Aude floods (October 2018)
On 14 and 15 October 2018, the rivers of the Aude burst their banks. On the sectors mapped by Copernicus EMS, the water covered 1,565 hectares in Natura 2000 or under regulatory protection, including nearly half of the Natura 2000 site of the étang de Capestang and part of the basse plaine de l'Aude, a site designated for birds. 206 protected animal species had been recorded in this zone over the previous ten years, 166 of them birds. Among them is the little bustard, a bird of open plains, endangered on the Red List of breeding birds. The flood came in October, during migration, so the little bustard is not counted among its threatened species, like other migratory birds.
5,726 hectares of flooded area observed by Copernicus EMS over the mapped sectors
1,565 hectares in Natura 2000 or under regulatory protection
27% of the observed flooded area206 protected animal species recorded within reach in the ten years before the flood
13 animal species threatened on the national Red List, protected or not
birds: by their population in the flood's season
- Communes declared
- 271
- Dates per the orders
- 14 to 15 October 2018
- Départements
- Aude, Hérault, Tarn and Pyrénées-Orientales
- Flood type
- river flooding, runoff or mudflow
- Heaviest rainfall
- 300 mm
- in one day (Aude, 14 October 2018), CONQUES-SUR-ORBIEL station · per Météo-France
- 9 October 2018: 74.3 mm
- 10 October 2018: 0.5 mm
- 11 October 2018: 0 mm
- 12 October 2018: 1.8 mm
- 13 October 2018: 2.2 mm
- 14 October 2018: 300 mm
- 15 October 2018: 18.9 mm
- 16 October 2018: 3.5 mm
- 17 October 2018: 2 mm
304 mm from 12 to 14 Oct, up to the wettest day
The flood's dates
- Peak discharge
- 1,696 m³/s
- L'Aude à Saint-Marcel-sur-Aude, on 15 October 2018 · per Hub'Eau
- Extent
- flooded area observed by Copernicus EMS over the mapped sectors
- 5,726 ha
Protected species recorded within reach
Observations recorded in the ten years before the flood, some known only to within a few kilometres, up to 10 km, when their published position is blurred or given by grid square. They tell which species were reported there, not what became of each animal.
845 species recorded within reach
206 protected animal species among them and 5 protected plants
13 animal species threatened on the national Red List, protected or not (vulnerable, endangered or critically endangered)
166 Birds
12 Mammals, bats included
8 Amphibians
8 Reptiles
6 Fish, molluscs and crayfish
6 Insects
For birds, the category is the one of their population at the flood's season (breeding, wintering or passage birds): a bird with no dated record within reach in that season in the GBIF data has none, and the breeding category needs at least two dated records in June or July. In the migration season (March, August to October), a bird that neither the passage list nor the wintering list assesses takes its breeding category only if it was recorded at least twice within reach in June or July. The list used is named under each species.
The most notable protected animal species
Species with at least three observations (for a bird, three in the months that give it its category, and no bird without a record at the flood's season), the most threatened first, then the most recorded, and other protected species recorded within reach. An observation is a published record: it can count one or several animals, and the same animal can be noted several times. When their published position is imprecise, blurred or given by grid square, they are said to be "within reach or nearby".
Birds
The observations cover every season: a migrant bird recorded there may have been away on the day of the flood.
Endangered, breeding birdsSouthern Grey Shrike
Vulnerable, breeding birdsZitting Cisticola
Vulnerable, breeding birdsCommon Linnet
Vulnerable, breeding birdsEurasian Goldfinch
Vulnerable, breeding birdsCommon Kingfisher
Vulnerable, breeding birdsLesser Spotted Woodpecker
Cetti's Warbler
Common Kestrel
Eurasian Marsh Harrier
Little Bustard
Amphibians
Mammals, bats included
Fish, molluscs and crayfish
For fish, national protection (order of 8 December 1988) covers their eggs and spawning grounds: several are fished legally.
Photos: Wikimedia Commons, each under its own licence (CC BY, CC BY-SA, CC0, public domain). Credit for each photo
In the water's path
Establishments registered today within reach of the flood, at their declared address or at the point Géorisques gives. They were not necessarily there on the day of the flood, and the dataset does not say whether they were flooded. An ICPE-classified farm can also be in the SIRENE register: these counts do not add up.
