Hazardous operations 0800Z to 1700Z daily 17 thru 21 feb in areas within 25 miles of 57-29.2N 008-19.7W
North Atlantic Ocean · HYDROLANT 564/20
What this record establishes
Archived notice · 2020-02-18 11:49Z
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) · WZ 183/20 170533Z FEB 20.. Issued 2020-02-17 06:21Z. 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 57.487, -8.328 with a 25.0 nm radius. 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
- Cancel HYDROLANT 520/20(24,57)later cancellation notice
Current notices and reporting history in the North Atlantic Ocean →
Activity windows · 5 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2020-02-17 08:00Z | 2020-02-17 17:00Z | — | 9 h |
| 2020-02-18 08:00Z | 2020-02-18 17:00Z | — | 9 h |
| 2020-02-19 08:00Z | 2020-02-19 17:00Z | — | 9 h |
| 2020-02-20 08:00Z | 2020-02-20 17:00Z | — | 9 h |
| 2020-02-21 08:00Z | 2020-02-21 17:00Z | — | 9 h |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2020-02-17 06:21Z
- status
- Archived notice
- self-cancels
- 2020-02-21 18:00Z
- authority
- WZ 183/20 170533Z FEB 20.
- issued by
- WZ
- sea
- North Atlantic Ocean
- position
- 57.487, -8.328 · r 25.0 nm
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
EASTERN NORTH ATLANTIC. SCOTLAND. DNC 19. 1. HAZARDOUS OPERATIONS 0800Z TO 1700Z DAILY 17 THRU 21 FEB IN AREAS WITHIN 25 MILES OF 57-29.2N 008-19.7W. VESSELS INTENDING TO ENTER AREA SHOULD CONTACT HEBRIDES RANGE CONTROL ON VHF CH 16 OR PHONE: 187 060 4449 FOR ADVICE. 2. CANCEL THIS MSG 211800Z FEB 20.
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.
- 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.
- 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.
- VHF / channel 16
- Very high frequency marine radio; channel 16 is the international distress, safety and calling channel.
- 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
346 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
9 military exercises listed in force · see all
Record snapshot 2026-10-03 02:33Z; 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.