Other

Recent ship reports indicate local traffic is still using traffic separation scheme (tss) oriented 090-270…

South China Sea · HYDROPAC 1039/16

What this record establishes

Archived notice · 2017-01-28 18:11Z

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) · SFHSA 07 APR 16.. Issued 2016-04-07 23:13Z. 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
South China Sea. The map shows the reported line or operation extent; it is not a vessel track. Check the original wording for limits and qualifications.

Current notices and reporting history in the South China Sea →

issued
2016-04-07 23:13Z
status
Archived notice
authority
SFHSA 07 APR 16.
issued by
SFHSA
sea
South China Sea
position
22.133, 114.217
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

SOUTH CHINA SEA.
HONG KONG.
DNC 23.
CHART 93733.
1. DNC LIBRARY A2357840 UPDATED IN
   VDU PATCH 14/16.
2. RECENT SHIP REPORTS INDICATE LOCAL
   TRAFFIC IS STILL USING TRAFFIC SEPARATION
   SCHEME (TSS) ORIENTED 090-270 DEGREES
   ALONG TRACKLINE BETWEEN 22-08N 114-06E
   AND 22-08N 114-20E BASED ON CHINESE CHARTS.
   VESSELS ARE ADVISED TO USE CAUTION.
3. CANCEL HYDROPAC 795/16.

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.
Chart reference
The number of the nautical chart on which the reported position lies.
Track line joining
Introduces a route through a series of positions — a cable route, a tow's track or a survey line.
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.

All warning terms →

Collected reports in this area · other warnings

11 within 180 nm since 1999 · 0 in the last 12 months · 0 listed in force now

99
00
05
10
15
16

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

23 other warnings listed in force · see all

Record snapshot 2026-10-02 02:01Z; 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.