Hazardous operations 210600Z to 230400Z jan in area bound by 36-00N 015-00E, 38-00N 016-45E, 38-00N 018-00E,…
Ionian Sea · HYDROLANT 183/21
What this record establishes
Archived notice · 2021-01-21 01:50Z
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 60/21 201300Z JAN 21.. Issued 2021-01-20 12:01Z. 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
- Ionian 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.
Related notices and cancellation links
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2021-01-21 06:00Z | 2021-01-23 04:00Z | — | 46 h |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2021-01-20 12:01Z
- status
- Archived notice
- self-cancels
- 2021-01-23 05:00Z
- authority
- NAVAREA III 60/21 201300Z JAN 21.
- NAVAREA
- NAVAREA III · named as the source of this relay
- sea
- Ionian Sea
- position
- 36.863, 16.877
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
EASTERN MEDITERRANEAN SEA. IONIAN SEA SICILY. DNC 09. 1. HAZARDOUS OPERATIONS 210600Z TO 230400Z JAN IN AREA BOUND BY 36-00N 015-00E, 38-00N 016-45E, 38-00N 018-00E, 36-00N 018-00E. 2. CANCEL THIS MSG 230500Z JAN 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.
- 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.
- 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.
Collected reports in this area · military exercises
300 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.
- Hazardous operations 070001Z to 092359Z mar in area bound by 34-43.00N 017-33.00E, 34-20.00N 017-50.00E,…2023-03-04
- Hazardous operations 260400Z feb to 101800Z mar in area bound by 37-00.00N 011-00.00E, 39-00.00N 011-00.00E,…2023-02-20
- Hazardous operations 0800Z to 1630Z daily until 31 dec except sundays in area bound by 35-55.54N 014-28.32E,…2021-06-18
- Hazardous operations 220400Z feb to 081200Z mar in area bound by 36-00N 015-00E, 37-50N 015-00E, 37-50N…2021-02-21
- Hazardous operations 160001Z feb to 082259Z mar in areas bound by: a. 36-00N 015-00E 37-50N 015-00E, 37-50N…2021-02-14
- Hazardous operations 211400Z to 220400Z jan in area bound by 35-00N 015-40E, 37-30N 015-40E, 37-30N 017-40E,…2021-01-21
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
Worldwide in the collected sources
28 military exercises listed in force · see all
Record snapshot 2026-10-01 06:54Z; 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.