    Saint George's Channel
  17. HYDROLANT 1440/13 · Nav aids2013-06-12 → 2013-09-03
    Cancel HYDROLANT 1423/13(24)
  18. HYDROLANT 1434/13 · Nav aids2013-06-11 → 2013-06-11
    Cancel this msg 111800Z jun 13
  19. HYDROLANT 1313/13 · Nav aids2013-05-28 → 2013-06-04
    Cancel HYDROLANT 1304/13
  20. HYDROLANT 1304/13 · Nav aids2013-05-27 → 2013-05-28
    Wales-northwest Coast

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

Irish Sea and St. George's Channel — navigational warnings — archive page 19 · seahazards