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 2906/17 · Exercises2017-09-19 → 2017-09-20Hazardous operations 200700Z to 201300Z sep in area bound by 55-37N 020-46E, 55-34N 021-00E, 55-25N 021-00E,…
- HYDROLANT 2700/17 · Exercises2017-09-04 → 2017-09-07Hazardous operations 071000Z to 071300Z sep in area bound by 55-37.0N 020-46.0E, 55-34.0N 021-00.0E,…
- HYDROLANT 2408/17 · Exercises2017-08-04 → 2017-08-10Hazardous operations 071900Z to 102100Z aug in area bound by 55-37N 020-46E, 55-34N 021-00E, 55-25N 021-00E,…
- HYDROLANT 2262/17 · Exercises2017-07-21 → 2017-07-27Hazardous operations 250900Z to 270900Z jul in area bound by 55-36.59N 020-45.53E, 55-38.08N 021-09.00E,…
- HYDROLANT 1965/17 · Exercises2017-06-26 → 2017-06-29Hazardous operations 290700Z to 291200Z jun in area bound by 55-37N 020-46E, 55-34N 021-00E, 55-25N 021-00E,…
- HYDROLANT 1525/17 · Exercises2017-05-15 → 2017-05-17Hazardous operations 170500Z to 170900Z may in area bound by 55-37N 020-46E, 55-34N 021-00E, 55-25N 021-00E,…
- HYDROLANT 1341/17 · Exercises2017-04-28 → 2017-05-05Hazardous operations 0500Z to 1800Z daily 02 thru 05 may in area bound by 55-37N 020-46E, 55-34N 021-00E,…
- HYDROLANT 1190/17 · Exercises2017-04-14 → 2017-04-18Hazardous operations 180900Z to 181300Z apr in area bound by 55-37N 020-46E, 55-34N 021-00E, 55-25N 021-00E,…
- HYDROLANT 1150/17 · Exercises2017-04-10 → 2017-04-12Hazardous operations 120900Z to 121300Z apr in area bound by 55-37N 020-46E, 55-34N 021-00E, 55-25N 021-00E,…
- HYDROLANT 1043/17 · Exercises2017-03-31 → 2017-04-03Hazardous operations 031000Z to 031300Z apr in area bound by 55-37N 020-46E, 55-34N 021-00E, 55-25N 021-00E,…
- HYDROLANT 905/17 · Exercises2017-03-20 → 2017-03-23Gunnery exercises 231300Z to 231500Z mar in area bound by 55-37N 020-46E, 55-34N 021-00E, 55-25N 021-00E,…
- HYDROLANT 812/17 · Exercises2017-03-13 → 2017-03-16Hazardous operations 161100Z to 161300Z in area bound by 55-37N 020-46E, 55-34N 021-00E, 55-25N 021-00E,…
- HYDROLANT 700/17 · Exercises2017-03-03 → 2017-03-07Lithuania DNC 22
- HYDROLANT 652/17 · Exercises2017-02-27 → 2017-03-02Hazardous operations 0800Z to 1400Z daily 01 and 02 mar in area bound by 55-37N 020-46E, 55-34N 021-00E,…
- HYDROLANT 464/17 · Exercises2017-02-10 → 2017-02-14Hazardous operations 140800Z to 141400Z feb in area bound by 55-37N 020-46E, 55-34N 021-00E, 55-25N 021-00E,…
- HYDROLANT 406/17 · Exercises2017-02-06 → 2017-02-09Hazardous operations 090800Z to 091200Z feb in area bound by 55-37N 020-46E, 55-34N 021-00E, 55-25N 021-00E,…
- HYDROLANT 237/17 · Exercises2017-01-23 → 2017-01-25Hazardous operations
- HYDROLANT 204/17 · Exercises2017-01-20 → 2017-01-23Hazardous operations
- HYDROLANT 86/17 · Exercises2017-01-09 → 2017-01-12Hazardous operations
- HYDROLANT 3242/16 · Exercises2016-12-02 → 2016-12-06Hazardous operations
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.