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 1646/23 · Exercises2023-07-21 → 2023-07-25Hazardous operations 0830Z to 1030Z daily 24 and 25 jul in area bound by 45-25.00N 001-24.00W, 43-45.00N…
- HYDROLANT 1639/23 · Exercises2023-07-20 → 2023-07-21Gunnery exercises 210630Z to 210830Z jul in area bound by 46-40.00N 003-48.45W, 46-40.00N 004-43.70W,…
- HYDROLANT 1632/23 · Ordnance2023-07-20 → 2026-08-14Unexploded ordnance is located in the Bay of Biscay, France, at 44 degrees 28 minutes north and 1 degree 56 minutes west.
- HYDROLANT 1580/23 · Exercises2023-07-13 → 2023-07-20Hazardous operations 171200Z to 171400Z, 180830Z to 181030Z, 181200Z to 181430Z, 190830Z to 191030Z, 191200Z…
- HYDROLANT 1537/23 · Exercises2023-07-07 → 2023-07-09Gunnery exercises 090730Z to 090930Z jul in area bound by 46-40.00N 003-48.45W, 46-40.00N 004-43.70W,…
- HYDROLANT 1511/23 · Exercises2023-07-05 → 2023-07-06Gunnery exercises 060815Z to 061015Z and 061515Z to 061715Z jul in area bound by 46-40.00N 003-48.45W,…
- HYDROLANT 1506/23 · Exercises2023-07-04 → 2023-07-05Gunnery exercises 050815Z to 051015Z and 051515Z to 051715Z jul in area bound by 46-40.00N 003-48.45W,…
- HYDROLANT 1498/23 · Exercises2023-07-03 → 2023-07-04Gunnery exercises 040815Z to 041015Z and 041515Z to 041715Z jul in area bound by 46-40.00N 003-48.45W,…
- HYDROLANT 1462/23 · Exercises2023-06-28 → 2023-06-29Gunnery exercises 290815Z to 291015Z and 291515Z to 291715Z jun in area bound by 46-40.00N 003-48.45W,…
- HYDROLANT 1451/23 · Exercises2023-06-27 → 2023-06-28Gunnery exercises 280815Z to 281015Z and 281515Z to 281715Z jun in area bound by 46-40.00N 003-48.45W,…
- HYDROLANT 1436/23 · Exercises2023-06-26 → 2023-06-27Gunnery exercises 271100Z to 271300Z jun in area bound by 47-08.90N 003-26.00W, 47-14.00N 003-08.00W,…
- HYDROLANT 1435/23 · Ordnance2023-06-26 → 2026-08-14Unexploded ordnance is located at 44 degrees 23 minutes north, 1 degree 46 minutes west, in the Bay of Biscay, France.
- HYDROLANT 1433/23 · Exercises2023-06-26 → 2023-06-27Gunnery exercises 270815Z to 271015Z and 271515Z to 271715Z jun in area bound by 46-40.00N 003-48.45W,…
- HYDROLANT 1363/23 · Exercises2023-06-19 → 2023-06-20Gunnery exercises 201300Z to 201600Z jun in area bound by 47-08.90N 003-26.00W, 47-14.00N 003-08.00W,…
- HYDROLANT 1362/23 · Exercises2023-06-19 → 2023-06-20Gunnery exercises 200600Z to 201000Z jun in area bound by 46-40.00N 003-48.45W, 46-40.00N 004-43.70W,…
- HYDROLANT 1361/23 · Ordnance2023-06-19 → 2026-08-14An unexploded ordnance is located at 44 degrees 25 minutes north, 1 degree 52 minutes west in the Bay of Biscay, France.
- HYDROLANT 1343/23 · Exercises2023-06-16 → 2023-06-17Gunnery exercises 170700Z to 171000Z and 171100Z to 171400Z jun in area bound by 46-40.00N 003-48.45W,…
- HYDROLANT 1342/23 · Exercises2023-06-16 → 2023-06-18Gunnery exercises 180700Z to 181000Z jun in area bound by 47-08.90N 003-26.00W, 47-14.00N 003-08.00W,…
- HYDROLANT 1314/23 · Exercises2023-06-13 → 2023-06-15Gunnery exercises 0700Z to 1030Z daily 14 and 15 jun in area bound by 45-41.00N 001-53.47W, 43-50.33N…
- HYDROLANT 1266/23 · Surveys2023-06-07 → 2023-07-30Survey operations in progress until 302159Z jun 23 by M/V emma bardan in area bound by 46-00N 003-00W,…
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.