Hazardous operations
North Atlantic Ocean · HYDROLANT 2765/14
What this record establishes
Archived notice · 2014-11-21 20:00Z
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) · NAVAREA I 337/14 160520Z NOV 14 - WZ 1463/14 160616Z NOV 14 - WZ 1464/14 160634Z NOV 14 - WZ 1465/14 160708Z NOV 14.. Issued 2014-11-16 07:55Z. 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
- North Atlantic Ocean. The parsed report position is 57.528, -9.548. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.
Related notices and cancellation links
- Submerged obstruction marked by orange buoy reported in 53-17.0N 001-24.5Ecancelled by this notice
- All navigational aids at platforms inoperative: a. DP3, 53-49.0N 003-33.7Wcancelled by this notice
- Underwater operations in progress until further notice by M/V cable one with submersible vicinity 53-17.0N…cancelled by this notice
- Pipelaying operations in progress until further notice by M/V sms shoalbuster vicinity of trackline joining…cancelled by this notice
Current notices and reporting history in the North Atlantic Ocean →
Activity windows · 5 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2014-11-17 08:00Z | 2014-11-17 19:00Z | — | 11 h |
| 2014-11-18 08:00Z | 2014-11-18 19:00Z | — | 11 h |
| 2014-11-19 08:00Z | 2014-11-19 19:00Z | — | 11 h |
| 2014-11-20 08:00Z | 2014-11-20 19:00Z | — | 11 h |
| 2014-11-21 08:00Z | 2014-11-21 19:00Z | — | 11 h |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2014-11-16 07:55Z
- status
- Archived notice
- self-cancels
- 2014-11-21 20:00Z
- authority
- NAVAREA I 337/14 160520Z NOV 14 - WZ 1463/14 160616Z NOV 14 - WZ 1464/14 160634Z NOV 14 - WZ 1465/14 160708Z NOV 14.
- NAVAREA
- NAVAREA I · named as the source of this relay
- sea
- North Atlantic Ocean
- position
- 57.528, -9.548
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
EASTERN NORTH ATLANTIC. SCOTLAND-WEST COAST. HAZARDOUS OPERATIONS. DNC 19. 1. HAZARDOUS OPERATIONS 0800Z TO 1900Z DAILY 17 THRU 21 NOV WITHIN: A. 30 MILES OF 57-28.1N 008-46.5W. B. 28 MILES OF 57-35.2N 010-19.3W. VESSELS INTENDING TO ENTER AREA SHOULD CONTACT HEBRIDES RANGE CONTROL ON VHF CH 16 OR PHONE: 187 060 4449 FOR ADVICE. 2. CANCEL HYDROLANT 2684/14(37), OBSTRUCTION REMOVED. 3. CANCEL HYDROLANT 2738/14(36), AIDS RESTORED. 4. CANCEL HYDROLANT 2759/14(37), 2762/14(37), OPERATIONS COMPLETED. 5. CANCEL THIS MSG 212000Z NOV 14.
Reading this warning
- Hazardous operations
- NGA's heading for activities that make an area dangerous — most often rocket launches, space debris and weapons firings, and some open-ended danger areas.
- 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.
- 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.
- VHF / channel 16
- Very high frequency marine radio; channel 16 is the international distress, safety and calling channel.
- Cancellation reference
- A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
- HYDROLANT
- The U.S. long-range warning series for Atlantic waters outside NAVAREA IV, including the eastern Atlantic, the Mediterranean and adjoining seas.
- Submerged obstruction
- Something on or near the seabed that could damage a ship, an anchor or fishing gear — its nature often unknown.
- CANCEL THIS MSG
- The warning's own expiry: a line telling the reader when the message cancels itself.
- 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.
Collected reports in this area · military exercises
348 within 180 nm since 2001 · 8 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.
- Hazardous operations 0700Z to 1600Z daily 05 thru 10 oct in areas within: a. 27 miles of 57-27.50N 008-20.50W2026-10-01
- Hazardous operations 0700Z to 1630Z daily 25 thru 26 sep and 28 sep thru 03 oct in areas within: a. 27 miles…2026-09-21
- Hazardous operations 180600Z to 181700Z sep in areas within: a. 27 miles of 57-27.50N 008-20.50W2026-09-16
- Hazardous operations 160600Z to 161700Z sep in areas within: a. 27 miles of 57-27.50N 008-20.50W2026-09-14
- Hazardous operations 0900Z to 2330Z daily 17 thru 21 sep in area within 140 miles of 58-14.00N 013-21.00W2026-09-12
- Hazardous operations 0800Z to 1800Z daily 04 thru 05 and 07 thru 12 sep in areas within: a. 27 miles of…2026-09-01
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
10 military exercises listed in force · see all
Record snapshot 2026-10-03 11:00Z; source collection times vary.
Exercises
Gunnery, firing and naval exercise areas. All current military exercises →
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.