Exercises
Gunnery exercises 2300Z to 0900Z commencing daily 04 thru 10 mar in area between 35-35N 36-00N and 125-00E…
Yellow Sea · Gunnery · HYDROPAC 575/12
What this record establishes
Archived notice · 2012-03-11 10:00Z
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) · NAVAREA XI 137/12 281205Z FEB 12 - NAVAREA VII 55/12 271455Z FEB 12.. Issued 2012-02-28 16:35Z. 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 · Gunnery. No usable coordinates were parsed; a location-based nearby search is unavailable. Check the original wording for limits and qualifications.
Related notices and cancellation links
Activity windows · 7 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2012-03-04 23:00Z | 2012-03-05 09:00Z | — | 10 h |
| 2012-03-05 23:00Z | 2012-03-06 09:00Z | — | 10 h |
| 2012-03-06 23:00Z | 2012-03-07 09:00Z | — | 10 h |
| 2012-03-07 23:00Z | 2012-03-08 09:00Z | — | 10 h |
| 2012-03-08 23:00Z | 2012-03-09 09:00Z | — | 10 h |
| 2012-03-09 23:00Z | 2012-03-10 09:00Z | — | 10 h |
| 2012-03-10 23:00Z | 2012-03-11 09:00Z | — | 10 h |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2012-02-28 16:35Z
- status
- Archived notice
- self-cancels
- 2012-03-11 10:00Z
- authority
- NAVAREA XI 137/12 281205Z FEB 12 - NAVAREA VII 55/12 271455Z FEB 12.
- NAVAREA
- NAVAREA XI · named as the source of this relay
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
YELLOW SEA. GUNNERY. 1. GUNNERY EXERCISES 2300Z TO 0900Z COMMENCING DAILY 04 THRU 10 MAR IN AREA BETWEEN 35-35N 36-00N AND 125-00E 125-30E. 2. CANCEL HYDROPAC 532/12(61). 3. CANCEL THIS MSG 111000Z MAR.
Reading this warning
- Gunnery and live firing
- Naval or coastal guns firing into a sea area for practice, at stated times.
- 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.
- 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.
Nearby notices listed in force · within 120 nm
No parsed position is available for this comparison.
Worldwide in the collected sources
28 military exercises listed in force · see all
Record snapshot 2026-10-02 00:57Z; source collection times vary.
Exercises
Gunnery, firing and naval exercise areas. All current military exercises →
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.