# Mediterranean episode and flooding in the South-East and Corsica > Starting from November 1, 2026, Keraunos forecasts thunderstorms along the Mediterranean coast, followed by a Mediterranean episode with heavy rain expected in the south-east until Thursday, locally up to 250 mm. Météo-France places several departments under yellow alert for thunderstorms and rain-flooding on November 4, while access to the Col de la Bonette is closed in the Alpes-Maritimes. Torrential rains hit the South-East and Corsica, causing flooding in Porto-Vecchio where 30 people were evacuated and 10 houses flooded. The two Corsican departments are then placed under orange alert for rain-flooding starting Thursday morning for a new episode, with Haute-Corse, Hérault, and Gard under yellow alert for floods. **In brief**: Ongoing story bringing together 13 events in 9 departments (Bouches-du-Rhône, Gard, Hérault and 6 more), followed from 1 November 2026 to 4 November 2026. 47 articles from 17 sources (weather, disaster); last updated on 4 November 2026 at 18:28. - Status: ongoing - Category: Weather, Disaster - Place: Bouches-du-Rhône, Gard, Hérault, Corse-du-Sud, Haute-Corse, Var, Alpes-Maritimes, Alpes-de-Haute-Provence, Aude - First detected: 1 November 2026 at 11:04 - Updated: 4 November 2026 at 18:28 - Web page: https://acturadar.com/en/stories/290-mediterranean-episode-and-flooding-in-the-south-east-and-corsica ## Background _Context and reference points, separate from the story’s news; every item links to its source._ **Reference points** - The October 2015 floods in the Alpes-Maritimes were caused by heavy rainfall during the night of October 3-4, 2015, with exceptional floods affecting notably Cannes, Antibes, Vallauris, Biot, and Mandelieu-la-Napoule. An analysis by the University of Nice concluded that the recurrence of such events is inevitable. ([Wikipédia](https://fr.wikipedia.org/wiki/Inondations_d%27octobre_2015_dans_les_Alpes-Maritimes)) - On October 29, 2026, an order published in the Official Journal recognized the state of natural disaster for 34 municipalities in Haute-Corse, a week after severe weather struck the Plaine orientale. ([Acturadar archives, 2026](https://acturadar.com/en/stories/154.md)) **Key terms** - **Weather vigilance**: Météo-France's weather vigilance is a national procedure to inform the public, government authorities, civil security services, and health authorities about dangerous weather phenomena forecast by Météo-France. It draws everyone's attention to potential dangers at the departmental level due to a specific meteorological situation and informs about possible consequences and specific precautions to best protect oneself. ([Wikipédia](https://fr.wikipedia.org/wiki/Vigilance_m%C3%A9t%C3%A9orologique_de_M%C3%A9t%C3%A9o-France)) - **Mediterranean episode**: In meteorology, a Mediterranean episode is the concomitance of intense thunderstorms and strong convective water sheets (heavy accumulations). Such episodes occur around the Mediterranean Sea and can cause sudden local floods. ([Wikipédia](https://fr.wikipedia.org/wiki/%C3%89pisode_m%C3%A9diterran%C3%A9en)) - **Rain-flooding**: A flood is the temporary submersion, natural or artificial, of an area by liquid water. This term is frequently used to describe very significant runoff of pluvial origin, either on cultivated land (muddy flooding) or in impermeable urbanized zones. ([Wikipédia](https://fr.wikipedia.org/wiki/Inondation)) **What happens next?** _What usually happens in this kind of situation, without prejudging the outcome._ 1. As a rule, following such events, affected municipalities may be subject to a procedure for recognizing the state of natural disaster, published by order in the Official Journal. ([Acturadar archives, 2026](https://acturadar.com/en/stories/154.md)) **Useful resources** - [Indemnisation après une catastrophe naturelle](https://www.service-public.gouv.fr/particuliers/vosdroits/F3076) — service-public.fr: Declaration deadlines to insurers and conditions for coverage. - [Géorisques](https://www.georisques.gouv.fr/) — georisques.gouv.fr: Known natural and technological risks near an address. - [Numéros d'urgence](https://www.service-public.gouv.fr/particuliers/vosdroits/F33954) — 17 · 15 · 18 · 112: Police-rescue, Samu, firefighters, and the European emergency number. ## Timeline (13 events) ### 1 November 2026 — [Six departments threatened by storms Tuesday, particularly on the Mediterranean coast](https://acturadar.com/en/events/6285-six-departments-threatened-by-storms-tuesday-particularly-on-the-mediterranean.md) According to forecasts from the Keraunos observatory, six departments could be hit by storms Tuesday, particularly on the Mediterranean coast. 1 sources, 1 articles · Not located ### 2 November 2026 — [Storms expected Wednesday in the southeast: nine departments affected](https://acturadar.com/en/events/6956-storms-expected-wednesday-in-the-southeast-nine-departments-affected.md) According to Keraunos, nine departments in the southeast of the country will be hit by storms this Wednesday, November 4, despite the return of cold weather. 