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 1264/23 · Exercises2023-06-07 → 2023-06-08Gunnery exercises 080600Z to 081000Z and 081200Z to 081400Z jun in area bound by 46-40.00N 003-48.45W,…
- HYDROLANT 1255/23 · Exercises2023-06-06 → 2023-06-07Gunnery exercises 070600Z to 071000Z and 071200Z to 071600Z jun in area bound by 46-40.00N 003-48.45W,…
- HYDROLANT 1174/23 · Exercises2023-05-26 → 2023-06-02Hazardous operations 0900Z to 1030Z and 1200Z to 1330Z daily 31 may thru 02 jun in area bound by 45-25.00N…
- HYDROLANT 1161/23 · Surveys2023-05-25 → 2023-09-02Survey operations 27 may thru 01 sep by M/V situla in area bound by 46-08.40N 001-15.23W, 46-06.80N…
- HYDROLANT 1157/23 · Exercises2023-05-25 → 2023-05-30Hazardous operations 300800Z to 301830Z may in area within 40 miles of 45-00.00N 005-00.00W
- HYDROLANT 1144/23 · Exercises2023-05-24 → 2023-06-01Gunnery exercises 252000Z to 252300Z and 311830Z to 312300Z may in area bound by 44-56.00N 001-32.00W,…
- HYDROLANT 1121/23 · Exercises2023-05-22 → 2023-05-23Gunnery exercises 230700Z to 230900Z may in area bound by 47-08.90N 003-26.00W, 47-14.00N 003-08.00W,…
- HYDROLANT 1119/23 · Exercises2023-05-22 → 2023-05-25Gunnery exercises 231600Z to 232300Z and 251600Z to 252000Z may in area bound by 44-23.00N 001-34.00W,…
- HYDROLANT 1077/23 · Exercises2023-05-15 → 2023-05-16Gunnery exercises 161130Z to 161330Z in area bound by 47-08.90N 003-26.00W, 47-14.00N 003-08.00W, 47-07.90N…
- HYDROLANT 947/23 · Exercises2023-05-02 → 2023-05-03Gunnery exercises 031315Z to 031515Z in: a. in area bound by: 46-40.00N 003-48.45W, 46-40.00N 004-43.70W,…
- HYDROLANT 943/23 · Exercises2023-05-02 → 2023-05-03Gunnery exercises 030830Z to 031000Z may in area bound by 47-08.90N 003-26.00W, 47-14.00N 003-08.00W,…
- HYDROLANT 930/23 · Debris2023-04-30 → 2023-05-03Buoy, red, adrift in vicinity 44-48.06N 004-13.09W
- HYDROLANT 912/23 · Exercises2023-04-28 → 2023-04-30Gunnery exercises 301700Z to 301900Z apr in area bound by 47-08.90N 003-26.00W, 47-14.00N 003-08.00W,…
- HYDROLANT 868/23 · Exercises2023-04-22 → 2023-04-28Hazardous operations 0900Z to 1030Z daily 24, 26 and 28, 1200Z to 1330Z daily 24 thru 27, and 281215Z to…
- HYDROLANT 814/23 · Exercises2023-04-15 → 2023-04-21Hazardous operations 181200Z to 181400Z, 190800Z to 191000Z, 191200Z to 191400Z, 201130Z to 201330Z, 210800Z…
- HYDROLANT 807/23 · Exercises2023-04-14 → 2023-04-15Gunnery exercises 151030Z to 151200Z, 151300Z to 151400Z apr in area bound by 46-16.30N 004-00.00W,…
- HYDROLANT 772/23 · Nav aids2023-04-11 → 2023-04-11Contis-les-bains light 44-05.61N 001-19.01W unlit
- HYDROLANT 728/23 · Exercises2023-04-04 → 2023-04-05Gunnery exercises 050700Z to 050900Z apr in area bound by 47-08.90N 003-26.00W, 47-14.00N 003-08.00W,…
- HYDROLANT 722/23 · Containers2023-04-04 → 2023-04-07Four 40 foot containers adrift in vicinity 43-47.59N 006-11.40W at 020600 apr
- HYDROLANT 701/23 · Other2023-04-01 → 2023-04-03Numerous 13 meter long containers, blue and orange color, adrift in vicinity 43-45.00N 006-30.00W at 311145Z…
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.