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 788/22 · Surveys2022-03-18 → 2022-03-25Survey operations in progress until 040001Z apr by M/V miguel oliver in area bound by 46-00N 005-00W, 46-00N…
- HYDROLANT 784/22 · Exercises2022-03-18 → 2022-03-25Hazardous operations 1130Z to 1615Z daily 23 thru 25 mar in areas bound by: a. 45-09N 002-05W, 45-27N…
- HYDROLANT 743/22 · Exercises2022-03-14 → 2022-03-15Gunnery exercises 150730Z to 150930Z mar in areas bound by: 46-40.00N 003-48.45W, 46-40.00N 004-43.70W,…
- HYDROLANT 718/22 · Exercises2022-03-11 → 2022-03-14Gunnery exercises 141900Z to 142100Z mar in areas bound by: 46-40.00N 003-48.45W, 46-40.00N 004-43.70W,…
- HYDROLANT 716/22 · Exercises2022-03-11 → 2022-03-16Gunnery exercises 141330Z to 141530Z, 141830Z to 142030Z, 151830Z to 152030Z, 161830Z to 162030Z, 171330Z to…
- HYDROLANT 715/22 · Exercises2022-03-11 → 2022-03-15Gunnery exercises 1500Z to 2200Z daily 14 and 15 mar in area within five miles of 43-47.12N 001-51.15W
- HYDROLANT 691/22 · Exercises2022-03-08 → 2022-03-09Gunnery exercises 091500Z to 091700Z mar in area bound by 46-07.7N 005-00.0W, 46-20.0N 004-53.8W, 46-20.0N…
- HYDROLANT 680/22 · Exercises2022-03-07 → 2022-03-09Hazardous operations 090700Z to 091200Z mar in area within 40 miles of 46-50N 004-00W
- HYDROLANT 595/22 · Surveys2022-02-28 → 2022-03-02Survey operations 02 thru 05 mar by M/V archipel 3 in area bound by 45-52.89N 001-54.07W, 45-26.40N…
- HYDROLANT 572/22 · Exercises2022-02-26 → 2022-02-28Hazardous operations 281230Z to 281500Z feb in area in area within 20 miles of 47-20N 004-40W
- HYDROLANT 571/22 · Exercises2022-02-25 → 2022-02-27Gunnery exercises 270730Z to 270930Z feb in areas bound by: 46-40.00N 003-48.45W, 46-40.00N 004-43.70W,…
- HYDROLANT 402/22 · Surveys2022-02-09 → 2022-12-01Scientific moorings established by M/V atalante until 30 nov in: a. 46-54.51N 003-55.83W, marked by buoy,…
- HYDROLANT 362/22 · Exercises2022-02-04 → 2022-02-09Hazardous operations 0930Z to 1430Z daily 07 thru 09 feb in area bound by 45-25.0N 001-24.0W, 43-45.0N…
- HYDROLANT 60/22 · Nav aids2022-01-07 → 2022-01-07Pointe des poulains lighthouse 47-23.3N 003-15.1W unreliable
- HYDROLANT 3157/21 · Nav aids2021-12-25 → 2021-12-26Pointe des poulains lighthouse 47-23N 003-15W unreliable
- HYDROPAC 3053/21 · Cable ops2021-10-25 → 2021-11-09Cable operations 30 oct thru 09 nov, alternate 10 thru 14 nov by cableship kddi ocean link in area bound by…
- HYDROLANT 2251/21 · Surveys2021-09-02 → 2021-09-09Survey operations in progress until 060001Z oct by M/V angeles alvarinio and M/V emma bardan in area bound…
- HYDROLANT 2219/21 · Cable ops2021-08-30 → 2021-09-13Cable operations in progress until further notice by M/V responder in area within ten miles of 43-32.8N…
- HYDROLANT 2145/21 · Exercises2021-08-20 → 2021-08-30Gunnery exercises 231000Z thru 301000Z aug in area bound by 46-20.0N 004-53.8W, 46-20.0N 004-13.3W, 46-16.3N…
- HYDROLANT 2140/21 · Exercises2021-08-19 → 2021-08-30Gunnery exercises 231000Z thru 301000Z aug in area bound by 47-25.00N 004-09.91W, 47-25.00N 003-58.55W,…
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.