Other

Hazardous opertaions 2000Z to 0400Z daily 07 thru 12 may and 14 thru 19 may in area within three miles of…

Tasman Sea · HYDROPAC 1459/23

What this record establishes

Archived notice · 2023-05-20 05:00Z

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) · CNW 114/23 022029Z MAY 23.. Issued 2023-05-02 20:39Z. 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: Tasman Sea. The parsed report position is -36.477, 174.161 with a 3.0 nm radius. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

Current notices and reporting history in the Tasman Sea →

Activity windows · 6 in this warning

opens (UTC)	closes (UTC)	local	length
2023-05-07 20:00Z	2023-05-08 04:00Z	—	8 h
2023-05-08 20:00Z	2023-05-09 04:00Z	—	8 h
2023-05-09 20:00Z	2023-05-10 04:00Z	—	8 h
2023-05-10 20:00Z	2023-05-11 04:00Z	—	8 h
2023-05-11 20:00Z	2023-05-12 04:00Z	—	8 h
2023-05-12 20:00Z	2023-05-13 04:00Z	—	8 h

Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.

issued: 2023-05-02 20:39Z
status: Archived notice
self-cancels: 2023-05-20 05:00Z
authority: CNW 114/23 022029Z MAY 23.
issued by: CNW
sea: Tasman Sea
position: -36.477, 174.161 · r 3.0 nm
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

TASMAN SEA.
NEW ZEALAND.
DNC 06.
1. HAZARDOUS OPERTAIONS 2000Z TO 0400Z DAILY
   07 THRU 12 MAY AND 14 THRU 19 MAY
   IN AREA WITHIN THREE MILES OF
   36-28.65S 174-09.63E.
2. CANCEL THIS MSG 200500Z MAY 23.

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.
Within a radius of: A circular area — every position within a stated distance of a point.
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.

All warning terms →

Collected reports in this area · other warnings

15 within 180 nm since 2000 · 1 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 2026-10-02 01:55Z; 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.