After initially placing 52 departments on orange alert for strong winds and snow, in connection with the Caetano depression, for this Thursday, November 21, 2024, Météo France finally increased the number of departments concerned to 54 this Thursday morning in its 6 a.m. bulletin .
The departments of Haute-Corse and Corse-du-Sud join 19 other departments on orange alert for violent winds. Vendée, Loire-Atlantique, Morbihan and Finistère are affected by this level of vigilance in the West.
READ ALSO: Snow and ice: several centimeters expected over a large part of northern France this Thursday
33 departments on orange alert for snow
While snow accumulations of up to 10 cm inland are expected to fall over a large part of northern France, Météo France has also placed 33 departments on orange alert for snow.
“The perimeter of orange vigilance may further evolve slightly over the coming hours. Whether for risk snow
or the risk vent
certain departments concerned at the margins could see their level of vigilance worsened,” notes Météo France in its latest bulletin.
Storm Caetano will cross France from west to east
this Thursday and generate a major air mass conflict
continues the forecaster. Snowfall down to the plains is forecast until the evening of Thursday, between northern Brittany/Normandy, Centre-Val-de-Loire, Île-de-France, Burgundy, Franche-Comté and Alsace
.
We often expect 5 to 10 cm in the plains, locally up to 20 cm from the first heights between Normandy, Center, Burgundy and southern Alsace.
specifies Météo France, which adds that in Île-de-France too, 1 to 5cm
snow in general is expected, and 5 to 10 cm in the south of the region
.
During the night from Thursday to Friday, further snow showers could occur in the departments near the Manche.
21 departments in orange for violent winds
The wind will also mark this day on Thursday, from the morning on the Atlantic coast
before progressing quickly towards the east of the country on a Poitou-Charentes/Northern Alps axis
.
On this episode, we expect bursts generally reaching 110 to 120 km/h on the coast of the departments placed on orange alert, up to 130 to 140 km/h in the south of Brittany, and occasionally a little more on the exposed islands and capes
indicates Météo France.
Inland, gusts are generally around or exceed 100 km/h in the departments on orange alert.
In Corsica, the westerly wind will strengthen again in the evening, this episode of wind will be briefer and less strong than the previous one. but it could still cause damage with gusts of around 100 to 130 km/h, and even 160 to 180 km/h on Cap Corse
.