Exercises
Hazardous operations 0400Z to 0900Z daily 27 to 29 aug in area between 37-25N 37-30N and 124-43E 124-50E
Yellow Sea · HYDROPAC 3105/18
- issued
- 2018-08-24 13:13Z
- status
- cancelled 2018-08-29 10:00Z (archive)
- self-cancels
- 2018-08-29 10:00Z
- authority
- NAVAREA XI 430/18 241211Z AUG 18.
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
YELLOW SEA. DNC 23. 1. HAZARDOUS OPERATIONS 0400Z TO 0900Z DAILY 27 TO 29 AUG IN AREA BETWEEN 37-25N 37-30N AND 124-43E 124-50E. 2. CANCEL THIS MSG 291000Z AUG 18.
Activity windows · 3 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2018-08-27 04:00Z | 2018-08-27 09:00Z | — | 5 h |
| 2018-08-28 04:00Z | 2018-08-28 09:00Z | — | 5 h |
| 2018-08-29 04:00Z | 2018-08-29 09:00Z | — | 5 h |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
Nearby now · within 120 nm
Nothing else in force within 120 nm.
Worldwide now
35 military exercises in force · see all
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.