Hazardous operations 0300Z to 1100Z daily 01 thru 04 oct: a. in area bound by 47-36N 151-21E, 47-54N…
Sea of Okhotsk · HYDROPAC 1641/05
What this record establishes
Archived notice · 2005-10-04 12:00Z
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 50/05 01 OCT 05.. Issued 2005-10-01 22:47Z. 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
Current notices and reporting history in the Sea of Okhotsk →
Activity windows · 4 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2005-10-01 03:00Z | 2005-10-01 11:00Z | — | 8 h |
| 2005-10-02 03:00Z | 2005-10-02 11:00Z | — | 8 h |
| 2005-10-03 03:00Z | 2005-10-03 11:00Z | — | 8 h |
| 2005-10-04 03:00Z | 2005-10-04 11:00Z | — | 8 h |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2005-10-01 22:47Z
- status
- Archived notice
- self-cancels
- 2005-10-04 12:00Z
- authority
- NAVAREA XIII 50/05 01 OCT 05.
- NAVAREA
- NAVAREA XIII · named as the source of this relay
- sea
- Sea of Okhotsk
- position
- 57.177, 140.550
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
1. HAZARDOUS OPERATIONS 0300Z TO 1100Z DAILY
01 THRU 04 OCT:
A. IN AREA BOUND BY
47-36N 151-21E, 47-54N 151-06E,
48-06N 151-40E, 47-52N 151-58E.
B. WITHIN 27 MILES OF 52-49N 146-17E.
C. WITHIN 27.5 MILES OF 57-09N 140-33E.
2. CANCEL HYDROPAC 1578/05.
3. CANCEL THIS MSG 041200Z OCT.
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.
- Within a radius of
- A circular area — every position within a stated distance of a point.
- 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
13 within 180 nm since 1999 · 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.
- Hazardous operations2011-10-01
- Hazardous operations 0300Z to 0900Z daily 06 thru 09 oct a. in area bound by 47-36.0N 151-21.0E, 47-41.5N…2009-10-03
- Hazardous operations 0300Z to 0900Z daily 12 thru 15 oct a. in area bound by 47-36N 151-21E, 47-54N 151-06E,…2008-10-11
- Hazardous operations 0800Z to 1200Z daily 07 thru 10 aug in areas: a. bound by 47-36.0N 151-21.0E, 47-41.3N…2007-08-02
- Hazardous operations 07 thru 13 sep: a. in area bound by 47-36.0N 151-17.0E, 47-41.5N 151-18.0E, 48-03.0N…2006-09-04
- Hazardous operations 2300Z to 0700Z commencing daily 30 sep thru 03 oct: a. in area bound by 47-36N 151-21E,…2005-09-25
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
No other collected notice is currently listed in force within this radius. This does not establish safe conditions.
Worldwide in the collected sources
28 military exercises listed in force · see all
Record snapshot 2026-10-02 13:50Z; 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.