Hazardous operations 201730Z to 202030Z mar in area bound by: 36-49.0N 075-30.0W, 36-48.0N 075-00.0W,…
North Atlantic Ocean · NAVAREA IV 291/23
What this record establishes
Archived notice · 2023-03-15 20:47Z
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) · FACSFAC VACAPES 0/23 151502Z MAR 23.. Issued 2023-03-15 16:49Z. 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 Atlantic 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
- Virginia cancel NAVAREA IV 291/23 and this msg, msg promulgated in errorlater cancellation notice
Current notices and reporting history in the North Atlantic Ocean →
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2023-03-20 17:30Z | 2023-03-20 20:30Z | — | 3 h |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2023-03-15 16:49Z
- status
- Archived notice
- self-cancels
- 2023-03-20 21:30Z
- authority
- FACSFAC VACAPES 0/23 151502Z MAR 23.
- NAVAREA
- NAVAREA IV
- issued by
- FACSFAC VACAPES
- sea
- North Atlantic Ocean
- position
- 36.728, -75.237
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
WESTERN NORTH ATLANTIC. VIRGINIA. 1. HAZARDOUS OPERATIONS 201730Z TO 202030Z MAR IN AREA BOUND BY: 36-49.0N 075-30.0W, 36-48.0N 075-00.0W, 36-37.0N 075-00.0W, 36-41.0N 075-30.0W. 2. CANCEL THIS MSG 202130Z MAR 23.
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
30 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.
- Hazardous operations: a. 1700Z to 0300Z daily 30 nov and 01 dec in area bound by 36-49.00N 075-30.00W,…2022-11-30
- Hazardous operations: a. 200000Z to 240001Z oct in area bound by 34-17N 076-45W, 33-49N 076-30W, 33-33N…2021-10-20
- Hazardous operations 121200Z to 122200Z jan in area bound by 36-49N 075-30W, 36-32N 075-30W, 36-26N 075-00W,…2021-01-07
- Hazardous operations: a. 011600Z to 012300Z dec in area bound by 36-49N 075-30W, 36-47N 074-28W, 36-19N…2020-12-01
- Hazardous operations 222345Z to 230345Z oct, alternates 2345Z to 0345Z commencing daily 23 thru 27 oct in…2019-10-17
- Hazardous operations 021300Z to 021600Z oct in area bound by 34-28N 076-25W, 34-05N 076-05W, 33-50N 076-28W,…2019-09-27
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
9 military exercises listed in force · see all
Record snapshot 2026-10-04 01:18Z; 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.