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%

Ports on this sea · 5

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 · 265 cancelled

  1. HYDROLANT 1885/26 · Nav aids2026-09-24 → 2026-09-24
    Bull Point Light in the Bristol Channel, England, at 51-12.00N 004-12.10W is unreliable.
  2. HYDROLANT 891/24 · Nav aids2024-04-26 → 2024-05-02
    Fog signal at mumbles head light 51-34.00N 003-58.30W inoperative
  3. HYDROLANT 2591/23 · Nav aids2023-11-12 → 2023-11-16
    Flat holm light 51-22.50N 003-07.10W unreliable
  4. HYDROLANT 2143/23 · Nav aids2023-09-23 → 2023-09-24
    Nash point light 51-24.10N 003-33.10W unreliable
  5. HYDROLANT 2122/23 · Nav aids2023-09-21 → 2023-09-30
    Caldy island light 51-37.9N 004-41.1W unreliable
  6. HYDROLANT 1512/23 · Nav aids2023-07-05 → 2023-07-06
    Copperas rock buoy 51-13.80N 004-00.60W unlit
  7. HYDROLANT 1007/23 · Nav aids2023-05-08 → 2023-05-15
    Fog signal at mumbles light 51-34.00N 003-58.30W inoperative
  8. HYDROLANT 406/23 · Nav aids2023-02-21 → 2023-03-02
    Flat holm light 51-22.50N 003-07.10W unreliable
  9. HYDROLANT 385/23 · Nav aids2023-02-18 → 2023-02-21
    Nash point light 51-24.00N 003-33.00W light unreliable
  10. HYDROLANT 297/23 · Nav aids2023-02-06 → 2023-02-11
    Nash point light 51-24.10N 003-33.10W unreliable
  11. HYDROLANT 2434/22 · Nav aids2022-09-26 → 2022-09-30
    GPS jamming exercises 0900Z to 1700Z daily 26 thru 30 sep in area within 12 miles of 51-38.77N 004-47.50W
  12. HYDROLANT 1583/22 · Nav aids2022-06-20 → 2022-06-28
    Nash point lighthouse 51-24.10N 003-33.10W unreliable 210730Z to 281700Z jun
  13. HYDROLANT 1147/22 · Nav aids2022-04-27 → 2022-04-28
    GPS jamming exercises 0800Z to 1600Z daily 27 and 28 apr in area within 12 miles of 51-38.8N 004-47.5W
  14. HYDROLANT 834/22 · Nav aids2022-03-23 → 2022-03-24
    Caldy island light 51-37.9N 004-41.1W unreliable
  15. HYDROLANT 454/22 · Nav aids2022-02-16 → 2022-02-17
    GPS jamming exercises 0900Z to 1700Z daily 16 and 17 feb in area within 12 miles of 51-38.8N 004-47.5W
  16. HYDROLANT 1947/21 · Wrecks2021-07-26 → 2021-08-04
    Dangerous wreck in vicinity 51-14.4N 003-49.6W
  17. HYDROLANT 1778/21 · Wrecks2021-07-06 → 2021-07-21
    Dangerous wreck in vicinity 51-14.4N 003-49.6W
  18. HYDROLANT 1600/21 · Nav aids2021-06-14 → 2021-06-16
    Lynmouth foreland light 51-14.7N 003-47.2W unreliable 0400Z to 2000Z daily 15 and 16 jun
  19. HYDROLANT 3988/20 · Nav aids2020-12-27 → 2020-12-28
    Bull point light 51-11.9N 004-12.1W unreliable
  20. HYDROLANT 3312/20 · Containers2020-10-29 → 2020-11-01
    Container adrift in 51-30N 004-00W at 291230Z oct

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