Severe Flood Warnings and Storm Nils Pose Risks Across France

Twelve western and southwestern French departments face flood alerts as storm Nils brings severe winds and travel disruptions to southern France this week.

    Key details

  • • Twelve departments in west and southwest France under orange flood vigilance due to ongoing heavy rain.
  • • Significant river overflows expected, with localized flooding already occurring.
  • • City of Niort enacts preventive measures anticipating Sèvre River flooding.
  • • Storm Nils to impact southern France with gusts over 130 km/h, causing travel disruptions.
  • • Orange alert issued for storm, with continued monitoring by authorities.

On February 10, 2026, French authorities issued urgent weather warnings as persistent heavy rains and a powerful storm threaten multiple regions. The weather service Météo-France placed twelve departments, predominantly in the west and southwest, under orange flood vigilance due to ongoing rain starting late Monday night. Departments affected include Morbihan, Loire-Atlantique, Maine-et-Loire, Vendée, Deux-Sèvres, Vienne, Charente, Charente-Maritime, Dordogne, Cantal, Haute-Garonne, and Ariège. Vigicrues forecasts significant river overflows, especially along the Blavet, Sèvre Nantaise, Lay, Arize-Lèze, Seugne, Charente, and Vézère rivers, with flooding already localized in many areas. These conditions could lead to travel difficulties and power outages.

The city of Niort is proactively preparing for potential Sèvre River flooding, anticipating river flows reaching 120 cubic meters per second with overflows at 125 m3/s. Preventive measures include closures of several streets and parking areas, deployment of barriers and signage, and urging residents to avoid parking near waterways to minimize risks.

Meanwhile, storm Nils, energized by a powerful jet stream and forming over the Atlantic, is predicted to sweep across southern France between Wednesday and Thursday. Wind gusts exceeding 130 km/h are expected along the Aquitaine coast, with waves reaching up to 9 meters offshore. Inland, wind speeds of 100-110 km/h south of the Garonne will intensify by Thursday morning with tramontane gusts potentially surpassing 150 km/h in regions including the Cévennes, southern Languedoc, and Roussillon. Travel disruptions are anticipated, especially for trains and flights, due to risks of fallen trees and strong winds. An orange alert for the storm has been issued, and authorities continue to monitor the situation closely.

The combination of sustained heavy rains leading to flooding and the arrival of storm Nils poses a serious challenge for several French regions. Residents are advised to stay informed through official alerts and adhere to safety recommendations to mitigate risks from both flooding and powerful storm winds.

This article was translated and synthesized from French sources, providing English-speaking readers with local perspectives.

Source comparison

Number of departments under flood vigilance

Sources report different numbers of departments under flood vigilance

lemonde.fr

"Météo-France placed ten departments in the west of France and two in the southwest under flood vigilance."

actualite.lachainemeteo.com

"The storm is expected to impact twelve departments."

Why this matters: One source states that ten departments are under flood vigilance, while another mentions twelve. This discrepancy is significant as it affects the understanding of the extent of the flood warning.

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