Xynthia (storm)

Cyclone Xynthia was an exceptionally violent European windstorm which crossed Western Europe between 27 February and 1 March 2010. It reached a minimum pressure of on 27 February. In France—where it was described by the civil defence as the most violent since Lothar and Martin in December 1999—at least 51 people were killed, with 12 more said to be missing. A further six people were killed in Germany, three in Spain, one in Portugal, one in Belgium and another one in England. Most of the deaths in France occurred when a powerful storm surge topped by battering waves up to high, hitting at high tide, smashed through the sea wall off the coastal town of L'Aiguillon-sur-Mer.Staff (1 March 2010
"Weak sea walls blamed for France storm disaster "
''BBC News'' A mobile home park built close to the sea wall was particularly hard-hit. The sea wall was about two hundred years old, built in the time of Napoleon; critics said that situating a mobile home park so close to the sea wall showed poor coastal development practices. The storm cut power to over a million homes in France and a million customers in Portugal lost power.

Effects

One million homes were left without power in western France. In the Hautes-Pyrénées, falling trees damaged vehicles, the roofs of houses and barns were blown away, and rocks were falling onto the road. In the département of Vendée, cities like La Faute-sur-Mer, L'Aiguillon-sur-Mer, La Tranche-sur-Mer were flooded with water levels reaching up to . Flooding affected parts of the Charente-Maritime département (Suburbs of La Rochelle, cities of Fouras, Marennes, Châtelaillon as well as Ré and Oléron Island) where high speed wind were registered ().

Flooded railway tracks led to railway delays in France and the rail services in northern Spain were also severely affected. 70 flights from Paris-Charles de Gaulle Airport were cancelled by Air France.

The storm also caused damage in Portugal and Spain. The strongest wind gust recorded in Portugal was while in Spain a gust of was recorded. In France a wind gust was recorded at the Pic du Midi.

The storm may have been exacerbated by the spread of volcanic ash from the Soufrière Hills volcano. A cloud of ash from the volcano was dragged over the United Kingdom, forming a visible haze to the north-west of Xynthia on visible satellite imagery.

On March 11, 2010, catastrophe risk modeling firm EQECAT estimated wind losses for affected countries excluding Portugal and Spain as follows: Mean damage: €1.3 billion (approximately US$1.8 billion); Mean insured gross loss: €994 million (approximately US$1.4 billion). One year after the event, the insurance industry loss aggregator PERILS AG published its final loss estimate for Xynthia of €1.32bn, excluding the French indemnified losses.

Response

Météo-France issued its second highest warning (orange) for 27 February and early 28 February for Andorra, Ain, Ariège, Cantal, Finistère, Haute-Garonne, Gironde, Isère, Haute-Loire and Hautes-Pyrénées. It issued its highest warning level (red) for the Charente-Maritime, Vendée, Deux-Sèvres and Vienne

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