Other
Cancel HYDROPAC 4143/15, false alert
HYDROPAC 4144/15
What this record establishes
Archived notice · 2015-12-20 11:20Z
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) · COMCOGARD SECTOR GUAM 200850Z DEC 15 - MNZ 60/15 CX 200243Z DEC 15 - NAVAREA XV 337/15 CX 200210Z DEC 15 - - SHGA 20 DEC 15.. Issued 2015-12-20 11:20Z. 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
- No named location parsed. No usable coordinates were parsed; a location-based nearby search is unavailable. Check the original wording for limits and qualifications.
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- issued
- 2015-12-20 11:20Z
- status
- Archived notice
- authority
- COMCOGARD SECTOR GUAM 200850Z DEC 15 - MNZ 60/15 CX 200243Z DEC 15 - NAVAREA XV 337/15 CX 200210Z DEC 15 - - SHGA 20 DEC 15.
- NAVAREA
- NAVAREA XV · named as the source of this relay
- issued by
- COMCOGARD SECTOR GUAM
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
1. CANCEL HYDROPAC 4143/15, FALSE ALERT. 2. CANCEL HYDROPAC 4142/15, FALSE ALERT. 3. CANCEL HYDROPAC 3950/15, 3995/15, 4003/15, 4050/15, 4091/15, 4093/15, 4102/15. 4. CANCEL HYDROPAC 2812/11, 408/12, 2493/13. 5. CANCEL THIS MSG.
Reading this warning
- 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.
Nearby notices listed in force · within 120 nm
No parsed position is available for this comparison.
Worldwide in the collected sources
23 other warnings listed in force · see all
Record snapshot 2026-10-02 00:51Z; source collection times vary.
Other
Everything the classifier did not place elsewhere. All current other warnings →
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.