Hazardous operations 2200Z to 0800Z commencing daily 20 thru 24 jul within ten miles of 16-01N 146-04E
North Pacific Ocean · HYDROPAC 1364/08
What this record establishes
Archived notice · 2008-07-25 09:00Z
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) · NAVBASE GUAM 180547Z JUL 08; PVWA BOILEAU 18 JUL 08.. Issued 2008-07-18 12:17Z. 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 parsed report position is 16.017, 146.067 with a 10.0 nm radius. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.
Related notices and cancellation links
- Nga chart 82030 (8TH ed)cancelled by this notice
Current notices and reporting history in the North Pacific Ocean →
Activity windows · 5 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2008-07-20 22:00Z | 2008-07-21 08:00Z | — | 10 h |
| 2008-07-21 22:00Z | 2008-07-22 08:00Z | — | 10 h |
| 2008-07-22 22:00Z | 2008-07-23 08:00Z | — | 10 h |
| 2008-07-23 22:00Z | 2008-07-24 08:00Z | — | 10 h |
| 2008-07-24 22:00Z | 2008-07-25 08:00Z | — | 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
- 2008-07-18 12:17Z
- status
- Archived notice
- self-cancels
- 2008-07-25 09:00Z
- authority
- NAVBASE GUAM 180547Z JUL 08; PVWA BOILEAU 18 JUL 08.
- issued by
- NAVBASE GUAM
- sea
- North Pacific Ocean
- position
- 16.017, 146.067 · r 10.0 nm
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
1. HAZARDOUS OPERATIONS 2200Z TO 0800Z COMMENCING DAILY 20 THRU 24 JUL WITHIN TEN MILES OF 16-01N 146-04E. 2. CANCEL HYDROPAC 1357/08(83), REEF CHARTED. 3. CANCEL THIS MSG 250900Z JUL.
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.
- Within a radius of
- A circular area — every position within a stated distance of a point.
- 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
1500 within 180 nm since 2002 · 47 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 0100Z to 1300Z daily 06 thru 08 oct in areas within three miles of: a. 13-27.00N…2026-09-30
- Hazardous operations 0100Z to 1300Z daily 28 thru 30 sep and 01 oct in areas within three miles of: a.…2026-09-23
- Hazardous operations 2200Z to 0700Z daily 28 and 29 sep in 13-29.05N 144-40.05E2026-09-16
- Hazardous operations 210300Z to 210500Z and 250100Z to 250300Z sep in area bound by 13-24.75N 144-38.30E,…2026-09-16
- Hazardous operations 0100Z to 1300Z daily 22 thru 24 sep in areas within three miles of: a. 13-27.00N…2026-09-16
- Hazardous operations2026-09-15
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
28 military exercises listed in force · see all
Record snapshot 2026-10-02 04:03Z; 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.