Hazardous operations 1000Z to 1430Z daily 18 thru 23 apr a. within 15 miles of 13-44.0N 080-14.0E
Bay of Bengal · HYDROPAC 544/01
What this record establishes
Archived notice · 2001-04-23 15:30Z
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) · NAVAREA VIII 226/01 IOR EGC #142 121005Z APR 01 NAVAREA VIII 224/01 IOR EGC #140 121003Z APR 01. Issued 2001-04-12 13:23Z. 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
- Bay of Bengal. The parsed report position is 13.733, 80.233 with a 15.0 nm radius. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.
Related notices and cancellation links
Current notices and reporting history in the Bay of Bengal →
Activity windows · 6 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2001-04-18 10:00Z | 2001-04-18 14:30Z | — | 4 h 30 |
| 2001-04-19 10:00Z | 2001-04-19 14:30Z | — | 4 h 30 |
| 2001-04-20 10:00Z | 2001-04-20 14:30Z | — | 4 h 30 |
| 2001-04-21 10:00Z | 2001-04-21 14:30Z | — | 4 h 30 |
| 2001-04-22 10:00Z | 2001-04-22 14:30Z | — | 4 h 30 |
| 2001-04-23 10:00Z | 2001-04-23 14:30Z | — | 4 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
- 2001-04-12 13:23Z
- status
- Archived notice
- self-cancels
- 2001-04-23 15:30Z
- authority
- NAVAREA VIII 226/01 IOR EGC #142 121005Z APR 01 NAVAREA VIII 224/01 IOR EGC #140 121003Z APR 01
- NAVAREA
- NAVAREA VIII · named as the source of this relay
- sea
- Bay of Bengal
- position
- 13.733, 80.233 · r 15.0 nm
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
1. HAZARDOUS OPERATIONS 1000Z TO 1430Z DAILY 18 THRU 23 APR
A. WITHIN 15 MILES OF 13-44.0N 080-14.0E.
B. IN AREAS BETWEEN:
1. 11-30N 12-45N AND 084-30E 086-00E.
2. 10-15N 11-30N AND 088-15E 090-00E.
3. 08-15N 09-45N AND 094-45E 095-30E.
2. CANCEL HYDROPAC 112/01, OPERATIONS COMPLETED.
3. CANCEL THIS MSG 231530Z APR.
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.
- Within a radius of
- A circular area — every position within a stated distance of a point.
- 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.
- HYDROPAC
- The U.S. long-range warning series for the Pacific outside NAVAREA XII and for the Indian Ocean, Persian Gulf and adjoining seas.
- 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.
Collected reports in this area · military exercises
528 within 180 nm since 1999 · 8 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 290830Z to 290930Z sep in area bound by 13-07.02N 080-18.01E, 13-14.90N 080-25.98E,…2026-09-25
- Hazardous operations 0130Z to 1130Z daily 24 thru 30 sep in area bound by 12-49.00N 080-46.00E, 12-59.00N…2026-09-22
- Hazardous operations 0130Z to 1130Z daily 25 thru 30 sep in area bound by 12-49.00N 080-46.00E, 12-59.00N…2026-09-21
- Hazardous operations 0130Z to 1130Z daily 21 thru 24 sep in area bound by 12-49.00N 080-46.00E, 12-59.00N…2026-09-18
- Hazardous operations 0130Z to 1130Z daily 14 thru 17 sep in area bound by 12-49.00N 080-46.00E, 12-49.00N…2026-09-10
- Hazardous operations 250830Z to 250930Z aug in area bound by 13-07.02N 080-18.01E, 13-14.90N 080-25.98E,…2026-08-24
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
- Buoy established in 14-05.21N 080-28.50ENav aids · 25.5 nm
Worldwide in the collected sources
9 military exercises listed in force · see all
Record snapshot 2026-10-04 05:09Z; 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.