Bay of Biscay
IHO sea area 22 · -8° to -0° E, 43° to 48° N
- in force
- 0
- last 12 months
- 0
- archive messages
- 488
- categories
- 13
What the archive shows
488 messages are recorded since 1999-01-12 for the Bay of Biscay. The selection uses the IHO sea area; a message may describe an exercise, equipment outage or continuing operation as well as a hazard report.
Exercises accounts for 164 of 488 recorded messages (34%), 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
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By month (all years)
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By category · available archive
| Exercises | 164 | 34% |
| Incidents | 106 | 22% |
| Surveys | 66 | 14% |
| Derelicts | 55 | 11% |
| Other | 22 | 5% |
| Nav aids | 21 | 4% |
| Containers | 17 | 3% |
| Debris | 14 | 3% |
| Cable ops | 9 | 2% |
| Wrecks | 6 | 1% |
| Ordnance | 3 | 1% |
| Missiles | 3 | 1% |
| Restricted | 2 | 0% |
Archive · 488 cancelled
- HYDROLANT 2307/23 · Exercises2023-10-11 → 2023-10-13Hazardous operations 130800Z to 131600Z oct in area within 40 miles of 46-00.00N 003-40.00W
- HYDROLANT 2306/23 · Exercises2023-10-11 → 2023-10-12Hazardous operations 120600Z to 121400Z oct in area bound by 44-45.00N 002-00.00W, 44-45.00N 001-30.00W,…
- HYDROLANT 2289/23 · Debris2023-10-09 → 2023-10-12Five meter white cubic object adrift in 47-01.58N 004-05.55W
- HYDROLANT 2270/23 · Exercises2023-10-06 → 2023-10-07Gunnery exercises 070700Z to 070900Z and 071300Z to 071500Z oct in area bound by 46-40.00N 003-48.45W,…
- HYDROLANT 2269/23 · Surveys2023-10-06 → 2023-10-14Survey operations 09 thru 13 oct by M/V minibex in area bound by 45-44.78N 001-55.27W, 45-53.86N 002-02.56W,…
- HYDROLANT 2261/23 · Exercises2023-10-06 → 2023-10-09Inert exercise torpedo adrift in vicinity 46-53.71N 004-33.75W
- HYDROLANT 2232/23 · Exercises2023-10-02 → 2023-10-03Gunnery exercises 030700Z to 030900Z and 031100Z to 031300Z oct in area bound by 47-08.90N 003-26.00W,…
- HYDROLANT 2199/23 · Exercises2023-09-29 → 2023-10-05Hazardous operations 0700Z to 1700Z daily 02 thru 05 oct in area within 40 miles of 47-00.00N 004-40.00W
- HYDROLANT 2183/23 · Exercises2023-09-27 → 2023-09-28Gunnery exercises 280730Z to 280900Z sep in area bound by 46-40.00N 003-48.45W, 46-40.00N 004-43.70W,…
- HYDROLANT 2172/23 · Exercises2023-09-26 → 2023-09-27Gunnery exercises 271700Z to 271900Z in area bound by 47-08.90N 003-26.00W, 47-14.00N 003-08.00W, 47-07.90N…
- HYDROLANT 2170/23 · Exercises2023-09-26 → 2023-09-27Gunnery exercises 270001Z to 270030Z sep in area bound by 46-40.00N 003-48.45W, 46-40.00N 004-43.70W,…
- HYDROLANT 2159/23 · Exercises2023-09-25 → 2023-09-27Gunnery exercises 261200Z to 261400Z and 262200Z to 262359Z sep in area bound by 46-40.00N 003-48.45W,…
- HYDROLANT 2139/23 · Exercises2023-09-22 → 2023-09-28Gunnery exercises 250900Z to 251000Z, 251200Z to 251300Z, 260815Z to 260915Z, 261230Z to 261330Z, 270915Z to…
- HYDROLANT 2133/23 · Derelicts2023-09-22 → 2023-09-25Derelict S/V hui-lon, blue hull, dismasted and adrift in vicinity 46-33.50N 004-43.40W at 220244Z sep
- HYDROLANT 2025/23 · Exercises2023-09-08 → 2023-09-15Hazardous operations 0930Z to 1030Z and 1230Z to 1400Z daily 12 and 14 sep, 150900Z to 151015Z and 151215Z…
- HYDROLANT 1910/23 · Exercises2023-08-26 → 2023-08-28Hazardous operations 280730Z to 281830Z aug in area within 40 miles of 45-39.76N 003-40.00W
- HYDROLANT 1867/23 · Exercises2023-08-21 → 2023-08-22Gunnery exercises 221100Z to 221300Z aug in area bound by 46-40.00N 003-48.45W, 46-40.00N 004-43.70W,…
- HYDROLANT 1814/23 · Surveys2023-08-16 → 2023-10-11Survey operations in progress until 112200Z oct by M/V emma bardan in area bound by 48-00.00N 005-50.00W,…
- HYDROLANT 1766/23 · Exercises2023-08-09 → 2023-08-10Gunnery exercises 100700Z to 100900Z and 101200Z to 101500Z aug in area bound by 46-40.00N 003-48.45W,…
- HYDROLANT 1751/23 · Debris2023-08-07 → 2023-08-10Odas buoy adrift in vicinity 44-45.68N 004-03.30W at 071100Z aug
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.