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% |
Ports on this sea · 15
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.
- Bilbao · Spain16 archived
- Montoir · France59 archived
- Santander · Spain12 archived
- Gijon · Spain20 archived
- Pasajes · Spain28 archived
- La Pallice · France34 archived
- Aviles · Spain20 archived
- Bordeaux · France30 archived
- Bayonne · France41 archived
- Lorient · France151 archived
- Nantes · France14 archived
- Les Sables D' Olonne · France42 archived
- San Ciprian · Spain53 archived
- St Nazaire · France60 archived
- Le Verdon · France35 archived
Archive · 488 cancelled
- HYDROLANT 1613/24 · Surveys2024-07-21 → 2026-08-17A scientific mooring is established at 44-10.03N 002-10.21W in the Bay of Biscay, France. A 500 meter berth is requested.
- HYDROLANT 1526/24 · Surveys2024-07-10 → 2026-08-17Scientific moorings marked by buoys are established at seven positions in the Bay of Biscay, France.
- HYDROLANT 1143/24 · Wrecks2024-05-28 → 2026-08-17A submerged obstruction marked by yellow buoys is located at 45-39.63N 001-40.58W in the Bay of Biscay, France.
- HYDROLANT 978/24 · Nav aids2024-05-09 → 2024-05-26Temporary buoy with acoustic recorder established in 47-04.24N 003-19.81W until 25 may
- HYDROLANT 894/24 · Debris2024-04-26 → 2024-04-29250 meter long cable with yellow buoy adrift in vicinity 43-35.04N 001-51.48W
- HYDROLANT 893/24 · Exercises2024-04-26 → 2024-04-30Hazardous operations 301100 to 301400 and 301900Z to 302200Z apr in area bound by 44-35.00N 001-32.00W,…
- HYDROLANT 824/24 · Surveys2024-04-17 → 2024-04-29Survey operations 19 apr thru 28 may by M/V thalassa along trackline joining 47-50.31N 004-08.86W, 43-22.95N…
- HYDROLANT 823/24 · Exercises2024-04-17 → 2024-04-18Gunnery exercises 180800Z to 181000Z apr in area bound by 47-08.90N 003-26.00W, 47-14.00N 003-08.00W,…
- HYDROLANT 810/24 · Missiles2024-04-16 → 2024-04-18Hazardous operations, space debris 181000Z to 181530Z apr along trackline joining 47-36.00N 004-13.00W,…
- HYDROLANT 800/24 · Missiles2024-04-15 → 2024-04-16Hazardous operations, space debris 171000Z to 171530Z apr along trackline joining 47-36.00N 004-13.00W,…
- HYDROLANT 759/24 · Exercises2024-04-11 → 2024-04-11Gunnery exercises 110600Z to 110800Z and 111200Z to 111400Z apr in area bound by 47-08.90N 003-26.00W,…
- HYDROLANT 758/24 · Nav aids2024-04-11 → 2026-08-14In the Bay of Biscay, France, the Ile d'Yeu main light at 46-43.04N 002-22.92W has reduced range.
- HYDROLANT 739/24 · Incidents2024-04-08 → 2024-05-03Distress signal received on 406 mhz from S/V lucente solo sailor in 44-53.20N 005-57.30W at 081924Z apr
- HYDROLANT 717/24 · Exercises2024-04-05 → 2024-04-07Gunnery exercises 071300Z to 071530Z apr in area bound by 47-08.90N 003-26.00W, 47-14.00N 003-08.00W,…
- HYDROLANT 716/24 · Missiles2024-04-05 → 2024-04-09Hazardous operations, space debris 101000Z to 101430Z, alternate 111000Z to 111430Z apr along trackline…
- HYDROLANT 684/24 · Exercises2024-04-02 → 2024-04-05Hazardous operations 041500Z to 041800Z and 042030Z to 042300Z apr in area bound by 44-31.00N 001-34.00W,…
- HYDROLANT 674/24 · Nav aids2024-04-01 → 2024-04-03Ile de penfret light 47-43.30N 003-57.20W range reduced to 11 miles until 02 apr
- HYDROLANT 666/24 · Nav aids2024-04-01 → 2024-04-03Ile de penfret light 47-43.30N 003-57.20W range reduced until 02 apr
- HYDROLANT 665/24 · Derelicts2024-03-31 → 2024-04-03Derelict six meter S/V, white hull, adrift in vicinity 46-29.47N 002-34.03W at 031900Z mar
- HYDROLANT 659/24 · Nav aids2024-03-31 → 2024-04-01Ile de penfret light 47-43.30N 003-57.20W range reduced to 11 miles
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.