No ICPE-classified livestock farm located within the flood's reach
Géorisques · ICPE1 livestock business in the SIRENE register based within the flood's reach
SIRENE register · InseeNo veterinary practice based within the flood's reach
SIRENE register · InseeNo animal protection association based within the flood's reach
National register of associationsNo wildlife association based within the flood's reach
National register of associations
The one livestock business in the SIRENE register: 1 horse farm.
A wildlife association is an association whose declared purpose in the national register of associations is the preservation of wildlife: the register does not say whether it runs an authorised care centre. Associations are counted at their declared address: an association or a care centre based outside the area can work across all of it.
Protected areas within reach
Area of each site within reach of the flood, and the share of the site it represents. Natura 2000 and regulatory protection first, then the ZNIEFF.
- Étang de CapestangNatura 2000, Birds Directive639 ha within reach46.6% of the site
- Basse plaine de l'AudeNatura 2000, Habitats and Birds Directives453 ha within reach10.1% of the site
- Étangs du NarbonnaisNatura 2000, Birds Directive391 ha within reach3.2% of the site
- Cours inférieur de l'AudeNatura 2000, Habitats Directive58 ha within reach1.1% of the site
- Complexe lagunaire de Bages-SigeanNatura 2000, Habitats Directive11 ha within reach0.1% of the site
- Côte languedocienneNatura 2000, Birds Directive8 ha within reachunder 0.1% of the site
- Côtes sableuses de l'infralittoral LanguedocienNatura 2000, Habitats Directive7 ha within reach0.1% of the site
- Massif de la ClapeNatura 2000, Habitats Directive6 ha within reach0.1% of the site
- Montagne de la ClapeNatura 2000, Birds Directive6 ha within reach0.1% of the site
- Collines d'Ensérune (ancien nom : Collines du Narbonnais)Natura 2000, Habitats Directive4 ha within reach0.2% of the site
- Basse Plaine de l'Aude et étang de CapestangZNIEFF type II (inventoried natural area)1,340 ha within reach18.8% of the site
- Complexe des étangs de Bages-SigeanZNIEFF type II (inventoried natural area)519 ha within reach4.0% of the site
A marsh can be designated twice under Natura 2000, for its habitats and for its birds: when both sites carry the same name, or have the same extent and almost the same area here, they share one row. Natura 2000 areas overlap and do not add up. A ZNIEFF is a wildlife inventory, with no regulatory protection.
The declared communes
271 communes declared a natural disaster (flood) for this flood, département by département.
AudeSee the 205 communes
Aigues-Vives, Alet-les-Bains, Alzonne, Antugnac, Aragon, Argens-Minervois, Armissan, Arquettes-en-Val, Auriac, Azille, Badens, Bagnoles, Barbaira, Berriac, Bizanet, Bize-Minervois, Blomac, Bouilhonnac, Bouisse, Boutenac, Brousses-et-Villaret, Bugarach, Cabrespine, Campagne-sur-Aude, Camps-sur-l'Agly, Canet, Capendu, Carcassonne, Cascastel-des-Corbières, Cassaignes, Castans, Castelnau-d'Aude, Caudebronde, Caunes-Minervois, Caunette-sur-Lauquet, Caunettes-en-Val, Caux-et-Sauzens, Cavanac, Cazilhac, Cépie, Citou, Clermont-sur-Lauquet, Comigne, Conilhac-Corbières, Conques-sur-Orbiel, Couffoulens, Couiza, Cournanel, Coursan, Coustaussa, Cucugnan, Cuxac-Cabardès, Cuxac-d'Aude, Davejean, Dernacueillette, Douzens, Durban-Corbières, Espéraza, Fabrezan, Fajac-en-Val, Félines-Termenès, Ferrals-les-Corbières, Fleury, Floure, Fontcouverte, Fontiers-Cabardès, Fontiès-d'Aude, Fournes-Cabardès, Fraisse-Cabardès, Gardie, Ginestas, Granès, Greffeil, Gruissan, Homps, Jonquières, La