Missiles

Hazardous operations, rocket launching 180917Z to 181027Z nov, alternate 0917Z to 1027Z daily 19 and 20 nov…

North Pacific Ocean · NAVAREA XII 510/17

What this record establishes

Archived notice · 2017-11-20 11:27Z

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) · WESTERN RANGE 151528Z NOV 17.. Issued 2017-11-15 18:10Z. 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

These reports were linked by category and sea, with positions within 30 nautical miles and issue dates within 30 days of another report's recorded in-force span. Links can extend through other members, so the full group can cover a larger area or period. Proximity does not confirm that they describe one incident.

  1. NAVAREA XII 497/172017-11-05 · Archived notice
  2. NAVAREA XII 499/172017-11-07 · Archived notice
  3. NAVAREA XII 509/172017-11-15 · Archived notice
  4. NAVAREA XII 510/17 · this notice2017-11-15 · Archived notice
Compare all 4 notices, changes and original texts →

Current notices and reporting history in the North Pacific Ocean →

Activity windows · 1 in this warning

opens (UTC)closes (UTC)locallength
2017-11-18 09:17Z2017-11-18 10:27Z—1 h 10

Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.

issued
2017-11-15 18:10Z
status
Archived notice
self-cancels
2017-11-20 11:27Z
authority
WESTERN RANGE 151528Z NOV 17.
NAVAREA
NAVAREA XII
issued by
WESTERN RANGE
sea
North Pacific Ocean
position
10.892, -126.279
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

EASTERN NORTH PACIFIC.
CALIFORNIA.
1. HAZARDOUS OPERATIONS, ROCKET LAUNCHING
   180917Z TO 181027Z NOV, ALTERNATE
   0917Z TO 1027Z DAILY 19 AND 20 NOV
   IN AREAS BOUND BY:
   A. 30-45N 121-30W, 30-49N 121-53W,
      31-44N 121-39W, 31-39N 121-15W.
   B. 06-53N 126-21W, 07-13N 127-53W,
      13-21N 126-35W, 13-01N 125-01W.
2. CANCEL NAVAREA XII 509/17.
3. CANCEL THIS MSG 201127Z NOV 17.

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.
Rocket launching
The areas where spent rocket stages, boosters and fairings are expected to fall after a launch, with the launch window.
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.
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.
NAVAREA
One of the 21 ocean areas of the World-Wide Navigational Warning Service, each with a coordinator that broadcasts long-range warnings.
CANCEL THIS MSG
The warning's own expiry: a line telling the reader when the message cancels itself.

All warning terms →

Collected reports in this area · missile & rocket hazards

7 within 180 nm since 2011 · 0 in the last 12 months · 0 listed in force now

11
15
17

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

7 missile & rocket hazards listed in force · see all

Record snapshot 2026-10-03 20:31Z; source collection times vary.

Missiles

Missile firings, rocket launches and space debris re-entry areas. All current missile & rocket hazards →

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.