Hazardous operations occur daily from 0001Z to 1600Z August 1-31 except Fridays and Saturdays in four areas of the Bay of Bengal, Bangladesh.
Bay of Bengal · HYDROPAC 2187/26
What this record establishes
Cancelled notice · 2026-09-08 17:45Z
This notice disappeared from the issuing source's in-force list. No explicit recovery or all-clear is established by that removal.
- Source and dates
- NGA MSI in-force warnings (DailyMem*.txt). Issued 2026-07-31 11:11Z. First collected 2026-08-17 13:41Z; last seen in collection 2026-08-31 19:32Z. Collection dates record ingestion, not a new incident or a fresh field observation.
- Location covered
- Bay of Bengal. 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 Bay of Bengal →
Activity windows · 31 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2026-08-01 00:01Z | 2026-08-01 16:00Z | — | 15 h 59 |
| 2026-08-02 00:01Z | 2026-08-02 16:00Z | — | 15 h 59 |
| 2026-08-03 00:01Z | 2026-08-03 16:00Z | — | 15 h 59 |
| 2026-08-04 00:01Z | 2026-08-04 16:00Z | — | 15 h 59 |
| 2026-08-05 00:01Z | 2026-08-05 16:00Z | — | 15 h 59 |
| 2026-08-06 00:01Z | 2026-08-06 16:00Z | — | 15 h 59 |
| 2026-08-07 00:01Z | 2026-08-07 16:00Z | — | 15 h 59 |
| 2026-08-08 00:01Z | 2026-08-08 16:00Z | — | 15 h 59 |
| … 23 more | |||
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2026-07-31 11:11Z
- status
- Cancelled notice
- self-cancels
- 2026-08-31 17:00Z
- sea
- Bay of Bengal
- position
- 20.258, 91.424
- nearest port
- Chittagong · 106 nm
- source
- NGA MSI in-force warnings (DailyMem*.txt) · first seen 2026-08-17 13:41Z
Original warning text
BAY OF BENGAL.
BANGLADESH.
1. HAZARDOUS OPERATIONS 0001Z TO 1600Z DAILY
01 THRU 31 AUG EXCEPT FRIDAYS AND SATURDAYS
IN AREAS BOUND BY:
A. 21-20.83N 090-34.00E, 21-41.00N 091-14.00E,
21-20.83N 091-28.00E, 21-00.00N 090-47.83E.
B. 20-47.60N 091-29.80E, 20-24.00N 091-59.00E,
19-44.00N 091-21.00E, 20-07.00N 090-52.00E.
C. 21-18.00N 089-31.00E, 21-18.00N 089-50.00E,
21-04.00N 089-54.00E, 21-04.00N 089-34.00E.
D. 20-58.00N 089-34.00E, 20-58.00N 089-54.00E,
20-34.00N 089-54.00E, 20-34.00N 089-34.00E.
2. CANCEL THIS MSG 311700Z AUG 26.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.
- 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.
- 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
158 within 180 nm since 2003 · 6 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 0100Z to 1600Z daily 17 thru 26 sep in area bound by 22-23.30N 091-45.43E, 22-26.00N…2026-09-12
- Hazardous operations 0001Z to 1600Z daily 01 thru 30 sep except fridays and saturdays in areas bound by: a.…2026-08-31
- Hazardous operations 0001Z to 1600Z daily 01 thru 30 apr except fridays and saturdays2026-03-30
- Hazardous operations 0001Z to 1600Z daily 01 thru 31 jan 26 in areas bound by: a. 21-20.83N 091-28.00E,…2025-12-26
- Hazardous operations in progress 0200Z to 1100Z daily 02 thru 13 dec in area bound by 21-51.00N 091-23.00E,…2025-12-02
- Hazardous operations 110430Z to 111030Z feb in area bound by 20-37.00N 088-30.00E, 20-52.00N 088-30.00E,…2025-02-07
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
28 military exercises listed in force · see all
Record snapshot 2026-10-02 08:58Z; 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.