why the fog doesn't clear

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A real pea puree! For several days, the sky has been “covered” over the Loire-Atlantique. Even on the coast, the fog does not dissipate during the day.

A cloud that touches the ground

This Tuesday, November 5, 2024, the old port of Pornic is still in the mist at 10:30 a.m., just like the beach of Saint-Brevin-les-Pins…

It must be said that with a almost no windthe mist has a hard time dissipating with these anticyclonic conditions.

Météo France, which announces the presence of this cloud until Wednesday, November 6, 2024 in the morning, recalls in a video on Youtube what fog is, “a cloud whose base touches the ground and which reduces visibility to less of a kilometer. And sometimes only a few dozen meters…

The low temperature and a high humidityas well as the presence of suspended particles solids or liquids in the atmosphere (condensation nuclei) promote this phenomenon. Water droplets attach to these particles and condense, accumulating to form fog.

Safety instructions on the roads

The Loire-Atlantique firefighters, for their part, remind us of the safety instructions: to slow down to better anticipate dangers and remain attentive to gyrophares and emergency signals.

Road Safety recommends postponing your departure in the event of fog, especially when traveling in open countryside, also due to the risk of unpleasant surprises along the way, such as wild boars.

It also invites you to reduce your speed depending on the lack of visibility and to use your front fog lightsin addition to the low beam headlights.

The rear fog lights are very dazzling. Use them only in fog or snowfall, but never in the rain.

Be careful at sea too

Furthermore, in Saint-Nazaire for example, a number of ships using the estuary make abundant use, day and night, of their fog horn to avoid collisions at sea.

The sun and clearings should return to Loire-Atlantique from this Thursday, November 7, 2024, with temperatures of 10 to 16°C in Pornic and Nantes.

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