Missiles · military

Missile firing in North Pacific near Hokkaido, daily from August 16 to 22, from 1400Z to 1000Z, in a defined area.

North Pacific Ocean · NAVAREA XI 369/26

What this record establishes

Cancelled notice · 2026-08-20 00:21Z

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
Japan Coast Guard JHOD NAVAREA XI · Japan Coast Guard (JHOD). Issued 2026-08-12 12:00Z. First collected 2026-08-17 13:42Z; last seen in collection 2026-08-17 14:24Z. 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 XI 369/26 · this notice2026-08-12 · Cancelled notice
  2. HYDROPAC 2320/262026-08-12 · Cancelled notice
  3. NAVAREA XI 374/262026-08-20 · Cancelled notice
Compare all 3 notices, changes and original texts →

Current notices and reporting history in the North Pacific Ocean →

Activity windows · 7 in this warning

opens (UTC)closes (UTC)locallength
2026-08-16 14:00Z2026-08-17 10:00Z—20 h
2026-08-17 14:00Z2026-08-18 10:00Z—20 h
2026-08-18 14:00Z2026-08-19 10:00Z—20 h
2026-08-19 14:00Z2026-08-20 10:00Z—20 h
2026-08-20 14:00Z2026-08-21 10:00Z—20 h
2026-08-21 14:00Z2026-08-22 10:00Z—20 h
2026-08-22 14:00Z2026-08-23 10:00Z—20 h

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

issued
2026-08-12 12:00Z
status
Cancelled notice
self-cancels
2026-08-23 11:00Z
authority
Japan Coast Guard (JHOD)
NAVAREA
NAVAREA XI
issued by
JAPAN COAST GUARD
sea
North Pacific Ocean
position
43.949, 151.043
nearest port
Kushiro · 297 nm
source
Japan Coast Guard JHOD NAVAREA XI · first seen 2026-08-17 13:42Z

Original warning text

NORTH PACIFIC, HOKKAIDO.
MISSILE FIRING. 1400Z TO 1000Z
COMMENCING DAILY 16 TO 22 AUG.
AREA BOUNDED BY 47-16.3N 151-00.0E
47-16.3N 151-35.0E 44-24.0N 152-10.0E
42-45.6N 155-10.6E 40-48.0N 152-02.7E
42-10.0N 150-45.0E 42-10.0N 149-40.0E
43-25.0N 149-40.0E 44-45.0N 147-24.0E
45-56.0N 147-26.0E 45-58.0N 147-56.0E
46-20.0N 148-35.0E 45-51.0N 149-50.0E
46-14.0N 150-34.5E.
CANCEL THIS MSG 231100Z AUG.

Reading this warning

Missile firing
Missile tests or exercises, with the danger area and times during which missiles may be in flight or falling.
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.
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 →

Type

Military firing / hazardous-operations area — no matching space launch.

Collected reports in this area · missile & rocket hazards

12 within 180 nm since 2016 · 2 in the last 12 months · 0 listed in force now

16
20
25
26

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

6 missile & rocket hazards listed in force · see all

Record snapshot 2026-09-25 21:46Z; 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.