Hazardous operations 1900Z to 0500Z commencing daily 15 thru 18 sep in areas bound by: a. 47-40.0N…
Sea of Okhotsk · HYDROPAC 1796/08
What this record establishes
Archived notice · 2008-09-19 06:00Z
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 XIII 53/08 14 SEP 08.. Issued 2008-09-14 11:01Z. 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
- Sea of Okhotsk. The map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.
Related notices and cancellation links
- Distress signal received on 243 mhz in 09-49.8N 133-08.3E at 140238Z sepcancelled by this notice
Current notices and reporting history in the Sea of Okhotsk →
Activity windows · 4 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2008-09-15 19:00Z | 2008-09-16 05:00Z | — | 10 h |
| 2008-09-16 19:00Z | 2008-09-17 05:00Z | — | 10 h |
| 2008-09-17 19:00Z | 2008-09-18 05:00Z | — | 10 h |
| 2008-09-18 19:00Z | 2008-09-19 05:00Z | — | 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
- 2008-09-14 11:01Z
- status
- Archived notice
- self-cancels
- 2008-09-19 06:00Z
- authority
- NAVAREA XIII 53/08 14 SEP 08.
- NAVAREA
- NAVAREA XIII · named as the source of this relay
- sea
- Sea of Okhotsk
- position
- 53.358, 154.777
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
1. HAZARDOUS OPERATIONS 1900Z TO 0500Z COMMENCING
DAILY 15 THRU 18 SEP IN AREAS BOUND BY:
A. 47-40.0N 150-15.0E, 48-30.0N 150-22.0E,
48-22.0N 151-21.0E, 47-35.5N 150-50.5E,
B. 48-00.0N 151-00.0E, 48-14.5N 151-03.5E,
51-38.0N 154-06.0E, 55-14.0N 154-13.0E,
55-54.0N 154-44.0E, 56-24.0N 155-27.0E,
56-20.0N 155-42.0E, 55-13.5N 155-32.0E,
55-05.0N 155-27.5E, 51-32.5N 155-20.0E,
48-06.0N 151-23.5E.
2. CANCEL HYDROPAC 1790/08(81), SIGNAL CEASED.
3. CANCEL THIS MSG 190600Z SEP.
Reading this warning
- Hazardous operations
- NGA's heading for activities that make an area dangerous — most often rocket launches, space debris and weapons firings, and some open-ended danger areas.
- Area bound by
- Introduces a list of positions that are the corners of an area — the polygon the warning applies to.
- 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.
Collected reports in this area · military exercises
21 within 180 nm since 2001 · 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.
- Gunnery exercises 221400Z to 261400Z jul in area bound by 52-30.0N 159-17.0E, 52-45.0N 159-17.0E, 52-45.0N…2019-07-17
- Hazardous operations2015-04-08
- Hazardous operations2015-04-02
- Hazardous operations2015-03-29
- Hazardous operations 1900Z to 0500Z commencing daily 13, 14 and 18 thru 20 oct, 151600Z to 160200Z and…2009-10-13
- Hazardous operations 1900Z to 0500Z commencing daily 07 thru 09 oct in areas bound by: a. 47-35.0N…2009-10-03
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
Worldwide in the collected sources
9 military exercises listed in force · see all
Record snapshot 2026-10-03 22:34Z; 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.