0991/26
Underwater operations in Aegean Sea (local area) 8-14 Oct 2026
No longer in forceReceived 07 Oct 2026, 00:00 UTCArchived 14 Oct 2026, 21:22 UTC
Warning text
Positions open on the mapSEYHİDDA NAVIGATIONAL WARNING NO : 0991/26
AEGEAN SEA
1. UNDERWATER OPERATIONS, BETWEEN 08 – 14 OCT 26 IN THE FOLLOWING AREA:
38 31.90 N - 026 20.40 E
38 30.90 N - 026 20.40 E
38 30.90 N - 026 21.25 E
38 31.90 N - 026 21.25 E
WIDE BERTH REQUESTED FROM WORK VESSEL.
2. THIS WARNING WILL BE CANCELLED ON 14 OCT 26 AT 2059Z.
Location map
Open in the full mapAnalysis
No longer in forceUnderwater operations will take place in a small area of the Aegean Sea between 08 and 14 October 2026. The area is defined by four positions listed in the message. Vessels are requested to give a wide berth to the work vessel. The warning will be cancelled at 14 Oct 2026 2059Z.
Give a wide berth to the work vessel and navigate with caution in the area.
- Type
- Survey operations · severity moderate
- Feed
- Survey operationsAll warnings of this kind on the map, or as an API feed.
- Location
- Aegean Sea (area defined by listed positions)
- Validity
- From 08 Oct 2026, 00:00 UTC
Until 14 Oct 2026, 20:59 UTC08 - 14 EKI 26 / THIS WARNING WILL BE CANCELLED ON 14 EKI 26 SAAT 2059Z - Activity periods
- 08 Oct 2026, 00:00 UTC - 14 Oct 2026, 20:59 UTC (Underwater operations 08 - 14 Oct 2026)
- Hazards
- underwater operations, work vessel
Vessels involved
- Unnamed · work vessel
Coast stations for this area
- RCCJRCC PiraeusGreece131 NM from the area
- RCCMRCC VarnaBulgaria289 NM from the area
- RCCMSRCC AnkaraTurkey314 NM from the area
- DSCDSC Station IzmirMSRCC AnkaraTurkeyMMSI 002715000MF16 NM from the area
- DSCDSC Station KhiosJRCC PiraeusGreeceMMSI 002371000VHF 78range 78 NM16 NM from the area
- DSCDSC Station MytiliniJRCC PiraeusGreeceMMSI 002371000VHF 84range 84 NM32 NM from the area
- DSCDSC Station AyvalikMSRCC AnkaraTurkeyMMSI 002711000VHF49 NM from the area
- DSCDSC Station DilektepeMSRCC AnkaraTurkeyMMSI 002713000VHF74 NM from the area
Worked out automatically from the warning text on 07 Oct 2026, 12:47 UTC. It can be wrong: the official warning text is the authority.