From Wednesday, the conditions will gradually change with an upper flow that will return to the southwest bringing a more stable air mass.
No more thunderstorms, return to calm, sunny or just cloudy weather in the plains and on the coast.
However, Wednesday afternoon, small thunderstorms will be confined to the relief. The heat of the plain will rise on the sides of the mountain and will add to the heat of the slopes exposed to the sun.
This warm air will then meet the colder air from above. From this “shock” encounter, large cumulus clouds will develop until they become cumulonimbus clouds, storm clouds.
In Bordeaux, the threshold temperatures for the month of June are 14.6°C in the morning and 25°C in the afternoon.
So, Wednesday afternoon, no drop in mercury, on the contrary! Temperatures will rise again! The highs will be 6 to 7 degrees above seasonal averages.
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