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% |
| Missiles | 3 | 1% |
| Ordnance | 3 | 1% |
| Restricted | 2 | 0% |
Archive · 488 cancelled
- HYDROLANT 680/23 · Exercises2023-03-28 → 2023-03-29Gunnery exercises 290700Z to 290900Z mar in area bound by 47-08.90N 003-26.00W, 47-14.00N 003-08.00W,…
- HYDROLANT 628/23 · Surveys2023-03-21 → 2023-03-28Scientific mooring established in 47-04.22N 003-19.86W until 27 mar
- HYDROLANT 612/23 · Exercises2023-03-20 → 2023-03-21Gunnery exercises 210800Z to 210900Z and 211400Z to 211600Z mar in area bound by 47-08.90N 003-26.00W,…
- HYDROLANT 595/23 · Surveys2023-03-18 → 2023-03-29Oceanographic equipment temporarily established 20 thru 28 mar by M/V reborn in 47-04.22N 003-19.86W
- HYDROLANT 592/23 · Exercises2023-03-18 → 2023-03-20Gunnery exercises 201400Z to 201600Z mar in area bound by 47-08.90N 003-26.00W, 47-14.00N 003-08.00W,…
- HYDROLANT 591/23 · Exercises2023-03-17 → 2023-03-19Gunnery exercises 190700Z to 191100Z mar in area bound by 46-40.00N 003-48.45W, 46-40.00N 004-43.70W,…
- HYDROLANT 590/23 · Exercises2023-03-17 → 2023-03-18Gunnery exercises 180700Z to 181100Z mar in area bound by 46-40.00N 003-48.45W, 46-40.00N 004-43.70W,…
- HYDROLANT 582/23 · Exercises2023-03-17 → 2023-03-17Gunnery exercises 171200Z to 171600Z mar in areas bound by 46-40.00N 003-48.45W, 46-40.00N 004-43.70W,…
- HYDROLANT 528/23 · Exercises2023-03-09 → 2023-03-10Hazardous operations 100800Z to 101900Z mar in area within 40 miles of 46-00.00N 004-00.00W
- HYDROLANT 471/23 · Exercises2023-03-01 → 2023-03-02Gunnery exercises 020800Z to 081000Z and 021400Z to 021600Z mar in area bound by 46-16.30N 004-00.00W,…
- HYDROLANT 417/23 · Exercises2023-02-23 → 2023-02-23Gunnery exercises 231630Z to 232100Z feb in area bound by 44-56.00N 001-32.00W, 45-03.00N 001-32.00W,…
- HYDROLANT 357/23 · Exercises2023-02-14 → 2023-02-15Gunnery exercises 151230Z to 151430Z in area bound by 47-08.90N 003-26.00W, 47-14.00N 003-08.00W, 47-07.90N…
- HYDROLANT 352/23 · Exercises2023-02-13 → 2023-02-17Hazardous operations 1000Z to 1115Z and 1300Z to 1415Z daily 14 thru 17 feb in area bound by 45-25.00N…
- HYDROLANT 351/23 · Derelicts2023-02-13 → 2023-02-16Derelict three meter raft adrift in vicinity 45-37.48N 002-16.34W
- HYDROLANT 299/23 · Exercises2023-02-06 → 2023-02-16Gunnery exercises 1500Z to 1700Z and 1900Z to 2100Z daily 07, 09, 14 and 16 feb in areas bound by: a.…
- HYDROLANT 228/23 · Derelicts2023-01-27 → 2023-01-30Derelict vessel and fishing net adrift in 46-11.81N 001-58.20W
- HYDROLANT 226/23 · Exercises2023-01-27 → 2023-01-31Gunnery exercises 311600Z to 312000Z jan in areas bound by: a. 44-23.00N 001-44.00W, 44-23.00N 001-34.00W,…
- HYDROLANT 202/23 · Exercises2023-01-24 → 2023-01-25Gunnery exercises 251630Z to 251830Z jan in area bound by 46-40.00N 003-48.45W, 46-40.00N 004-43.70W,…
- HYDROLANT 188/23 · Exercises2023-01-23 → 2023-01-24Gunnery exercises 241900Z to 242100Z jan in area bound by 46-40.00N 003-48.45W, 46-40.00N 004-43.70W,…
- HYDROLANT 148/23 · Exercises2023-01-18 → 2023-01-19Gunnery exercises 190815Z to 191000Z and 191315Z to 191500Z jan in area bound by 46-40.00N 003-48.45W,…
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.