After the snow and the ice, Brittany will have to face the rain. Météo-France has indeed planned for this Sunday a return of rain from the west, with orange vigilance for rain-flooding in Finistère.
From the start of the day in Brittany, then to the Pays de Loire, the north of Poitou-Charentes and Lower Normandy in the morning, an active disturbance will set in. It will bring regular and sometimes marked rains, but it will arrive on still frozen ground, which may become slippery temporarily, before a gradual mild spell.
Risks of ice on floors that have remained cold
In the afternoon, the rains will extend to Normandy, the Centre-Val-de-Loire, the Paris region and the Hauts de France. There too, the rains will be accompanied at the beginning by a localized and temporary risk of slippery phenomena on soils that have remained cold. In the evening, this disturbed weather will reach Champagne-Ardenne and Lorraine.
On the west of the Breton peninsula, the rains will be lasting, sustained, and will give good accumulations in particular on Finistère. In addition, the southerly wind will strengthen from the morning on Brittany then the regions close to the Channel, with gusts up to 70 to 90 km / h on the coasts, 60 to 80 km / h inland. Over the Mediterranean regions to the south of the Massif Central, there too the clouds will be back, pushed by the sea wind, with a little rain over Languedoc-Roussillon and the Cévennes.
Elsewhere, except in the plain of Alsace, from the Lorraine plateau to the Val de Saône as well as in the Garonne valley to Poitou-Charentes where the freezing fog will persist for a good part of the morning, the weather will be dry under a sky more more veiled. The autan wind will pick up in the morning, it will reach 60 to 80 km/h towards the Lauragais, while the southerly wind over the west of the Pyrenees will reach 80 to 90 km/h over the Basque Country. On the Massif Central and Lyonnais, the south-east to south wind will strengthen in the afternoon.
Temperatures still negative
Except on the extreme south-west and on the Mediterranean beaches, the morning frosts will still be widespread and severe, with -8 to -3 degrees in general over a good northern half, locally -12 to -7 degrees over the fourth northeast to the Massif Central, -3 to +2 degrees to the south and along the ocean, 5 to 10 on the Mediterranean shores.
Temperatures will then rise quite significantly in the West, with highs of 8 to 13 degrees, but this thaw will be much later in the center and the east with temperatures still low in the afternoon and maximum values reached in the evening. In the evening we will thus have 5 to 8 degrees on the rest of the northern half, but 0 to 4 degrees in Alsace, 10 to 14 degrees in the South, even 16 at the foot of the Pyrenees.