Hazardous operations 301700Z sep to 010200Z oct in area within one mile of 21-17.11N 157-59.40W
North Pacific Ocean · NAVAREA XII 663/26
What this record establishes
Listed in force
The latest collected record lists this warning as active. This is the status of the notice, not a live observation of conditions at the location.
- Source and dates
- NGA MSI in-force warnings (DailyMem*.txt). Issued 2026-09-21 21:47Z. First collected 2026-09-25 18:32Z; last seen in collection 2026-09-25 21:32Z. Collection dates record ingestion, not a new incident or a fresh field observation.
- Location covered
- North Pacific Ocean. The parsed report position is 21.285, -157.990 with a 1.0 nm radius. 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 North Pacific Ocean →
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2026-09-30 17:00Z | 2026-10-01 02:00Z | — | 9 h |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2026-09-21 21:47Z
- status
- Listed in force
- self-cancels
- 2026-10-01 03:00Z
- NAVAREA
- NAVAREA XII
- sea
- North Pacific Ocean
- position
- 21.285, -157.990 · r 1.0 nm
- nearest port
- Honolulu · 7 nm
- source
- NGA MSI in-force warnings (DailyMem*.txt) · first seen 2026-09-25 18:32Z
Original warning text
NORTH PACIFIC. HAWAII. 1. HAZARDOUS OPERATIONS 301700Z SEP TO 010200Z OCT IN AREA WITHIN ONE MILE OF 21-17.11N 157-59.40W. 2. CANCEL THIS MSG 010300Z OCT 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.
- 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.
- 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.
- CANCEL THIS MSG
- The warning's own expiry: a line telling the reader when the message cancels itself.
Conditions at the position · now
loading…
MET Norway · NOAA WaveWatch III · HYCOM · GEBCO 2020 · model data at the centroid, not an observation
Collected reports in this area · military exercises
18 within 180 nm since 1999 · 4 in the last 12 months · 1 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 171700Z to 180300Z sep in area within one mile of 21-17.48N 157-59.23W2026-09-16
- Hazardous operations 091600Z to 110400Z sep in area within one mile of 21-17.48N 157-59.23W2026-09-04
- Hazardous operations 27 thru 31 aug in area bound by 22-02.00N 159-48.00W, 22-02.00N 159-53.00W, 22-11.00N…2026-08-19
- Hazardous operations 171100Z to 171900Z apr, alternate 1300Z to 1900Z daily 18 thru 21 apr in area bound by…2023-04-15
- Hazardous operations 011700Z to 012100Z feb in area bound by 20-41N 158-04W, 18-49N 158-26W, 19-06N 159-16W,…2022-01-27
- Hazardous operations 010700Z to 011100Z feb in area bound by 20-41N 158-04W, 18-49N 158-26W, 19-06N 159-16W,…2022-01-27
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
30 military exercises listed in force · see all
Record snapshot 2026-09-25 21:45Z; 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.