Last days of September with autumn temperatures, strong winds and bad weather again on the way. In the last 10 days there have been two equinoctial storms, the first between 15 and 17 September, also associated with a very intense polar irruption, the second between last Saturday and Monday with subtropical warm air arriving from the Maghreb. In both cases the bad weather reminded us that, in the days around the equinox, very often exchanges of very different air masses take place. Everything arises from the different solar heating during the mid-seasons, with the consequent formation of polar and subtropical air masses with extremely distant connotations: just think that in Norway at the moment the maximum temperatures are around 7-8 ° C while in the North of ‘Africa sunny afternoons still record 35-40 ° C. The difference between cold Norway and sub-Sahara heat is responsible for meridian exchanges of air masses in the gradual attempt to compensate for the thermal imbalance: here is Italy, at the beginning of Autumn and Spring, it is in the midst of these equinoctial storms.Lorenzo Tedici, meteorologist of the site www.iLMeteo.it, confirms that between Thursday and Friday there will be a third equinoctial storm with the arrival of polar air , southbound. This cold mass, currently on the North Sea between England and Denmark, will quickly sink towards the Mediterranean reaching even Algeria and Morocco. We will experience a phase of intense bad weather. between Thursday and Friday with some disturbed ‘leftovers’ also on Saturday morning.In the meantime the next few hours will be characterized by a ‘windy’ wait: twenty theses of ‘Libeccio Freddo’ are expected, with gusts of gale between Sardinia, Sicily and the Tyrrhenian side . The Libeccio Freddo is the wind that blows from the South-West and has colder connotations when it is associated with the arrival of perturbations from Northern Europe. Here this cold libeccio will cause violent storm surges on the exposed coasts: waves up to 6 meters are expected on the Ligurian Sea! Even the Central Tyrrhenian Sea, towards Lazio, will present an intense storm with waves up to 4 meters, as it will happen on the coasts of the Strait of Bonifacio. of the Azores, but at the moment we also see a threat coming from the East: next week cold air from the Balkans could spoil the attempt of sunny and mild Ottobrata on the Adriatic side, it will be a tug of war between the Azores and the Balkans. FORECASTS IN DETAIL Wednesday 28. Al north: unstable over Friuli Venezia Giulia and Veneto. Center: worsens from the afternoon on Tirreniche and Sassari. In the south: showers on Campania and Tyrrhenian Calabria. Thursday 29. In the north: new disturbance with bad weather. Center: new disturbance with bad weather especially on the Tyrrhenian side. In the south: some showers on the Lower Tyrrhenian Sea, large spells elsewhere. Friday 30. In the north: bad weather. Middle: bad weather. In the south: sunny except for showers over Campania and locally towards Sicily. Gradual improvement on Saturday with the last strong thunderstorms in the South and part of the Center, mainly sunny on Sunday; possible descent of fresh air from the Balkans to the Adriatic regions in the new week.