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
99
00
01
03
07
08
09
10
11
12
13
14
15
16
17
18
19
20
22
23
24
26
By month (all years)
J
F
M
A
M
J
J
A
S
O
N
D
By category · available archive
| Exercises | 314 | 86% |
| Surveys | 10 | 3% |
| Wrecks | 9 | 2% |
| Nav aids | 6 | 2% |
| Cable ops | 6 | 2% |
| Ordnance | 6 | 2% |
| Derelicts | 3 | 1% |
| Debris | 3 | 1% |
| Other | 3 | 1% |
| Restricted | 2 | 1% |
| Containers | 1 | 0% |
| Incidents | 1 | 0% |
| Towing | 1 | 0% |
Archive · 365 cancelled
- HYDROLANT 310/08 · Exercises2008-02-14 → 2008-02-22Hazardous operations 0600Z to 1500Z daily 19 thru 22 feb in area bound by 55-37.0N 020-46.0E, 55-34.0N…
- HYDROLANT 222/08 · Exercises2008-02-01 → 2008-02-07Hazardous operations 0600Z to 1500Z daily 06 and 07 feb in area bound by 55-37N 020-46E, 55-34N 021-00E,…
- HYDROLANT 167/08 · Exercises2008-01-23 → 2008-01-31Hazardous operations 0600Z to 1500Z daily 28 thru 31 jan in area bound by 55-37N 020-46E, 55-34N 021-00E,…
- HYDROLANT 93/08 · Exercises2008-01-11 → 2008-01-18Hazardous operations 0600Z to 1500Z daily 16 thru 18 jan in area bound by 55-37N 020-46E, 55-34N 021-00E,…
- HYDROLANT 2086/07 · Exercises2007-12-13 → 2007-12-22Hazardous operations 0800Z to 1500Z daily 17 thru 22 dec in area bound by 55-37N 020-46E, 55-34N 021-00E,…
- HYDROLANT 1980/07 · Exercises2007-11-29 → 2007-12-07Hazardous operations 0800Z to 1500Z daily 04 thru 07 dec in area bound by 55-37N 020-46E, 55-34N 021-00E,…
- HYDROLANT 1927/07 · Nav aids2007-11-21 → 2007-12-13Nga chart 44430 (2ND ed)
- HYDROLANT 1904/07 · Exercises2007-11-16 → 2007-11-22Hazardous operations 0600Z to 1500Z daily 21 and 22 nov in area bound by 55-37N 020-46E, 55-34N 021-00E,…
- HYDROLANT 1849/07 · Exercises2007-11-07 → 2007-11-15Hazardous operations 0600Z to 1500Z daily 12 thru 15 nov in area bound by 55-37N 020-46E, 55-34N 021-00E,…
- HYDROLANT 1812/07 · Exercises2007-11-01 → 2007-11-08Hazardous operations 0600Z to 1500Z daily 06 and 07 nov in area bound by 55-37N 020-46E, 55-34N 021-00E,…
- HYDROLANT 1749/07 · Exercises2007-10-19 → 2007-10-24Hazardous operations 0600Z to 1400Z daily 23 and 24 oct in area bound by 55-37N 020-46E, 55-34N 021-00E,…
- HYDROLANT 1717/07 · Exercises2007-10-10 → 2007-10-18Hazardous operations 0600Z to 1400Z daily 15 thru 18 oct in area bound by 55-37N 020-46E, 55-34N 021-00E,…
- HYDROLANT 1672/07 · Exercises2007-10-02 → 2007-10-10Hazardous operations 0600Z to 1400Z daily 09 and 10 oct in area bound by 55-37N 020-46E, 55-34N 021-00E,…
- HYDROLANT 1601/07 · Exercises2007-09-19 → 2007-09-28Hazardous operations 0800Z to 1400Z daily 24 thru 28 sep in area bound by 55-37N 020-46E, 55-34N 021-00E,…
- HYDROLANT 1596/07 · Exercises2007-09-17 → 2007-09-20Hazardous operations 200800Z to 201400Z sep in area bound by 55-37N 020-46E, 55-34N 021-00E, 55-25N 021-00E,…
- HYDROLANT 1547/07 · Ordnance2007-09-07 → 2007-09-08Underwater ordnance detonations 080500Z to 081200Z sep vicinity 55-51N 020-57E
- HYDROLANT 1492/07 · Other2007-08-28 → 2007-09-18Mine sweeping operations 012359Z to 180001Z sep a. in area bound by 55-26N 020-40E, 55-46N 020-40E, 55-46N…
- HYDROLANT 1461/07 · Exercises2007-08-23 → 2007-08-28Hazardous operations 280600Z to 281400Z aug in area bound by 55-37N 020-46E, 55-34N 021-00E, 55-25N 021-00E,…
- HYDROLANT 1432/07 · Exercises2007-08-17 → 2007-08-24Hazardous operations 0600Z to 1400Z daily 21 thru 24 aug in area bound by 55-37N 020-46E, 55-34N 021-00E,…
- HYDROLANT 1349/07 · Exercises2007-08-02 → 2007-08-07Hazardous operations 070800Z to 071400Z aug in area bound by 55-37N 020-46E, 55-34N 021-00E, 55-25N 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.