Hazardous operations 0500Z to 1700Z daily 20 thru 25 dec in areas bound by 44-45.0N 036-41.5E, 44-33.0N…
Black Sea · HYDROLANT 3103/21
What this record establishes
Archived notice · 2021-12-26 18:00Z
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 III 883/21 190007Z DEC 21.. Issued 2021-12-19 00:19Z. 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
- Black Sea. The map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.
Activity windows · 6 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2021-12-20 05:00Z | 2021-12-20 17:00Z | — | 12 h |
| 2021-12-21 05:00Z | 2021-12-21 17:00Z | — | 12 h |
| 2021-12-22 05:00Z | 2021-12-22 17:00Z | — | 12 h |
| 2021-12-23 05:00Z | 2021-12-23 17:00Z | — | 12 h |
| 2021-12-24 05:00Z | 2021-12-24 17:00Z | — | 12 h |
| 2021-12-25 05:00Z | 2021-12-25 17:00Z | — | 12 h |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2021-12-19 00:19Z
- status
- Archived notice
- self-cancels
- 2021-12-26 18:00Z
- authority
- NAVAREA III 883/21 190007Z DEC 21.
- NAVAREA
- NAVAREA III · named as the source of this relay
- sea
- Black Sea
- position
- 44.488, 36.852
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
BLACK SEA. UKRAINE. DNC 10. 1. HAZARDOUS OPERATIONS 0500Z TO 1700Z DAILY 20 THRU 25 DEC IN AREAS BOUND BY 44-45.0N 036-41.5E, 44-33.0N 037-06.5E, 44-25.0N 037-06.5E, 44-14.0N 036-40.0E. 2. CANCEL THIS MSG 261800Z DEC 21.
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.
- Area bound by
- Introduces a list of positions that are the corners of an area — the polygon the warning applies to.
- 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.
- 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
1014 within 180 nm since 1999 · 2 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 1000Z to 1130Z daily 30 sep thru 02 oct in area bound by 41-10.77N 040-50.82E,…2026-09-27
- Hazardous operations 1000Z to 1130Z daily 30 sep thru 02 oct in area bound by 41-10.77N 040-50.82E,…2026-09-25
- Hazardous operations 102101Z to 162130Z mar in area bound by 42-38.02N 037-46.57E, 42-40.35N 037-40.37E,…2024-03-07
- Hazardous operations 0300Z to 0430Z daily 23 thru 25 may in area bound by 42-44.37N 031-32.30E, 42-42.88N…2023-05-19
- Hazardous operations 192101Z mar to 022059Z apr in area bound by 42-01.58N 035-10.75E, 42-15.77N 035-11.78E,…2023-03-15
- Hazardous operations 062101Z to 182059Z feb in area bound by 42-01.58N 035-10.75E, 42-15.77N 035-11.78E,…2023-02-04
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 00:34Z; 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.