Overview
- Finistère, Côtes-d’Armor and Manche were under orange wave‑submersion alert for Saturday morning high tides, which was lifted by late morning.
- The event stems from depression Davide northwest of Ireland, where long‑period swell combined with storm surge and very high tide coefficients of 98 and 97 heightened overflow risk.
- Observed impacts included multi‑meter waves up to 6 meters in places, dune erosion reported in the Manche, gusts near 100 km/h and suspended island crossings around Brest.
- Maritime authorities issued a gale advisory of force 7–8 on Friday–Saturday followed by force 6–7 expected from Sunday night into Monday and urged the public to follow coastal safety guidance and call 196 for sea emergencies.
- Fourteen northwest and Atlantic departments remain under yellow coastal flooding vigilance into Saturday evening, and officials warn coastal paths and exposed zones still pose hazards.