The spring truce, with mild, sunny weather and mild temperatures, that we have enjoyed in recent days will give way to a radical change of time. And it is that the weather instability will be the protagonist again the next few days. Especially, from Monday, with the appearance of a DANA (acronyms corresponding to isolated depression at high levels) that will bring intense and widespread rains throughout Catalonia and a drop in temperatures.
But already this weekend we will begin to notice that change of time with the first localized rains on Saturday and Sunday afternoon in the northern half of Catalonia, especially on the coast of the province of Girona and in the Pyrenees and Pre-Pyrenees.
Widespread rains and falling temperatures
It will already be Monday when the rains sweep across Catalonia, said rainfall They may be abundant and even locally strong, and the temperatures show a general dropboth the maximum and the minimum, remaining between two or three degrees below the average for these dates.
This episode of meteorological instability and intense rains will continue, at least, until Wednesday. As of Thursday, a slow improvement in the weather situation is expected, the rains will begin to subside, although they will continue to be present, giving way to cloudy skies and where temperatures will begin to recover.
What is a DANA
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The DANA, also known as cold drop, is an atmospheric phenomenon that consists of the formation of closed depressions, defined and persistent with cold air, separated or detached from the source zone from which they originated. Its genesis occurs when the general current from the west undulates sharply until it becomes strangled and forms a closed circulation. DANA may not be a necessary or sufficient condition to produce heavy rains.
Other factors that favor it triggering a storm are that it encounters a current of warm and humid Mediterranean air provided by a weak depression on the surface and a mountainous geographical setting that facilitates convection.