Incidents · sinking

25 foot vessel, white hull, three persons on board, taking on water in 16-35N 145-47E at 241945Z may

Philippine Sea · HYDROPAC 1546/21

What this record establishes

Archived notice · 2021-05-27 17:25Z

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) · RCC GUAM 242126Z MAY 21.. Issued 2021-05-24 21:54Z. 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: Philippine Sea. The parsed report position is 16.583, 145.783. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

Original warning text

WESTERN NORTH PACIFIC.
MARIANA ISLANDS.
DNC 12.
1. 25 FOOT VESSEL, WHITE HULL, THREE PERSONS ON BOARD,
   TAKING ON WATER IN 16-35N 145-47E AT 241945Z MAY.
   VESSELS IN VICINITY REQUESTED TO KEEP A SHARP
   LOOKOUT, ASSIST IF POSSIBLE.
   REPORTS TO RCC GUAM,
   PHONE: 671 355 4824, 671 355 4910,
   FAX: 671 355 4831,
   E-MAIL: RCCGUAM@USCG.MIL.
2. CANCEL HYDROPAC 1545/21.

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.
Persons on board (POB): The number of people reported aboard a vessel in distress, overdue or missing.
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.
Keep a sharp lookout: A request to every ship in the area to watch for the vessel, people or object described.
Assist if possible: The second half of the standard rescue request: ships able to help are asked to do so.
RCC / JRCC (Rescue Coordination Centre): The centre that organises search and rescue in its region; warnings ask ships to send their reports there.
Cancellation reference: A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
HYDROPAC: The U.S. long-range warning series for the Pacific outside NAVAREA XII and for the Indian Ocean, Persian Gulf and adjoining seas.

All warning terms →

Collected reports in this area · distress & casualty cases (archived)

134 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.

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

Due to tropical storm, the following ports are closed, until further noticeStorms · 89.7 nm

Worldwide in the collected sources

0 distress & casualty cases (archived) listed in force · see all

Record snapshot 2026-10-02 00:50Z; source collection times vary.

Incidents

Search-and-rescue broadcasts, published only once a case has been closed for 30 days: groundings, sinkings, capsizes, fires, man overboard, overdue vessels. Nothing here is live. All current distress & casualty cases (archived) →

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.