Hazardous operation 040600Z to 041000Z nov in area bound by 39-00.0N 025-18.0E, 38-54.0N 024-52.0E, 39-14.0N…
Aegean Sea · HYDROLANT 3375/19
What this record establishes
Archived notice · 2019-11-04 11:00Z
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) · GREEK NAVTEX LIMNOS 274/19 021530Z NOV 19.. Issued 2019-11-02 15:32Z. 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
- Aegean 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 · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2019-11-04 06:00Z | 2019-11-04 10:00Z | — | 4 h |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2019-11-02 15:32Z
- status
- Archived notice
- self-cancels
- 2019-11-04 11:00Z
- authority
- GREEK NAVTEX LIMNOS 274/19 021530Z NOV 19.
- issued by
- GREEK NAVTEX LIMNOS
- sea
- Aegean Sea
- position
- 39.149, 25.009
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
AEGEAN SEA. DNC 09. 1. HAZARDOUS OPERATION 040600Z TO 041000Z NOV IN AREA BOUND BY 39-00.0N 025-18.0E, 38-54.0N 024-52.0E, 39-14.0N 024-40.0E, 39-25.5N 025-11.5E. 2. CANCEL THIS MSG 041100Z NOV 19.
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.
- 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 · other warnings
9 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 operation 030600Z to 031500Z mar in area bound by 37-29.32N 026-56.49E, 37-29.20N 026-58.46E,…2020-03-02
- Vessel requesting assistance in 37-57.4N 026-40.5E2018-04-02
- Pipelaying operations in progress until further notice in area bound by 40-33.45N 026-58.95E, 40-32.38N…2006-12-12
- Pipelaying operations in progress until further notice by M/V reggina 250 along trackline joining 40-33.45N…2006-06-22
- Geophysical operations 06 jun until further notice by M/V sentinel vicinity of trackline joining 37-58.0N…2001-06-02
- Five persons overboard from helicopter vicinity 37-32N 024-02E2001-01-16
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
23 other warnings listed in force · see all
Record snapshot 2026-10-02 00:21Z; 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.