Bristol Channel

IHO sea area 20 · -5° to -2° E, 51° to 52° N

in force
0
last 12 months
1
archive messages
265
categories
9

What the archive shows

265 messages are recorded since 1997-07-03 for the Bristol 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 135 of 265 recorded messages (51%), 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

97
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 aids13551%
Cable ops5420%
Surveys5019%
Wrecks114%
Ordnance62%
Other31%
Containers31%
Restricted21%
Incidents10%

Archive · 265 cancelled

  1. HYDROLANT 227/05 · Cable ops2005-02-01 → 2005-02-05
    Underwater operations in progress until further notice by cableship ile de brehat vicinity 51-15N 003-27W
  2. HYDROLANT 182/05 · Cable ops2005-01-22 → 2005-01-25
    Underwater operations in progress until further notice by cableship ile de brehat vicinity 51-20N 003-51W
  3. HYDROLANT 104/05 · Cable ops2005-01-14 → 2005-01-18
    Cable operations in progress until further notice by cableship ile de brehat vicinity 51-20N 003-51W
  4. HYDROLANT 29/05 · Nav aids2005-01-05 → 2005-01-05
    Dgps stations at nash point light 51-24N 003-33W unreliable until 051600Z jan
  5. HYDROLANT 1745/04 · Nav aids2004-10-29 → 2004-10-29
    Merkur buoy 51-22N 003-16W missing
  6. HYDROLANT 1484/04 · Wrecks2004-09-10 → 2004-09-16
    Dangerous wreck in 51-19.6N 003-12.0W
  7. HYDROLANT 975/04 · Nav aids2004-06-06 → 2004-06-07
    South scarweather buoy 51-28N 003-52W unlit
  8. HYDROLANT 911/04 · Nav aids2004-05-26 → 2004-05-27
    Dgps station at nash point light 51-24N 003-33W unreliable 270900Z to 271400Z may
  9. HYDROLANT 905/04 · Nav aids2004-05-25 → 2004-05-26
    Dgps station at nash point light 51-24N 003-33W unreliable 0900Z to 1400Z daily 25 and 27 may
  10. HYDROLANT 290/04 · Nav aids2004-02-19 → 2004-02-19
    Horseshoe buoy 51-15N 004-13W unlit
  11. HYDROLANT 1245/03 · Restricted2003-06-27 → 2003-07-25
    Navigation prohibited until further notice within 0.5 miles of 51-14.01N 004-15.93W
  12. HYDROLANT 1155/03 · Restricted2003-06-12 → 2003-06-27
    Navigation prohibited until further notice within one mile of horseshoe north cardinal buoy 51-15.1N 004-13.0W
  13. HYDROLANT 1060/03 · Nav aids2003-05-30 → 2003-06-02
    Breaksea lightfloat 51-20N 003-19W unreliable
  14. HYDROLANT 1052/03 · Nav aids2003-05-29 → 2003-05-30
    Breaksea lightfloat 51-20N 003-19W unreliable
  15. HYDROLANT 981/03 · Nav aids2003-05-20 → 2003-05-22
    Dgps station at nash point light 51-24N 003-33W off air 0900Z to 1200Z daily 20 and 21 may and 220800Z to…
  16. HYDROLANT 2455/02 · Cable ops2002-11-06 → 2002-11-15
    Underwater operations in progress until further notice by cableship leon thevenin with submersible vicinity…
  17. HYDROLANT 1149/02 · Nav aids2002-05-22 → 2002-05-23
    Dgps station at nash point light 51-24N 003-33W unreliable 220900Z to 221000Z and 230900Z to 231200Z may
  18. HYDROLANT 1140/02 · Nav aids2002-05-21 → 2002-05-21
    Dgps station at nash point light 51-24N 003-33W unreliable 210900Z to 210915Z and 211500Z to 211515Z may
  19. HYDROLANT 1064/02 · Nav aids2002-05-08 → 2002-05-11
    Fog signal at mumbles light 51-34.0N 003-58.3W inoperative
  20. HYDROLANT 1062/02 · Nav aids2002-05-08 → 2002-06-19
    RACON at cabenda buoy 51-33.4N 003-52.2W inoperative

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