Of
Saturday January 4 at 6:00 p.m. au
Sunday January 5 at 3:00
Situation
Within a conflict of air masses, an episode of snow/ice is expected north of the Seine with the arrival of a disturbance on still cold ground. The highest risk period extends from Saturday 8 p.m. to Sunday 3 a.m.
A depression which rises from the Bay of Biscay towards the British Isles causes a rise of fresh oceanic air in a southwesterly flow. Colliding with the cold air still present in the north on Saturday evening, mild snow or freezing rain will temporarily set in north of the Seine until the night from Saturday to Sunday.
The mild weather then invades the entire territory by Sunday morning, putting an end to this brief winter episode.
Observation
The event has not yet started.
Evolution
Saturday afternoon
The rainy front associated with the mild spell moves back towards the central regions. With positive temperatures, the risk of slippery phenomena remains very low.
Saturday evening
The front collides with the cold air still present north of the Seine and freezing rain sets in with the roads becoming slippery. Ahead, light mild snow is possible in the far north.
Night from Saturday to Sunday
The disturbance reaches Belgium and all the north-eastern borders with icy conditions possible until 2-3 a.m., particularly in Hauts-de-France. Then, the mild spell affects all regions and this special press release will then be lifted.
France
