All the Rhone Valley and the Côte d’Azur are placed on orange alert because of a strong weather phenomenon, which starts this Thursday 14th November. The forecasts
Snowfall, heavy rains, thunderstorms, strong winds and strong waves. The East and the South-East are going to be affected by a strong enough weather phenomenon as early as Thursday 14th November 2019 in the morning, warns Meteo France, and should last until Friday morning.
11 departments have been placed on orange alert:
- Snow-ice: the Saône-et-Loire, the Rhone, the Loire and the Ardeche.
- Strong precipitations and thunderstorms: the Vaucluse, the Bouches du Rhône, and the Var.
- Submersion waves: the Var and the Alpes-Maritimes.
🔶 11 dpts en #vigilanceOrange
Restez informés sur https://t.co/rJ24zzmmy4 pic.twitter.com/h7al70uLMC
— VigiMétéoFrance (@VigiMeteoFrance) November 14, 2019
Up to 30 cm of snow
On the areas concerned by the snow episode, Météo France is waiting, at low altitude, a layer of a few centimetres to 20cm. “On the first heights, from 300m the layer of snow can reach 20 to 30 cm, even locally more. ”
Demain à l’est du Rhône, dès la mi-journée, des pluies soutenues vont se changer rapidement en neige, tombant de plus en plus bas (dès 300 m voire en plaine). Les quantités prévues sont conséquentes, avec 20/30 cm dès 500 m notamment sur le nord-#Isère. #vigilanceOrange #neige pic.twitter.com/fK8f1tSlVX
— VigiMétéoFrance (@VigiMeteoFrance) November 13, 2019
Further south, heavy rains can reach 60 to 100 mm cumulative, in just a few hours and quite locally. “In the coastal edge of the fiercest storms can cause, in addition to high electrical activity and of intense rain, the hail to high winds or even vortex phenomena.”
Demain des Alpes aux Pyrénées en passant par le Massif Central la limite pluie/neige, initialement prévue aux alentours de 800m, pourrait s’abaisser plus bas en raison du phénomène d’isothermie. Pour en savoir plus sur ce phénomène : https://t.co/lMrrrxGN3u pic.twitter.com/vXMPvzWVi0
— La Chaîne Météo (@lachainemeteo) November 13, 2019
