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 2869/23 · Exercises2023-12-12 → 2023-12-13Gunnery exercises 131700Z to 131800Z dec in area bound by 46-40.00N 003-48.45W, 46-40.00N 004-43.70W,…
- HYDROLANT 2804/23 · Incidents2023-12-04 → 2026-08-14Distress signal received on 121.5 and 406 mhz in 44-52.60N 006-18.06W
- HYDROLANT 2785/23 · Exercises2023-12-01 → 2023-12-07Gunnery exercises 1300Z to 1900Z daily 04 thru 07 dec in area bound by 45-03.00N 001-32.00W, 45-03.00N…
- HYDROLANT 2769/23 · Exercises2023-11-30 → 2023-12-08Gunnery exercises 051300Z to 051500Z, 060930Z to 061130Z, 061300Z to 061500Z, and 081000Z to 081200Z dec in…
- HYDROLANT 2737/23 · Exercises2023-11-27 → 2023-11-28Gunnery exercises 281400Z to 281700Z nov in area bound by 46-07.70N 005-00.00W, 46-20.00N 004-53.80W,…
- HYDROLANT 2717/23 · Exercises2023-11-24 → 2023-11-28Gunnery exercises 1400Z to 2000Z daily 27 and 28 nov in area bound by 45-03.00N 001-32.00W, 45-03.00N…
- HYDROLANT 2694/23 · Exercises2023-11-22 → 2023-11-23Gunnery exercises 230700Z to 230800Z nov in area bound by 46-40.00N 003-48.45W, 46-40.00N 004-43.70W,…
- HYDROLANT 2693/23 · Exercises2023-11-22 → 2023-11-23Gunnery exercises 231200Z to 231600Z nov in area bound by 47-08.90N 003-26.00W, 47-14.00N 003-08.00W,…
- HYDROLANT 2686/23 · Nav aids2023-11-22 → 2026-08-14Pen-Men light in Bay of Biscay, France has its range reduced to 15 miles.
- HYDROLANT 2643/23 · Exercises2023-11-17 → 2023-11-18Gunnery exercises 180700Z to 181100Z nov in area bound by 46-07.70N 005-00.00W, 46-20.00N 004-53.80W,…
- HYDROLANT 2642/23 · Exercises2023-11-17 → 2023-11-20Gunnery exercises 180700Z to 180930Z, 181600Z to 191730Z, 191430Z to 191630Z, 200700Z to 200930Z, 201000Z to…
- HYDROLANT 2632/23 · Exercises2023-11-17 → 2023-11-17Gunnery exercises 170700Z to 170900Z nov in area bound by 47-08.90N 003-26.00W, 47-14.00N 003-08.00W,…
- HYDROLANT 2622/23 · Exercises2023-11-15 → 2023-11-16Gunnery exercises 160730Z to 160930Z nov in area bound by 47-08.90N 003-26.00W, 47-14.00N 003-08.00W,…
- HYDROLANT 2621/23 · Exercises2023-11-15 → 2023-11-16Gunnery exercises 160800Z to 161100Z nov in area bound by 46-07.70N 005-00.00W, 46-20.00N 004-53.80W,…
- HYDROLANT 2604/23 · Exercises2023-11-14 → 2023-11-16Hazardous operations 161100Z to 161600Z nov in area within 40 miles of 46-59.75N 004-00.00W
- HYDROLANT 2499/23 · Incidents2023-11-02 → 2023-11-17Distress signal received on 121.5 and 406 mhz in 45-11.00N 002-30.20W
- HYDROLANT 2443/23 · Other2023-10-26 → 2026-08-14A submerged orange object is reported in the Bay of Biscay near 47-02N 003-17W.
- HYDROLANT 2429/23 · Exercises2023-10-24 → 2023-10-25Gunnery exercises 250830Z to 251700Z oct in area bound by 47-08.90N 003-26.00W, 47-14.00N 003-08.00W,…
- HYDROLANT 2342/23 · Exercises2023-10-16 → 2023-10-16Gunnery exercises 161400Z to 162000Z oct in area bound by 44-31.00N 001-34.00W, 44-31.00N 001-44.00W,…
- HYDROLANT 2325/23 · Exercises2023-10-13 → 2023-10-18Gunnery exercises 1600Z to 2000Z daily 16 thru 18 oct in area bound by 44-35.00N 001-32.00W, 44-35.00N…
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.