3534/2026

Minehunting operations by sonar-tow vessel off Goulet de Brest, 5-9 Oct

No longer in forceReceived 30 Sept 2026, 11:22 UTCArchived 09 Oct 2026, 15:09 UTC

Warning text

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Area: IROISE Locality: AVANT GOULET DE BREST, GOULET DE BREST Valid from 05 Oct 2026 07:00 UTC to 09 Oct 2026 14:00 UTC MILITARY_OPERATION OPERATIONS BY SONAR TOWING VESSEL ALDEBARAN, MARINERS ARE REQUESTED TO: - NOT HAMPER THE MANOEUVRING OF THE SONAR TOWING VESSEL, - NOT ENTER WITHIN A 300M RADIUS CIRCLE AROUND THE VESSEL ENGAGED IN MINEHUNTING OPERATIONS, - NOT DEPLOY FISHING GEAR IN THE OPERATING AREA. VHF watch 10/16 Area bounded by: 48-21.39N 004-31.50W 48-20.90N 004-31.30W 48-20.28N 004-33.89W 48-19.29N 004-35.65W 48-17.70N 004-36.35W 48-16.30N 004-46.50W 48-18.17N 004-46.41W 48-18.88N 004-40.86W 48-20.83N 004-34.15W

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Analysis

No longer in force

A sonar-tow vessel ALDEBARAN will carry out minehunting operations in the approaches to the Goulet de Brest (Iroise). Mariners must not hinder the vessel, must not enter within 300 m of the vessel while it is operating, and must not deploy fishing gear in the area. Maintain VHF watch on channels 10 and 16. The area is bounded by the listed coordinates.

Do not hinder the manoeuvre of the sonar-tow vessel; do not enter within 300 m of the vessel while it is engaged in minehunting; do not deploy fishing gear in the area; keep watch on VHF channels 10 and 16.

Type: Military exercise · severity high
Feed: Military exercises and firingAll warnings of this kind on the map, or as an API feed.
Location: Avant Goulet de Brest, Goulet de Brest, Iroise
Validity: From 05 Oct 2026, 07:00 UTC
Until 09 Oct 2026, 14:00 UTCValid from 05 Oct 2026 07:00 UTC to 09 Oct 2026 14:00 UTC
Activity periods: 05 Oct 2026, 07:00 UTC - 09 Oct 2026, 14:00 UTC (Operations by sonar-tow vessel ALDEBARAN (minehunting))
Hazards: minehunting operations, sonar-tow vessel, restricted operating area
Keep clear: 0.162 NMNE PAS PENETRER DANS UN CERCLE DE RAYON DE 300M AUTOUR DU BATIMENT EN OPERATION DE CHASSE AUX MINES

Contacts

VHF 10 · watch channel
VHF 16 · distress/calling and watch channel

Vessels involved

ALDEBARAN · sonar-tow / minehunting vessel

Coast stations for this area

RCCMRCC EtelFranceMMSI 00227500068 NM from the area
RCCMRSC BrixhamUnited KingdomMMSI 002320013128 NM from the area
RCCMRCC JobourgFrance131 NM from the area
DSCDSC Station CorsenMRCC CorsenFranceMMSI 002275300VHF 27, MF 140range 140 NM11 NM from the area
DSCDSC Station Pointe du RazMRCC CorsenFranceMMSI 002275300VHF 24range 24 NM21 NM from the area
DSCDSC Station Stiff OuessantMRCC CorsenFranceMMSI 002275300VHF 33, MF 140range 140 NM22 NM from the area
DSCDSC Station Batz IslandMRCC CorsenFranceMMSI 002275300VHF 27range 27 NM31 NM from the area
DSCDSC Station Pen MarchMRCC EtelFranceMMSI 002275000VHF 28range 28 NM34 NM from the area

Worked out automatically from the warning text on 09 Oct 2026, 14:18 UTC. It can be wrong: the official warning text is the authority.

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