1 sources, 1 articles · Not located ### 2 November 2026 — [Mediterranean episode expected in southeastern France](https://acturadar.com/en/events/7272-mediterranean-episode-expected-in-southeastern-france.md) Heavy rain is expected in the southeast starting from Tuesday night into Wednesday and continuing until Thursday, with up to 250 mm locally. 9 sources, 12 articles · Sud-est de la France — Hérault, Bouches-du-Rhône, Gard, Aude ### 3 November 2026 — [Storms expected Thursday in the southeast and the southwestern quarter](https://acturadar.com/en/events/8735-storms-expected-thursday-in-the-southeast-and-the-southwestern-quarter.md) Significant storms are forecast for Thursday, November 5, in the Mediterranean regions and inland areas of the country's southwestern quarter, according to Keraunos. 1 sources, 1 articles · Nationwide ### 3 November 2026 — [Temperatures below normal and stormy rains expected, especially on the Mediterranean coast](https://acturadar.com/en/events/8294-temperatures-below-normal-and-stormy-rains-expected-especially-on-the.md) Stormy precipitation is expected Wednesday 5 and Thursday 6 November, particularly on the Mediterranean coast, with temperatures persistently below seasonal norms across most of the country. 3 sources, 3 articles · Nationwide ### 3 November 2026 — [Six departments on yellow thunderstorm alert Wednesday, November 4](https://acturadar.com/en/events/8892-six-departments-on-yellow-thunderstorm-alert-wednesday-november-4.md) Météo-France places six departments in southern France on yellow alert for thunderstorms for Wednesday, November 4. 4 sources, 5 articles · Var ### 3 November 2026 — [Five departments on yellow alert for rain and flooding this Wednesday](https://acturadar.com/en/events/8465-five-departments-on-yellow-alert-for-rain-and-flooding-this-wednesday.md) Météo-France has placed five departments, including Bouches-du-Rhône, on yellow alert for rain and flooding for this Wednesday, November 4. 2 sources, 3 articles · Alpes-Maritimes — Bouches-du-Rhône, Alpes-Maritimes ### 4 November 2026 — [Pluies torrentielles dans le Sud-Est et en Corse : la question de la prévisibilité](https://acturadar.com/en/events/8822-pluies-torrentielles-dans-le-sud-est-et-en-corse-la-question-de-la-previsibilite.md) Après les pluies intenses dans le Sud-Est et en Corse, des scientifiques s'interrogent sur la capacité à prévoir ces événements extrêmes. 1 sources, 1 articles · Corse-du-Sud, Haute-Corse, Bouches-du-Rhône, Var, Gard, Hérault ### 4 November 2026 — [Weather in Corsica: stormy rain on the east and center of the island](https://acturadar.com/en/events/8900-weather-in-corsica-stormy-rain-on-the-east-and-center-of-the-island.md) Rain rising from the Mediterranean is temporarily heavy and stormy on the east and center of Corsica, with gusts of east wind. 1 sources, 2 articles · Corse — Corse-du-Sud, Haute-Corse ### 4 November 2026 — [Alpes-Maritimes : vigilance jaune et fermeture du col de la Bonette](https://acturadar.com/en/events/9083-alpes-maritimes-vigilance-jaune-et-fermeture-du-col-de-la-bonette.md) Les Alpes-Maritimes sont placées en vigilance jaune ce mercredi 4 novembre en raison de mauvaises conditions météo. L'accès au col de la Bonette, reliant les Alpes-Maritimes aux Alpes-de-Haute-Provence, est fermé pour une durée indéterminée. 1 sources, 1 articles · Col de la Bonette — Alpes-Maritimes, Alpes-de-Haute-Provence ### 4 November 2026 — [Nouvel épisode méditerranéen : la Corse en vigilance orange pluie-inondation](https://acturadar.com/en/events/9413-nouvel-episode-mediterraneen-la-corse-en-vigilance-orange-pluie-inondation.md) Météo France place les deux départements corses en vigilance orange pluie-inondation à partir de jeudi matin en raison d'un nouvel épisode méditerranéen, avec des cumuls importants attendus. 11 sources, 14 articles · Corse — Corse-du-Sud, Haute-Corse, Bouches-du-Rhône, Var, Gard, Hérault ### 4 November 2026 — [Trois départements en vigilance jaune crues jeudi 5 novembre](https://acturadar.com/en/events/9542-trois-departements-en-vigilance-jaune-crues-jeudi-5-novembre.md) Météo-France place la Haute-Corse, l'Hérault et le Gard en vigilance jaune pour risques de crues le jeudi 5 novembre, dans le cadre du nouvel épisode méditerranéen. 1 sources, 2 articles · Haute-Corse, Hérault, Gard ### 4 November 2026 — [Inondations à Porto-Vecchio : 30 personnes mises en sécurité](https://acturadar.com/en/events/9630-inondations-a-porto-vecchio-30-personnes-mises-en-securite.md) De fortes pluies ont provoqué des inondations au lieu-dit Precojo à Porto-Vecchio, en Corse-du-Sud. Cinq interventions mobilisant 25 sapeurs-pompiers sont en cours, 30 personnes ont été mises en sécurité et 10 maisons inondées. 1 sources, 1 articles · Porto-Vecchio — Corse-du-Sud --- Cite as: Acturadar, “Mediterranean episode and flooding in the South-East and Corsica”, https://acturadar.com/en/stories/290-mediterranean-episode-and-flooding-in-the-south-east-and-corsica Methodology: https://acturadar.com/en/methodology