Hazardous operations are scheduled near Guam in the North Pacific from 2200Z to 0700Z daily on 28 and 29 September at 13-29.05N 144-40.05E; cancel at 300800Z September 26.
Philippine Sea · HYDROPAC 2748/26
What this record establishes
Cancelled notice · 2026-09-23 14:45Z
This notice disappeared from the issuing source's in-force list. No explicit recovery or all-clear is established by that removal.
- Source and dates
- NGA MSI in-force warnings (DailyMem*.txt). Issued 2026-09-16 09:39Z. First collected 2026-09-23 15:02Z; last seen in collection 2026-09-24 13:02Z. Collection dates record ingestion, not a new incident or a fresh field observation.
- Location covered
- Philippine Sea. The parsed report position is 13.484, 144.667. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.
Current notices and reporting history in the Philippine Sea →
- issued
- 2026-09-16 09:39Z
- status
- Cancelled notice
- self-cancels
- 2026-09-30 08:00Z
- sea
- Philippine Sea
- position
- 13.484, 144.667
- source
- NGA MSI in-force warnings (DailyMem*.txt) · first seen 2026-09-23 15:02Z
Original warning text
NORTH PACIFIC. GUAM. 1. HAZARDOUS OPERATIONS 2200Z TO 0700Z DAILY 28 AND 29 SEP IN 13-29.05N 144-40.05E. 2. CANCEL THIS MSG 300800Z SEP 26.
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.
- 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.
- 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
2009 within 180 nm since 2002 · 57 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 28 thru 30 sep and 01 oct in areas within three miles of: a.…2026-09-23
- Hazardous operations 2200Z to 1000Z daily 28 thru 30 sep in area bound by 12-40.00N 144-45.00E, 11-00.00N…2026-09-23
- Hazardous operations 242000Z to 251000Z sep in area bound by 12-40.00N 144-45.00E, 11-00.00N 144-45.00E,…2026-09-16
- 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 operations 162300Z to 170200Z sep in 13-29.05N 144-40.05E2026-09-15
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
- Uscg remote communication facility guam 13-29.00N 144-50.00E broadcast and communication services unreliableNav aids · 9.7 nm
- Guam hf NAVTEX station, V, 13-29.0N 144-50.0E, off airNav aids · 9.7 nm
- Due to tropical storm bavi: 1. the following port(s) are closed: a. rota island 14-08.35N 145-08.09EStorms · 50.2 nm
Worldwide in the collected sources
17 military exercises listed in force · see all
Record snapshot 2026-09-24 13:02Z; 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.