Hazardous operations 161900Z to 162030Z jan in area bound by 17-36N 076-40W, 17-26N 076-40W, 17-26N 076-30W,…
Caribbean Sea · NAVAREA IV 47/21
What this record establishes
Archived notice · 2021-01-16 21:30Z
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) · JAMAICA COAST GUARD 160301Z JAN 21.. Issued 2021-01-16 03:34Z. 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
- Caribbean Sea. The map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.
Current notices and reporting history in the Caribbean Sea →
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2021-01-16 19:00Z | 2021-01-16 20:30Z | — | 1 h 30 |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2021-01-16 03:34Z
- status
- Archived notice
- self-cancels
- 2021-01-16 21:30Z
- authority
- JAMAICA COAST GUARD 160301Z JAN 21.
- NAVAREA
- NAVAREA IV
- issued by
- JAMAICA COAST GUARD
- sea
- Caribbean Sea
- position
- 17.517, -76.583
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
CARIBBEAN SEA. JAMAICA. 1. HAZARDOUS OPERATIONS 161900Z TO 162030Z JAN IN AREA BOUND BY 17-36N 076-40W, 17-26N 076-40W, 17-26N 076-30W, 17-36N 076-30W. 2. CANCEL THIS MSG 162130Z JAN 21.
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.
- 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 · military exercises
6 within 180 nm since 1999 · 0 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.
- Gunnery exercises 1400Z to 2100Z daily 15 and 16 feb in area bound by 17-43N 076-38W, 17-33N 076-38W, 17-33N…2022-02-10
- Gunnery exercises 1400Z to 2100Z daily 25, 26 jan, 01 and 02 feb in area bound by 17-43.03N 076-38.76W,…2022-01-21
- Gunnery exercises 091400Z to 092100Z apr in area bound by 17-44N 076-27W, 17-33N 076-27W, 17-33N 076-37W,…2021-04-06
- Hazardous operations in progress until 28 may in area bound by 17-30N 076-40W, 17-30N 076-50W, 17-40N…2020-05-27
- Gunnery exercises 101700Z to 110500Z mar within 15 miles of 18-13.5N 075-30.0W1999-03-08
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
- Portland ridge light 17-44.50N 077-09.50W unlitNav aids · 35.6 nm
Worldwide in the collected sources
9 military exercises listed in force · see all
Record snapshot 2026-10-04 04:09Z; 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.