Mine sweeping operations 012359Z to 180001Z sep a. in area bound by 55-26N 020-40E, 55-46N 020-40E, 55-46N…
Baltic Sea · HYDROLANT 1492/07
What this record establishes
Archived notice · 2007-09-18 01:01Z
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) · LITHUANIA 28/07 28 AUG 07.. Issued 2007-08-28 14:28Z. 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
- Baltic 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 |
|---|---|---|---|
| 2007-09-01 23:59Z | 2007-09-18 00:01Z | — | 384 h 02 |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2007-08-28 14:28Z
- status
- Archived notice
- self-cancels
- 2007-09-18 01:01Z
- authority
- LITHUANIA 28/07 28 AUG 07.
- issued by
- LITHUANIA
- sea
- Baltic Sea
- position
- 55.675, 20.581
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
1. MINE SWEEPING OPERATIONS 012359Z TO 180001Z SEP
A. IN AREA BOUND BY
55-26N 020-40E, 55-46N 020-40E,
55-46N 020-44E, 55-36N 020-44E,
55-36N 020-48E, 55-26N 020-48E.
B. IN AREA BOUND BY
55-22N 020-46E, 55-25N 020-42E,
55-34N 020-42E, 55-37N 020-46E,
55-34N 021-00E, 55-25N 021-00E.
C. IN AREA BOUND BY
55-40N 020-15E, 55-56N 020-15E,
55-56N 020-05E, 55-59N 020-05E,
55-59N 020-24E, 55-50N 020-24E,
55-50N 020-28E, 55-48N 020-28E,
55-48N 020-40E, 55-40N 020-40E.
D. IN AREA BETWEEN
55-30N 55-40N AND 020-24E 020-40E.
E. IN AREA BETWEEN
55-54N 56-00N AND 020-40E 020-52E.
2. CANCEL THIS MSG 180101Z SEP.
Reading this warning
- Mines and mine danger areas
- Sea mines reported adrift or found, and areas where mines are known or suspected to remain.
- 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
3 within 180 nm since 2007 · 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.
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
23 other warnings listed in force · see all
Record snapshot 2026-09-28 18:27Z; 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.