Hazardous operations 130800Z to 191900Z jun in areas bound by: a. 34-24.00N 125-00.00W, 35-20.00N…
North Pacific Ocean · HYDROPAC 1587/22
What this record establishes
Archived notice · 2022-06-19 20:00Z
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) · SEA RANGE OTC 0/22 061701Z JUN 22.. Issued 2022-06-08 05:40Z. 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
- North Pacific Ocean. 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
- Cancel HYDROPAC 1587/22 and this msg, operations completedlater cancellation notice
Current notices and reporting history in the North Pacific Ocean →
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2022-06-13 08:00Z | 2022-06-19 19:00Z | — | 155 h |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2022-06-08 05:40Z
- status
- Archived notice
- self-cancels
- 2022-06-19 20:00Z
- authority
- SEA RANGE OTC 0/22 061701Z JUN 22.
- issued by
- SEA RANGE OTC
- sea
- North Pacific Ocean
- position
- 35.125, -134.333
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
NORTH PACIFIC.
DNC 12, DNC 13.
1. HAZARDOUS OPERATIONS 130800Z TO 191900Z JUN
IN AREAS BOUND BY:
A. 34-24.00N 125-00.00W, 35-20.00N 125-00.00W,
35-00.00N 123-00.00W, 34-38.00N 123-00.00W.
B. 34-40.00N 129-00.00W, 35-15.00N 129-00.00W,
35-15.00N 126-15.00W, 34-40.00N 126-15.00W.
C. 34-45.00N 136-40.00W, 35-30.00N 136-40.00W,
35-30.00N 132-00.00W, 34-45.00N 132-00.00W.
D. 30-45.00N 164-00.00W, 31-15.00N 165-00.00W,
32-45.00N 159-30.00W, 32-00.00N 159-00.00W.
E. 12-21.00N 151-09.00E, 13-30.00N 150-20.00E,
15-54.00N 154-57.00E, 15-06.00N 155-30.00E.
2. CANCEL THIS MSG 192000Z JUN 22.
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.
- 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.
- 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.
- 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.
- CANCEL THIS MSG
- The warning's own expiry: a line telling the reader when the message cancels itself.
Collected reports in this area · military exercises
20 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 operations 11 thru 16 dec: a. 1400Z to 1805Z daily in area bound by 35-01.00N 121-13.00W,…2023-12-07
- Hazardous operations 130800Z to 191900Z jun in areas bound by: a. 34-24.00N 125-00.00W, 35-20.00N…2022-06-08
- Hazardous operations2011-07-23
- Gunnery exercises 091700Z to 092000Z jul within 30000 yards of: a. 33-19N 135-29W2011-07-06
- Hazardous operations 2200Z to 2359Z daily 15 thru 18 nov in areas bound by: a. 33-04N 125-37W, 33-50N…2004-11-10
- Hazardous operations 1730Z to 0059Z commencing daily 09 thru 11 jan in areas: a. between 34-50N 34-53N and…2004-01-05
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
9 military exercises listed in force · see all
Record snapshot 2026-10-02 20:16Z; 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.