Baltic Sea
IHO sea area 1 · 10° to 24° E, 53° to 60° N
- in force
- 0
- last 12 months
- 1
- archive messages
- 365
- categories
- 13
What the archive shows
365 messages are recorded since 1999-12-03 for the Baltic Sea. The selection uses the IHO sea area; a message may describe an exercise, equipment outage or continuing operation as well as a hazard report.
Exercises accounts for 314 of 365 recorded messages (86%), the largest category group in this selection.
The NGA historical archive froze in 2024-05; live collection began 2026-08-17. Counts around that gap are incomplete, and changes in reporting volume do not establish changes in incident frequency.
In force now · 0
Nothing in force in this sea right now.
By year
By month (all years)
By category · available archive
| Exercises | 314 | 86% |
| Surveys | 10 | 3% |
| Wrecks | 9 | 2% |
| Nav aids | 6 | 2% |
| Cable ops | 6 | 2% |
| Ordnance | 6 | 2% |
| Debris | 3 | 1% |
| Other | 3 | 1% |
| Derelicts | 3 | 1% |
| Restricted | 2 | 1% |
| Containers | 1 | 0% |
| Incidents | 1 | 0% |
| Towing | 1 | 0% |
Archive · 365 cancelled
- HYDROLANT 1339/10 · Exercises2010-07-15 → 2010-07-16Hazardous operations
- HYDROLANT 1309/10 · Exercises2010-07-10 → 2010-07-15Hazardous operations
- HYDROLANT 1162/10 · Exercises2010-06-23 → 2010-06-30Hazardous operations
- HYDROLANT 970/10 · Exercises2010-05-28 → 2010-06-04Hazardous operations
- HYDROLANT 840/10 · Exercises2010-05-12 → 2010-05-18Hazardous operations
- HYDROLANT 653/10 · Exercises2010-04-15 → 2010-04-22Hazardous operations
- HYDROLANT 573/10 · Exercises2010-04-02 → 2010-04-09Hazardous operations
- HYDROLANT 524/10 · Exercises2010-03-26 → 2010-04-15Hazardous operations
- HYDROLANT 518/10 · Exercises2010-03-25 → 2010-03-31Hazardous operations
- HYDROLANT 465/10 · Exercises2010-03-18 → 2010-03-24Hazardous operations
- HYDROLANT 356/10 · Exercises2010-02-25 → 2010-03-04Hazardous operations
- HYDROLANT 90/10 · Exercises2010-01-15 → 2010-01-21Hazardous operations
- HYDROLANT 2363/09 · Surveys2009-12-04 → 2009-12-12Underwater operations 08 thru 11 dec by M/V suduvis in area bound by 55-43.69N 021-04.60E, 55-43.81N…
- HYDROLANT 2221/09 · Exercises2009-11-16 → 2009-11-19Hazardous operations 0700Z to 1700Z daily 18 and 19 nov in area bound by 55-37N 020-46E, 55-34N 021-00E,…
- HYDROLANT 2157/09 · Exercises2009-11-06 → 2009-11-12Hazardous operations 0700Z to 1700Z daily 11 and 12 nov in area bound by 55-37N 020-46E, 55-34N 021-00E,…
- HYDROLANT 1900/09 · Exercises2009-10-02 → 2009-10-09Hazardous operations 0700Z to 1700Z daily 06 thru 09 oct in area bound by 55-37.00N 020-45.89E, 55-35.50N…
- HYDROLANT 1781/09 · Exercises2009-09-18 → 2009-09-25Hazardous operations 0600Z to 1400Z daily 23 thru 25 sep in area bound by 55-37N 020-46E, 55-34N 021-00E,…
- HYDROLANT 1733/09 · Exercises2009-09-11 → 2009-09-17Hazardous operations 0600Z to 1400Z daily 16 and 17 sep in area bound by 55-37N 020-46E, 55-34N 021-00E,…
- HYDROLANT 1702/09 · Surveys2009-09-08 → 2009-09-14Survey operations by M/V suduvis: a. in progress until 11 sep in area bound by 56-00.00N 020-40.00E,…
- HYDROLANT 1680/09 · Exercises2009-09-04 → 2009-09-09Hazardous operations 0600Z to 1400Z daily 08 and 09 sep in area bound by 55-37N 020-46E, 55-34N 021-00E,…
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.