Hazardous operation 290800Z to 291500Z mar in area within 40 miles of 46-20N 003-40W
Bay of Biscay · HYDROLANT 851/22
What this record establishes
Archived notice · 2022-03-29 16:00Z
This notice comes from the historical archive. Its archived status does not establish when or how the reported situation ended.
- Source and dates
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · AVURNAV BREST 174/22 251200Z MAR 22.. Issued 2022-03-25 08:27Z. First collected 2026-08-17 13:38Z; last seen in collection 2026-08-17 15:46Z. Collection dates record ingestion, not a new incident or a fresh field observation.
- Location covered
- Bay of Biscay. The parsed report position is 46.333, -3.667 with a 40.0 nm radius. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.
Current notices and reporting history in the Bay of Biscay →
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2022-03-29 08:00Z | 2022-03-29 15:00Z | — | 7 h |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2022-03-25 08:27Z
- status
- Archived notice
- self-cancels
- 2022-03-29 16:00Z
- authority
- AVURNAV BREST 174/22 251200Z MAR 22.
- issued by
- AVURNAV BREST
- sea
- Bay of Biscay
- position
- 46.333, -3.667 · r 40.0 nm
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
BAY OF BISCAY. FRANCE. DNC 08. 1. HAZARDOUS OPERATION 290800Z TO 291500Z MAR IN AREA WITHIN 40 MILES OF 46-20N 003-40W. 2. CANCEL THIS MSG 291600Z MAR 22.
Reading this warning
- DNC (Digital Nautical Chart)
- A reference to one of the regions of NGA's Digital Nautical Chart, used to tell the reader which charts a warning affects.
- Date-time group (DTG)
- A compact UTC timestamp — day, hour and minute followed by Z — such as 201500Z for the 20th at 15:00 UTC.
- Within a radius of
- A circular area — every position within a stated distance of a point.
- Position (degrees and minutes)
- How warnings write positions: degrees, a hyphen, then minutes, with N/S and E/W — 49-40.8N 003-43.8W.
- CANCEL THIS MSG
- The warning's own expiry: a line telling the reader when the message cancels itself.
Collected reports in this area · other warnings
64 within 180 nm since 1999 · 0 in the last 12 months · 0 listed in force now
Counts include repeat notices about the same situation. NGA archive coverage ends 2024-05; live collection began 2026-08-17. The period between them is incomplete. An empty year is not evidence that no hazards occurred.
- Three containers, red and black, adrift in vicinity 48-32.82N 006-08.37W2024-03-10
- Ile d yeu light 46-43.04N 002-22.92W at reduced intensity until 22 feb2024-02-21
- Ile d yeu light 46-43.04N 002-22.92W at reduced intensity2024-02-13
- Ile d yeu light 46-43.04N 002-22.92W at reduced intensity2024-01-08
- Submerged orange object in vicinity 47-02.00N 003-17.00W2023-10-26
- Ile vierge light 48-38.33N 004-34.04W at reduced intensity2023-01-23
Month of issue in the collected archive
All available years combined. Uneven collection and repeat bulletins affect these counts; this chart does not measure the seasonality or probability of incidents.
Nearby notices listed in force · within 120 nm
No other collected notice is currently listed in force within this radius. This does not establish safe conditions.
Worldwide in the collected sources
21 other warnings listed in force · see all
Record snapshot 2026-10-02 22:35Z; source collection times vary.
Other
Everything the classifier did not place elsewhere. All current other warnings →
Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.