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 1492/08 · Exercises2008-09-15 → 2008-09-24Hazardous operations 0600Z to 1400Z daily 19 and 22 thru 24 sep in area bound by 55-37N 020-46E, 55-34N…
- HYDROLANT 1410/08 · Exercises2008-09-03 → 2008-09-09Hazardous operations 0600Z to 1400Z daily 08 and 09 sep in area bound by 55-37N 020-46E, 55-34N 021-00E,…
- HYDROLANT 1305/08 · Exercises2008-08-08 → 2008-08-22Hazardous operations 0600Z to 1500Z daily 14 and 18 thru 22 aug in area bound by 55-37N 020-46E, 55-34N…
- HYDROLANT 1275/08 · Exercises2008-08-04 → 2008-08-06Hazardous operations 060600Z to 061500Z aug in area bound by 55-37N 020-46E, 55-34N 021-00E, 55-25N 021-00E,…
- HYDROLANT 1220/08 · Restricted2008-07-23 → 2008-12-09Nga chart 44430(2ND ed)
- HYDROLANT 1183/08 · Exercises2008-07-16 → 2008-07-29Hazardous operations 0600Z to 1500Z daily 21, 22 and 29 jul in area bound by 55-37N 020-46E, 55-34N 021-00E,…
- HYDROLANT 1152/08 · Exercises2008-07-10 → 2008-07-18Hazardous operations 0600Z to 1500Z daily 15 thru 18 jul in area bound by 55-37N 020-46E, 55-34N 021-00E,…
- HYDROLANT 1054/08 · Exercises2008-06-27 → 2008-07-03Hazardous operations 0600Z to 1500Z daily 02 and 03 jul in area bound by 55-37N 020-46E, 55-34N 021-00E,…
- HYDROLANT 1015/08 · Exercises2008-06-21 → 2008-06-28Hazardous operations 0600Z to 1500Z daily 26 thru 28 jun in area bound by 55-37N 020-46E, 55-34N 021-00E,…
- HYDROLANT 939/08 · Exercises2008-06-05 → 2008-06-12Hazardous operations 0600Z to 1500Z daily 10 thru 12 jun in area bound by 55-37N 020-46E, 55-34N 021-00E,…
- HYDROLANT 863/08 · Exercises2008-05-21 → 2008-05-30Hazardous operations 0600Z to 1500Z daily 26 thru 30 may in area bound by 55-37N 020-46E, 55-34N 021-00E,…
- HYDROLANT 806/08 · Exercises2008-05-12 → 2008-05-16Hazardous operations 0600 to 1500Z daily 15 and 16 may in area bound by 55-37N 020-46E, 55-34N 021-00E,…
- HYDROLANT 737/08 · Ordnance2008-04-30 → 2008-05-15Ordnance clearing operations 060001Z to 142359Z may in areas bound by: a. 55-56N 021-04E, 55-22N 020-46E,…
- HYDROLANT 703/08 · Exercises2008-04-24 → 2008-04-30Gunnery exercises 0600Z to 1500Z daily 29 and 30 apr in area bound by 55-37N 020-46E, 55-34N 021-00E, 55-25N…
- HYDROLANT 610/08 · Exercises2008-04-11 → 2008-04-25Hazardous operations 0600Z to 1500Z daily 21 thru 25 apr in area bound by 55-37N 020-46E, 55-34N 021-00E,…
- HYDROLANT 548/08 · Exercises2008-04-02 → 2008-04-11Hazardous operations 0600Z to 1600Z daily 07 thru 11 apr in area bound by 55-37.0N 020-45.9E, 55-35.5N…
- HYDROLANT 508/08 · Other2008-03-26 → 2008-04-04Hazaerdous operations 0600Z to 1600Z daily 31 mar thru 04 apr in area bound by 55-37.0N 020-45.9E, 55-35.5N…
- HYDROLANT 482/08 · Exercises2008-03-21 → 2008-03-28Hazardous operations 0600Z to 1500Z daily 26 thru 28 mar in area bound by 55-37.0N 020-46.0E, 55-34.0N…
- HYDROLANT 393/08 · Exercises2008-03-04 → 2008-03-07Hazardous operations 0600Z to 1500Z daily 05 thru 07 mar in area bound by 55-37N 020-46E, 55-34N 021-00E,…
- HYDROLANT 357/08 · Exercises2008-02-25 → 2008-02-28Hazardous operations 0600Z to 1500Z daily 26 thru 28 feb in area bound by 55-37.0N 020-46.0E, 55-34.0N…
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.