Hazardous operations
Ionian Sea · HYDROLANT 1507/10
What this record establishes
Archived notice · 2010-08-08 05:11Z
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 III 261/10 071942Z AUG 10.. Issued 2010-08-08 02:52Z. 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
- Ionian Sea. The parsed report position is 37.500, 17.100 with a 25.0 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
- Cape naval weather facsimile off airlater cancellation notice
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2010-08-08 00:01Z | 2010-08-31 23:59Z | — | 575 h 58 |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2010-08-08 02:52Z
- status
- Archived notice
- self-cancels
- 2010-09-01 00:59Z
- authority
- NAVAREA III 261/10 071942Z AUG 10.
- NAVAREA
- NAVAREA III · named as the source of this relay
- sea
- Ionian Sea
- position
- 37.500, 17.100 · r 25.0 nm
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
IONIAN SEA. HAZARDOUS OPERATIONS. 1. HAZARDOUS OPERATIONS 080001Z TO 312359Z AUG WITHIN 25 MILES OF 37-30N 017-06E. 2. CANCEL THIS MSG 010059Z SEP.
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.
- 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.
- 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
288 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 260400Z feb to 101800Z mar in area bound by 37-00.00N 011-00.00E, 39-00.00N 011-00.00E,…2023-02-20
- Hazardous operations 0800Z to 1630Z daily until 31 dec except sundays in area bound by 35-55.54N 014-28.32E,…2021-06-18
- Hazardous operations 220400Z feb to 081200Z mar in area bound by 36-00N 015-00E, 37-50N 015-00E, 37-50N…2021-02-21
- Hazardous operations 160001Z feb to 082259Z mar in areas bound by: a. 36-00N 015-00E 37-50N 015-00E, 37-50N…2021-02-14
- Hazardous operations 211400Z to 220400Z jan in area bound by 35-00N 015-40E, 37-30N 015-40E, 37-30N 017-40E,…2021-01-21
- Hazardous operations 210600Z to 230400Z jan in area bound by 36-00N 015-00E, 38-00N 016-45E, 38-00N 018-00E,…2021-01-20
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
Worldwide in the collected sources
9 military exercises listed in force · see all
Record snapshot 2026-10-03 00:08Z; 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.