Mines

Mine adrift, possibly marked by red flag, vicinity 52-36N 002-17E at 291720Z mar

North Sea · HYDROLANT 1028/01

What this record establishes

Archived notice · 2001-04-05 11:41Z

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 757/01 310947Z MAR 01. Issued 2001-03-31 10:55Z. 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 Sea. The parsed report position is 52.600, 2.283. 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

These reports were linked by category and sea, with positions within 30 nautical miles and issue dates within 30 days of another report's recorded in-force span. Links can extend through other members, so the full group can cover a larger area or period. Proximity does not confirm that they describe one incident.

  1. HYDROLANT 1002/012001-03-28 · Archived notice
  2. HYDROLANT 1014/012001-03-29 · Archived notice
  3. HYDROLANT 1028/01 · this notice2001-03-31 · Archived notice
Compare all 3 notices, changes and original texts →

Current notices and reporting history in the North Sea →

issued
2001-03-31 10:55Z
status
Archived notice
authority
WZ 757/01 310947Z MAR 01
issued by
WZ
sea
North Sea
position
52.600, 2.283
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

1. MINE ADRIFT, POSSIBLY MARKED BY RED FLAG, VICINITY
   52-36N 002-17E AT 291720Z MAR.
2. CANCEL HYDROLANT 1014/01

Reading this warning

Mines and mine danger areas
Sea mines reported adrift or found, and areas where mines are known or suspected to remain.
Adrift
Loose and moving with wind and current — a vessel, container, buoy, log or anything else no longer secured.
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.
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.
Cancellation reference
A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
HYDROLANT
The U.S. long-range warning series for Atlantic waters outside NAVAREA IV, including the eastern Atlantic, the Mediterranean and adjoining seas.

All warning terms →

Collected reports in this area · mine warnings

6 within 180 nm since 1998 · 0 in the last 12 months · 0 listed in force now

98
00
01

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

J
F
M
A
M
J
J
A
S
O
N
D

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

8 mine warnings listed in force · see all

Record snapshot 2026-10-03 19:15Z; source collection times vary.

Mines

Drifting or reported sea mines. Mostly the Black Sea since 2022. All current mine 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.