The calm before the storm ? This is what could sum up the next two days in Brittany. This Tuesday, a wave of mildness, quite unusual for the season, will offer temperatures close to July: 20 ° C in Brest, 21 ° C in Lorient and Vannes, 23 ° C in Saint-Brieuc and even 24 ° C at Dinan, values well above the normal for the season according to the forecasts of Brittany weather.
This softness is the consequence of the arrival of a mass of air from the tropics, which takes its source “at the level of the Lesser Antilles”, as a meteorologist from Météo-France explains on Twitter.
Another fine example of an atmospheric river. Air from the tropics, particularly humid, is about to approach Brittany. We can guess a source in the Lesser Antilles. #RhumExpress pic.twitter.com/UKxq15KlI5
– Francois Jobard (@Francois_Jobard) October 18, 2021
But the improvement will be short-lived. A gust of wind is expected from Wednesday over Brittany, “With gusts that will flirt with 100 km / h, or even a little more on the capes, the islands and the Gulf of Saint-Malo. Inland, the wind will be vigorous but the gusts should not exceed 70 to 80 km / h ”, warns Brittany weather.
It would be the second gale of the season after that of October 2, day during which the four Breton departments had been placed in orange vigilance by Météo-France.