Storm Deborah: Strong Wind, Snow… Here are the 67 Departments Placed on Alert this Wednesday

The wind will strengthen significantly from the northwest of France and sweep through many regions this Wednesday 25th March 2026.

The sun and the great mildness, it’s over. Temperatures will drop from this Wednesday 25th March 2025 and the feeling will be wintery due to the wind, which will pick up, in many regions, in particular related to Storm Deborah.

In its 6 am bulletin this Wednesday 25th March, Météo France placed 67 departments on yellow alert. These are mainly risks of strong wind, but also for snow-ice, avalanches and even thunderstorms in this looming conflict of air masses. The weather organization warns of significant snowfall at low altitude on the reliefs in the Northern Alps from Wednesday evening.

The departments placed on yellow alert for this Wednesday 25th March 2026:

Ain : wind, snow-ice
Aisne : wind, storms
Allier : wind, snow-ice
Hautes-alpes wind
Ardennes : wind, storms
Dawn : wind, storms
Aveyron wind
Calvados : wind, storms
Cantal : snow-ice
Dear : wind, storms
Corrèze : snow-ice
South Corsica wind
Upper Corsica wind
Gold Coast : wind, storms
Côtes d’Armor wind
Hollow : snow-ice
Doubs : wind, thunderstorms, snow-ice
Eure : wind, storms
Eure-et-loir : wind, storms
Finistère wind
Ille-et-Vilaine wind
Indre wind
Indre-et-loire wind
Isère : wind, snow-ice, avalanches
Swore : wind, thunderstorms, snow-ice
Loir-et-Cher wind
Loire : wind, snow-ice
Haute-loire : snow-ice
Loire-atlantique wind
Loiret : wind, storms
Maine-et-Loire wind
Sleeve : wind, storms
Marne : wind, storms
Haute-marne : wind, storms
Mayenne wind
Meurthe-et-Moselle : wind, storms
Meuse : wind, storms
Morbihan wind
Moselle : wind, storms
Nièvre : wind, storms
North : wind, storms
Oise : wind, storms
Orne : wind, storms
Pas-de-calais : wind, storms
Puy-de-dôme : snow-ice
Pyrénées-orientales wind
Bas-rhin : wind, storms
Haut-rhin : wind, storms
Rhône : wind, snow-ice
Haute-saône : wind, storms
Saône-et-loire : wind, storms
Sarthe wind
Savoy : wind, snow-ice, avalanches
Haute-savoie : wind, snow-ice, avalanches
Paris : wind, storms
Seine-maritime : wind, storms
Seine-et-marne : wind, storms
Yvelines : wind, storms
Sum : wind, storms
Vosges : wind, storms
Yonne : wind, storms
Terr. of Belfort : wind, storms
Essonne : wind, storms
Hauts-de-Seine : wind, storms
Seine-st-denis : wind, storms
Val-de-marne : wind, storms
Val-d’oise : wind, storms
Andorra wind

Since the night of Tuesday March 24 to Wednesday March 25, a disturbance has crossed the country from the northwest to the southeast. It is accompanied by rain, but especially wind, with gusts that can locally reach 110 km/h on the Channel coast, according to models weather. And up to 70 to 90 km/h over a good northern half of the country under showers.

Cold air, polar maritime, will invade France

And, on the evening of this Wednesday 25th March, the mistral, the tramontane and the libeccio (in Corsica) will also rise, for several days, “with possible gusts of up to 130 km/h locally”, according to meteorologist Yann Amice. Related to Storm Deborah.

A disturbance will cross the country from the northwest to the southeast during the day this Wednesday. It will be accompanied by widespread rain and a sustained wind. And on Wednesday evening, the tramontane and the libeccio will also strengthen.
Météo France

Reduction of the rain-snow limit

“With the arrival of maritime polar air”, explains Yann Amice, temperatures will drop, especially in the northern half initially. If the minimums will remain close to normal, the maximums will become significantly cooler from this Wednesday. And the mercury will drop even more at the end of the week with morning frosts over a large eastern half and a risk of snow at low altitude and locally in the plains in the east. And sleet in the plains.

The rain-snow limit could drop to 400 meters on the massifs during the day of Thursday 26th March and notable snow accumulations are anticipated in the Alps. The wind will calm down in the north, but the mistral and the tramontane will still be strong on Friday 27th March in the south, but also in the following days. Winter is making a notable comeback.