Exercises

Hazardous operations 0701Z to 1528Z daily 02 and 03 apr in areas bound by: a. 10-14N 168-34E, 09-34N…

North Pacific Ocean · HYDROPAC 594/08

What this record establishes

Archived notice · 2008-04-02 11:52Z

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) · USAKA KWAJALEIN OPS W8125 25 MAR 08.. Issued 2008-03-30 07:49Z. 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

Current notices and reporting history in the North Pacific Ocean →

issued
2008-03-30 07:49Z
status
Archived notice
self-cancels
2008-04-03 16:28Z
authority
USAKA KWAJALEIN OPS W8125 25 MAR 08.
issued by
RTS SAFETY KWAJALEIN MH
sea
North Pacific Ocean
position
12.068, 171.085
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

1. HAZARDOUS OPERATIONS 0701Z TO 1528Z DAILY
   02 AND 03 APR IN AREAS BOUND BY:
   A. 10-14N 168-34E, 09-34N 168-58E,
      09-08N 168-16E, 09-01N 167-53E,
      08-55N 167-33E, 09-16N 167-21E,
      09-23N 167-33E, 09-31N 167-34E,
      09-48N 167-51E.
   B. 11-36N 170-24E, 13-06N 169-54E,
      14-00N 171-15E, 13-24N 172-48E,
      11-51N 173-06E, 10-51N 171-48E.
2. CANCEL HYDROPAC 524/06(97).
3. CANCEL THIS MSG 031628Z APR.

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.
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.

All warning terms →

Collected reports in this area · military exercises

64 within 180 nm since 1999 · 0 in the last 12 months · 0 listed in force now

99
00
05
10
15
20
23

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.

Month of issue in the collected archive

J
F
M
A
M
J
J
A
S
O
N
D

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

10 military exercises listed in force · see all

Record snapshot 2026-10-03 04:32Z; 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.