Missile exercises 142100Z to 232100Z apr in area bound by 46-16N 142-40E, 46-23N 142-40E, 46-23N 142-50E,…
Sea of Okhotsk · HYDROPAC 1137/20
What this record establishes
Archived notice · 2020-04-23 22:00Z
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) · NAVAL AIR WARFARE CENTER 38/20 090907Z APR 20.. Issued 2020-04-09 09:36Z. 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
- Sea of Okhotsk. 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.
- HYDROPAC 1136/202020-04-09 · Archived notice
- HYDROPAC 1137/20 · this notice2020-04-09 · Archived notice
Current notices and reporting history in the Sea of Okhotsk →
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2020-04-14 21:00Z | 2020-04-23 21:00Z | — | 216 h |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2020-04-09 09:36Z
- status
- Archived notice
- self-cancels
- 2020-04-23 22:00Z
- authority
- NAVAL AIR WARFARE CENTER 38/20 090907Z APR 20.
- issued by
- NAVAL AIR WARFARE CENTER
- sea
- Sea of Okhotsk
- position
- 46.325, 142.750
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
SEA OF OKHOTSK. SAKHALIN. DNC 24. 1. MISSILE EXERCISES 142100Z TO 232100Z APR IN AREA BOUND BY 46-16N 142-40E, 46-23N 142-40E, 46-23N 142-50E, 46-16N 142-50E. 2. CANCEL THIS MSG 232200Z APR 20.
Reading this warning
- DNC (Digital Nautical Chart)
- A reference to one of the regions of NGA's Digital Nautical Chart, used to tell the reader which charts a warning affects.
- Missile firing
- Missile tests or exercises, with the danger area and times during which missiles may be in flight or falling.
- 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.
- CANCEL THIS MSG
- The warning's own expiry: a line telling the reader when the message cancels itself.
Collected reports in this area · missile & rocket hazards
29 within 180 nm since 2010 · 3 in the last 12 months · 0 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.
- Missile operations 151400Z to 161000Z sep in area bound by 50-16.00N 140-28.20E, 50-11.30N 140-47.80E,…2026-09-14
- Missile operations 1400Z to 1000Z daily 16 thru 18 and 20 thru 22 sep in area bound by 50-16.00N 140-28.20E,…2026-09-11
- Missile operations 2000Z to 1200Z daily 10 thru 15 aug in area bound by 46-54.80N 144-08.60E, 47-35.30N…2026-08-11
- Missile operations 1400Z to 0800Z daily 18 thru 24 mar in area bound by 50-16.00N 140-28.20E, 50-11.30N…2024-03-13
- Missile and gunnery operations 2200Z to 1000Z daily 04 thru 19 jun in area bound by 48-15.00N 141-35.00E,…2023-06-01
- Missile and gunnery 2200Z to 1000Z daily 04 thru 19 jun in area bound by 47-15.00N 141-30.00E, 47-00.00N…2023-05-31
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
4 missile & rocket hazards listed in force · see all
Record snapshot 2026-09-29 13:57Z; 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.