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 574/02 · Cable ops2002-03-12 → 2002-03-16
    Underwater operations in progress until further notice by cableship leon thevenin vicinity of trackline…
  2. HYDROLANT 332/02 · Nav aids2002-02-08 → 2002-02-09
    Monkstone light 51-25N 003-06W unlit
  3. HYDROLANT 225/02 · Nav aids2002-01-30 → 2002-02-01
    Dgps station at nash point light 51-24N 003-33W unreliable 301300Z to 301700Z, 310930Z to 311700Z jan and…
  4. HYDROLANT 117/02 · Nav aids2002-01-16 → 2002-01-17
    Caldey island light 51-37.9N 004-41.1W unreliable
  5. HYDROLANT 2979/01 · Surveys2001-11-21 → 2001-11-23
    Underwater operations in progress until further notice by M/V neftegaz 31 vicinity of trackline between…
  6. HYDROLANT 2883/01 · Nav aids2001-11-08 → 2001-11-09
    Dgps station at nash point light 51-24N 003-33W unreliable 090800Z to 091600Z nov
  7. HYDROLANT 2849/01 · Other2001-11-04 → 2001-11-06
    Flat holm light 51-23N 003-07W at reduced intensity
  8. HYDROLANT 2810/01 · Cable ops2001-10-31 → 2001-11-10
    Underwater operations in progress until further notice by cableship dock express 20 vicinity of trackline…
  9. HYDROLANT 2758/01 · Surveys2001-10-25 → 2001-10-26
    Underwater operations in progress until further notice by M/V havila reel vicinity of trackline between…
  10. HYDROLANT 2747/01 · Surveys2001-10-24 → 2001-10-25
    Underwater operations in progress until further notice by M/V havila reel vicinity of trackline between…
  11. HYDROLANT 2472/01 · Incidents2001-09-15 → 2001-09-17
    Eight meter vessel capsized and adrift vicinity 51-22.5N 003-06.0W at 151900Z sep
  12. HYDROLANT 2451/01 · Nav aids2001-09-12 → 2001-09-28
    Bull point light 51-12N 004-12W range reduced to 20 miles
  13. HYDROLANT 2435/01 · Nav aids2001-09-08 → 2001-09-12
    Bull point light 51-12N 004-12W range temporarily reduced to 12 miles
  14. HYDROLANT 2366/01 · Cable ops2001-08-29 → 2001-09-02
    Underwater operations in progress until further notice by cableship meda vicinity of trackline between…
  15. HYDROLANT 2361/01 · Cable ops2001-08-28 → 2001-08-29
    Underwater operations in progress until further notice by cableship meda vicinity of trackline between…
  16. HYDROLANT 2341/01 · Cable ops2001-08-26 → 2001-08-28
    Underwater operations in progress until further notice by cableship meda vicinity of trackline between…
  17. HYDROLANT 2329/01 · Cable ops2001-08-24 → 2001-08-26
    Underwater operations in progress until further notice by cableship meda vicinity of trackline between…
  18. HYDROLANT 2301/01 · Cable ops2001-08-21 → 2001-08-24
    Underwater operations in progress until further notice by cableship meda vicinity of trackline between…
  19. HYDROLANT 2284/01 · Cable ops2001-08-19 → 2001-08-21
    Underwater operations in progress until further notice by cableship meda vicinity of trackline between…
  20. HYDROLANT 2261/01 · Cable ops2001-08-16 → 2001-08-19
    Underwater operations in progress until further notice by cableship meda vicinity of trackline between…

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