Floods, Haute-Savoie and 2 other départements, April 2015
77 communes under a natural disaster declaration (flood)
251 protected animal species recorded in the declared communes in the ten years before the flood
35 animal species threatened on the national Red List, protected or not
birds: by their population in the flood's season
- Dates per the orders
- 26 April to 5 May 2015
- Départements
- Haute-Savoie, Savoie and Isère
- Flood type
- river flooding, runoff or mudflow
- Heaviest rainfall
- 140.2 mm
- in one day (Haute-Savoie, 1 May 2015), GETS (LES) station · per Météo-France
- 26 April 2015: 0 mm
- 27 April 2015: 26.2 mm
- 28 April 2015: 0.2 mm
- 29 April 2015: 3.7 mm
- 30 April 2015: 51.4 mm
- 1 May 2015: 140.2 mm
- 2 May 2015: 41.6 mm
- 3 May 2015: 69.3 mm
- 4 May 2015: 6.9 mm
195.3 mm from 29 Apr to 1 May, up to the wettest day
The flood's dates
- Peak discharge
- 456 m³/s
- Le Giffre à Marignier, Plan séraphin, on 1 May 2015 · per Hub'Eau
- Extent
- communes under a natural disaster declaration (flood)
Protected species recorded in the declared communes
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.
4,940 species recorded in the declared communes
251 protected animal species among them and 47 protected plants
35 animal species threatened on the national Red List, protected or not (vulnerable, endangered or critically endangered)
171 Birds
38 Mammals, bats included
14 Insects
12 Reptiles
10 Amphibians
6 Fish, molluscs and crayfish
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 in the declared communes 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 in the declared communes 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. 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 "in the communes or nearby".
Birds
The observations cover every season: a migrant bird recorded there may have been away on the day of the flood.
Critically endangered, breeding birdsThree-Toed Woodpecker
Endangered, breeding birdsBearded Vulture
Endangered, breeding birdsEurasian Tree Sparrow
Vulnerable, breeding birdsEuropean Greenfinch
Vulnerable, breeding birdsEurasian Goldfinch
Vulnerable, breeding birdsEuropean Serin
Vulnerable, breeding birdsEurasian Bullfinch
Vulnerable, breeding birdsGolden Eagle
Vulnerable, breeding birdsYellowhammer
Vulnerable, breeding birdsCommon Linnet
Mammals, bats included
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 in the communes declared for this flood, taken whole, 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.
1 ICPE-classified livestock farm located in the declared communes
Géorisques · ICPE1,091 livestock businesses in the SIRENE register based in the declared communes
SIRENE register · Insee87 veterinary practices based in the declared communes
SIRENE register · Insee40 animal protection associations based in the declared communes
National register of associations20 wildlife associations based in the declared communes
National register of associations
Of the 1,091 livestock businesses in the SIRENE register: 710 cattle, sheep, goat or pig farms, 68 horse farms, 11 poultry farms and 302 farms of other animals.
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.
Protected areas in the declared communes
The sites the communes declared for this flood extend over, taken whole, dry sectors included. Natura 2000 and regulatory protection first, then the ZNIEFF, each by its area in these communes. These are not flooded areas: they are not given.
- Haut GiffreNatura 2000, Birds Directive
- Les AravisNatura 2000, Habitats and Birds Directives
- Partie orientale du Massif des BaugesNatura 2000, Habitats and Birds Directives
- Haut GiffreNatura 2000, Habitats Directive
- Massif du BargyNatura 2000, Habitats and Birds Directives
- Les Frettes - Massif des GlièresNatura 2000, Habitats and Birds Directives
- Roc d'EnferNatura 2000, Habitats and Birds Directives
- PassyNational nature reserve
- Cornettes de BiseNatura 2000, Habitats Directive
- Montagne de Bise Cornettes Chauffé ArvouinBiotope protection order
- Mont de GrangeBiotope protection order
- Massif de la TournetteNatura 2000, Habitats Directive
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.
The declared communes
77 communes declared a natural disaster (flood) for this flood, département by département.
Haute-SavoieSee the 63 communes
Abondance, Annecy, Arenthon, Arthaz-Pont-Notre-Dame, Boëge, Bonneville, Bons-en-Chablais, Champanges, Châtel, Chevenoz, Contamine-sur-Arve, Cordon, Cranves-Sales, Doussard, Draillant, Essert-Romand, Étrembières, Faverges-Seythenex, Féternes, Fillinges, Gaillard, Giez, Glières-Val-de-Borne, La Chapelle-d'Abondance, La Côte-d'Arbroz, La Rivière-Enverse, La Roche-sur-Foron, Le Biot, Le Bouchet-Mont-Charvin, Le Grand-Bornand, Le Reposoir, Les Clefs, Les Gets, Lucinges, Manigod, Marignier, Maxilly-sur-Léman, Megève, Mégevette, Mieussy, Mont-Saxonnex, Montriond, Morzine, Passy, Peillonnex, Perrignier, Praz-sur-Arly, Reignier-Ésery, Saint-Cergues, Saint-Gingolph, Saint-Jean-d'Aulps, Saint-Jean-de-Sixt, Saint-Jeoire, Saint-Paul-en-Chablais, Sallanches, Samoëns, Scionzier, Servoz, Taninges, Thônes, Vacheresse, Verchaix, Ville-en-Sallaz
SavoieSee the 13 communes
Cohennoz, Crest-Voland, Cruet, Flumet, Grignon, La Chavanne, La Giettaz, Notre-Dame-de-Bellecombe, Notre-Dame-des-Millières, Saint-Nicolas-la-Chapelle, Tournon, Ugine, Verrens-Arvey
IsèreSee the commune
La Tronche
Download this flood's data
In every file of the dataset, this flood carries the identifier EV-20150501-20150502-73. Its dates were frozen when the identifier was created and differ here from the flood's.
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