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The malignant high pressure will be eliminated, now in northern Europe for several weeks.
This high pressure is responsible for the hot and dry weather over Italy in this early fall phase. In fact, from that position it unblocked the arrival of the cool and rainy Atlantic disturbances that already in early autumn descend to mid-latitudes. Consequently, the prevailing serenity of the sky, the additional warming by “sinking” typical of anticyclones and the still almost summer intensity of the solar radiation, have favored temperatures above 30 ° C throughout Italy, except in the coastal areas.
Thermal collapse on the weekend of September 26-27?
In Centronord the maximum temperatures will begin to drop from Monday, September 21, to fall below 28 degrees on Wednesday, September 23 and then from Saturday 26 even between 20 and 25 degrees.
In the south, however, after an initial decline, a 2-day hot flash could occur between Thursday the 24th and Friday the 25th.
But then, between September 25 and 26, both the US GFS and the European ECMWF models experience a thermal collapse of up to 10 degrees.
Rain is also abundant in most of the Centronord
Once the anticyclone is removed, the disturbances will have the way paved to also enter the western Mediterranean from the south of France, thus activating cool and rainy winds of Libeccio especially in the regions of the Tyrrhenian, the Levant of Liguria, the regions of the Northeast and the central-eastern Pre-Alps. But about the rain forecast for next week, see today’s ad hoc article.
Snow up to 1300-1500 m in the Alps
The burst of cooler air from the polar circle could also bring the first snowfalls in the Alps at altitudes below 1,500 m.
Article source: Colonel Mario Giuliacci
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