Hazardous operations 222345Z to 230345Z oct, alternates 2345Z to 0345Z commencing daily 23 thru 27 oct in…
Western North Atlantc · Virginia · Maryland · NAVAREA IV 917/19
What this record establishes
Archived notice · 2019-10-25 00:55Z
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) · WALLOPS 171540Z OCT 19.. Issued 2019-10-17 16:56Z. 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
- Western North Atlantc · Virginia · Maryland. No usable coordinates were parsed; a location-based nearby search is unavailable. Check the original wording for limits and qualifications.
Related notices and cancellation links
- Hazardous operations 222345Z to 230345Z oct, alternates 2345Z to 0345Z commencing daily 23 thru 27 oct in…cancelled by this notice
- Cancel NAVAREA IV 917/19 and this msg, operations completedlater cancellation notice
Activity windows · 6 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2019-10-22 23:45Z | 2019-10-23 03:45Z | — | 4 h |
| 2019-10-23 23:45Z | 2019-10-24 03:45Z | — | 4 h |
| 2019-10-24 23:45Z | 2019-10-25 03:45Z | — | 4 h |
| 2019-10-25 23:45Z | 2019-10-26 03:45Z | — | 4 h |
| 2019-10-26 23:45Z | 2019-10-27 03:45Z | — | 4 h |
| 2019-10-27 23:45Z | 2019-10-28 03:45Z | — | 4 h |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2019-10-17 16:56Z
- status
- Archived notice
- self-cancels
- 2019-10-28 04:45Z
- authority
- WALLOPS 171540Z OCT 19.
- NAVAREA
- NAVAREA IV
- issued by
- WALLOPS
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
WESTERN NORTH ATLANTC.
VIRGINIA.
MARYLAND.
1. HAZARDOUS OPERATIONS 222345Z TO 230345Z OCT,
ALTERNATES 2345Z TO 0345Z COMMENCING DAILY
23 THRU 27 OCT IN AREAS BOUND BY:
A. 37-49-06N 75-29-55W, 37-45-30N 75-15-53W,
37-52-40N 75-14-48W, 37-51-32N 75-28-17W,
37-49-06N 75-29-55W.
B. 37-12-25N 74-49-27W, 37-06-13N 74-03-47W,
37-52-01N 73-50-34W, 38-15-30N 74-16-55W,
38-13-51N 74-35-00W, 37-44-30N 74-50-52W.
2. CANCEL NAVAREA IV 916/19.
3. CANCEL THIS MSG 280445Z OCT 19.
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.
- 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.
Nearby notices listed in force · within 120 nm
No parsed position is available for this comparison.
Worldwide in the collected sources
9 military exercises listed in force · see all
Record snapshot 2026-10-04 02:39Z; 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.