The Pyrénées-Atlantiques and Corsica were placed on orange alert for the night of Monday November 21 to Tuesday due to the passage of a rainy episode on the Atlantic coast and a “autumn storm” on the island of Beauty, announced Météo-France.
The Pyrénées-Atlantiques are on orange rain-flood vigilance while Corsica is on orange vigilance for high winds.
The showers which have already started in the Pyrénées-Atlantiques should continue until late Tuesday morning according to Météo-France with accumulations of up to “from 60 to 80 mm” and “locally 90 mm” (90 liters of water per square meter), with snow above 1200 m altitude.
Since mid-morning on Monday, “20 to 35mm” of precipitation fell on the northern half of the department and “10 to 20 mm on the relief of the Pyrenees as well as the Basque mountain” and showers are expected to continue.
This Monday at the end of the afternoon the showers must continue “over a large part of the department” and should take “locally a stormy character” while gaining intensity at the start of the night.
Winds blowing between 100 and 110 km/h
The risk of flooding is increased by a “pretty strong swell expected for tonight” which could limit the flow of water into the ocean on the Basque coast.
In Corsica, “The Denise depression is strengthening in the Mediterranean with a northwesterly wind which becomes strong to violent from Tuesday morning”specifies Météo-France.
Tuesday morning, a westerly wind blowing between 80 and 100 km/h is expected over the whole island before strengthening over a large part of the island, blowing between 100 and 110 km/h and “locally 120 to 140 km/h on the most exposed capes and passes”.
These strong winds, which could cause power cuts or falling roofs or tree branches, should slowly weaken Tuesday evening.