3 degrees, freezing fog… Yellow “ice” alert in Yvelines, be careful on the road

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The year 2025 is off to a cold start. And the frost. From midnight, this Friday January 3, the Yvelines department will be placed in yellow warning for snow and ice. The alert lasts until 10 a.m. What are Météo France’s forecasts? We take stock.

Negative temperatures set in on the evening of Thursday January 2

Despite rather reasonable temperatures in the afternoon of Thursday January 2 (between 5 and 7 degrees), the bitter cold will gradually set in in the evening. Some municipalities will lose up to eight degrees in a few hours. In Bonnières-sur-Seine, Mantes-la-Jolie, Septeuil or even Montfort-l’Amaury, he will do so 0 °C.

In Saint-Germain-en-Laye, Élancourt, Houdan and Saint-Arnoult-en-Yvelines, temperatures will drop to -1°C. In Rambouillet and Versailles, peaks has – 2 °C are expected.

Freezing fog on the morning of Friday, January 3

On the morning of Friday January 3, 2025, the cold will persist. Temperatures will not exceed 0°C across the entire department and will even fall up to -3°C in the Houdan sectorwhere a Freezing fog is forecast. Vigilance will be required, particularly on the roads. There is a high risk of icy conditions.

Météo France predicts an identical phenomenon in Saint-Arnoult-en-Yvelines and its surroundings. The sky should clear from the beginning of the afternoon with temperatures rising to between 3 and 5°C.

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