Redorte, La Serpent, La Tourette-Cabardès, Labastide-en-Val, Labastide-Esparbairenque, Lacombe, Ladern-sur-Lauquet, Lagrasse, Lairière, Lanet, Laprade, Laroque-de-Fa, Lastours, Laure-Minervois, Les Ilhes, Les Martys, Lespinassière, Leuc, Lézignan-Corbières, Limousis, Limoux, Luc-sur-Aude, Luc-sur-Orbieu, Maisons, Malves-en-Minervois, Marcorignan, Marseillette, Mas-Cabardès, Mas-des-Cours, Massac, Mayronnes, Miraval-Cabardès, Mirepeisset, Montazels, Montbrun-des-Corbières, Montgaillard, Montirat, Montjoi, Montolieu, Montredon-des-Corbières, Monze, Moussan, Moussoulens, Mouthoumet, Moux, Narbonne, Névian, Ornaisons, Ouveillan, Palaja, Paraza, Paziols, Pennautier, Pépieux, Peyriac-Minervois, Pezens, Pieusse, Pomas, Pradelles-Cabardès, Puichéric, Quillan, Quintillan, Raissac-d'Aude, Rennes-le-Château, Rennes-les-Bains, Ribaute, Rieux-en-Val, Rieux-Minervois, Roquecourbe-Minervois, Roquefère, Roubia, Rouffiac-d'Aude, Rouffiac-des-Corbières, Rustiques, Saint-Couat-d'Aude, Saint-Denis, Saint-Ferriol, Saint-Frichoux, Saint-Hilaire, Saint-Jean-de-Barrou, Saint-Julia-de-Bec, Saint-Just-et-le-Bézu, Saint-Laurent-de-la-Cabrerisse, Saint-Louis-et-Parahou, Saint-Marcel-sur-Aude, Saint-Martin-des-Puits, Saint-Martin-le-Vieil, Saint-Nazaire-d'Aude, Saint-Pierre-des-Champs, Saissac, Sallèles-Cabardès, Sallèles-d'Aude, Salles-d'Aude, Salsigne, Salza, Serres, Serviès-en-Val, Talairan, Taurize, Termes, Tournissan, Tourouzelle, Trassanel, Trausse, Trèbes, Tuchan, Val-de-Dagne, Val-du-Faby, Ventenac-Cabardès, Ventenac-en-Minervois, Verzeille, Vignevieille, Villalier, Villanière, Villar-en-Val, Villardebelle, Villardonnel, Villarzel-Cabardès, Villedaigne, Villedubert, Villefloure, Villegailhenc, Villegly, Villemoustaussou, Villeneuve-les-Corbières, Villeneuve-Minervois, Villerouge-Termenès, Villetritouls, Vinassan
HéraultSee the 36 communes
Agel, Assignan, Azillanet, Babeau-Bouldoux, Béziers, Cassagnoles, Cesseras, Courniou, Cruzy, Félines-Minervois, La Caunette, La Livinière, La Salvetat-sur-Agout, Le Soulié, Minerve, Mons, Montels, Nissan-lez-Enserune, Olargues, Olonzac, Pierrerue, Prades-sur-Vernazobre, Prémian, Puisserguier, Quarante, Riols, Roquebrun, Saint-Chinian, Saint-Étienne-d'Albagnan, Saint-Pons-de-Thomières, Saint-Vincent-d'Olargues, Siran, Vélieux, Verreries-de-Moussans, Vieussan, Villemagne-l'Argentière
TarnSee the 28 communes
Aiguefonde, Anglès, Aussillon, Burlats, Cambounet-sur-le-Sor, Castres, Dourgne, Fontrieu, Grazac, Labastide-Rouairoux, Lagardiolle, Lempaut, Lescout, Mazamet, Noailhac, Payrin-Augmontel, Pont-de-Larn, Saint-Amancet, Saint-Amans-Soult, Saint-Amans-Valtoret, Saint-Germain-des-Prés, Saint-Germier, Sémalens, Sorèze, Soual, Valdurenque, Verdalle, Viviers-lès-Montagnes
Pyrénées-OrientalesSee the 2 communes
Caudiès-de-Fenouillèdes, Tautavel
Download this flood's data
In every file of the dataset, this flood carries the identifier EV-20181014-20181015-11.
Recognised and listed

A project labelled by the French StateNational Resilience Day 2026 (Journée nationale de la résilience)
Registered with GBIFDerived dataset, DOI 10.15468/dd.ta4vkx


