Surveys

Salvage operations in progress until 25 dec within 1.5 miles of 37-38-27.0N 123-07-32.4E

Yellow Sea · HYDROPAC 2934/13

What this record establishes

Archived notice · 2013-12-26 00:01Z

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) · NAVAREA XI 709/13 251140Z SEP 13.. Issued 2013-09-25 12:24Z. 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
Yellow Sea. The parsed report position is 37.641, 123.126 with a 1.5 nm radius. 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

Current notices and reporting history in the Yellow Sea →

issued
2013-09-25 12:24Z
status
Archived notice
authority
NAVAREA XI 709/13 251140Z SEP 13.
NAVAREA
NAVAREA XI · named as the source of this relay
sea
Yellow Sea
position
37.641, 123.126 · r 1.5 nm
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

YELLOW SEA.
1. SALVAGE OPERATIONS IN PROGRESS UNTIL 25 DEC
   WITHIN 1.5 MILES OF 37-38-27.0N 123-07-32.4E.
2. CANCEL HYDROPAC 2863/13.
3. CANCEL THIS MSG 26 DEC 13.

Reading this warning

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.
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.
CANCEL THIS MSG
The warning's own expiry: a line telling the reader when the message cancels itself.

All warning terms →

Collected reports in this area · survey operations

11 within 180 nm since 2000 · 0 in the last 12 months · 0 listed in force now

00
05
10
13

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

56 survey operations listed in force · see all

Record snapshot 2026-10-03 15:05Z; source collection times vary.

Surveys

Hydrographic and scientific survey vessels, often towing long arrays. All current survey operations →

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.