1234/2026

Scientific buoy probes off Flamanville (Casquets), 15 Apr to 01 Dec 2026

Activeuntil 01 Dec 2026, 00:00 UTC (in 16 days)Received 27 Apr 2026, 08:43 UTC

Warning text

Positions open on the map

Lang

Area: CASQUETS Locality: FLAMANVILLE Valid from 15 Apr 2026 22:00 UTC to 01 Dec 2026 00:00 UTC SCIENTIFIC_BUOY_APPARATUS Marine scientific research, sea temperature measurements off Flamanville power plant probe 1 49-32.25N 001-53.50W probe 2 49-32.27N 001-53.36W probe 3 49-32.56N 001-53.51W probe 4 49-32.54N 001-53.64W probe 5 49-32.57N 001-53.99W Navigate with caution

Location map

Open on the full map

Analysis

Activeuntil 01 Dec 2026, 00:00 UTC (in 16 days)

Marine scientific research deploying fixed probes for sea temperature measurements off the Flamanville power plant (Casquets). Five probe positions are listed. Activity is valid from 15 Apr 2026 22:00 UTC until 01 Dec 2026 00:00 UTC. Mariners are advised to navigate with caution in the vicinity of the probes.

Type: Survey operations · severity moderate
Feed: Survey operationsAll warnings of this kind on the map, or as an API feed.
Location: Casquets, off Flamanville
Validity: From 15 Apr 2026, 22:00 UTC
Until 01 Dec 2026, 00:00 UTCValid from 15 Apr 2026 22:00 UTC to 01 Dec 2026 00:00 UTC
Activity periods: 15 Apr 2026, 22:00 UTC - 01 Dec 2026, 00:00 UTC (Scientific buoy/probe deployment period)
Hazards: scientific buoy apparatus, moored probes

Worked out automatically from the warning text on 08 Nov 2026, 15:28 UTC. It can be wrong: the official warning text is the authority.

The whole analysis comes with Lagom

This warning's analysis also has:

Action for mariners
Translations
Nearby lights and rescue centres

The action for mariners, the keep-clear distance, contacts, ships named, translations and the nearby lights and rescue centres come with Lagom and every higher plan, and with the API plans. The official warning text above is always free.

See the plans

Back to France - AVURNAV LOCAL CHERBOURG