The weather for extended weekend Ascension has two aspects. On the battery side, for the days of this Thursday and Friday with strong, even very strong heat. Face side, storms will concern a large part of the country on Saturday and Sunday. The air of oceanic provenance will collide with that clearly warmer which originates in southern Europe and North Africa.
Météo France thus warns this Thursday, as part of its forecasting of dangerous phenomenaagainst the bad weather that will touch the country during the weekend. “Strong” and “violent” thunderstorms are likely to occur.
The meteorological organization warns that a “stormy degradation takes place from the Massif Central towards the northeast quarter” on Saturday. “Thunderstorms mainly concern the relief, but can win the plain, especially between the Paris basin and the borders of the North”. They then risk being “stronger” than in the mountains, “with hail”. They could then constitute “a dangerous phenomenon”. This card shows the probability that the phenomenon will occur. It increases by going to Hauts-de-France.
Keraunosthe French observatory of tornadoes and violent thunderstorms, specifies that the heat accumulated in the previous days will play a role. “The strong intake of humidity and heat in the low layers will accentuate instability. »»
On Sunday, thunderstorms should shift a little east of the country. Météo France anticipates “more organized” thunderstorm cells than the day before. From southwest to northeast, “sometimes violent thunderstorms will occur”. Keraunos considers that the energy intake will be “upward -oriented” compared to Saturday.
While on Friday of temperatures very much above seasonal normal are expected in a large part of the country, with possible heat records in the South West for a late May, the stormy sequence will drop the thermometer. The maximums will lose a dozen degrees, locally a little more between Friday and Sunday. They will then regain their seasonal level.
