CLASH OF THE TITANS OVER THE WEEKEND
Friends of RIWMAG and METEOEVENTI here we are again at the weekend preparations.
The week that is coming to an end has brought a lot of cold and also snow on many regions in particular in northern Italy. Let's see if the trend will still be the same or if the weekend will reserve us some surprises.
Saturday, the large area of low pressure that, currently, it extends from northern Europe reaching the North African coasts of Algeria and Tunisia, will continue to influence the weather on the Bel Paese, but it will begin to oppose a promontory of high pressure that, from the Atlantic, will push towards the westernmost regions of the Mediterranean. The minimum ground pressure will move towards the southern Italian regions, favoring a fall ventilation on the lakes and the Bora on the Adriatic.
On Sunday the northern European depression will give way just under the pressure of high pressure retreating towards the Baltic countries.
The baric clash between these two large-scale weather structures will greatly affect the weather on our coasts., giving windy days, thanks to the large pressure gradient that will dig to the ground. Sunday, In addition, we will see a general improvement in the weather throughout the peninsula.
Pressure (Geopotential Height Black isoline) temperature (in color) scheduled for the night between Saturday and Sunday. Highlighted the disturbance that also brought snow to northern Italy, but moving eastwards thanks to the advance of the Azores anticyclone. (source ECMWF www.ecmwf.int and elaborated by METEOEVENTI).
Let's take a closer look at the weekend.
north Tyrrhenian sector: waiting for the Tramontana between Savona and Genoa with average intensity on 15/18 nodes, in attenuation then during the afternoon. The spots of upper Tuscany will be affected by winds from the North on the 15/18 nodes, but they will be in attenuation already in the morning;
Adriatic sector: the Bora will blow on the Adriatic coasts. The wind from the North-East quadrants will affect the coasts of Trieste on the 20/22 nodes, heading towards the Emilian coasts and up to the Ancona area with a northerly direction and intensity up to 25 nodes. Right on the coasts of Ancona, However, the weather will be disturbed with rain.
About Great Lakes the foehn is expected. The falling wind from the Alps will blow strongly until 25/28 nodes between Maggiore and Como with North-Northwest direction and on the 18/20 nodes on Lake Garda with a north-east direction.
center Tyrrhenian side: wind from the North will blow on the Tuscan coasts, rotating from the North-West quadrants on the Lazio coasts. Expected intensity on 15 knots on Livorno, and up to 28/30 knots from Grosseto to the Lazio commercials;
Adriatic side: the Bora will blow from the North quadrants on the Marche and Abruzzo coasts with important intensities on the 25/28 nodes, but we will have disturbed weather from Ancona to the gates of Pescara.
south Adriatic side: such coasts will feel the effects of a southern flow. Therefore, expected winds from the South-Southwest with intensity from the 15 knots between Bari and Brindisi and up to 20/22 nodes towards the Otranto canal. The latter, However, will be affected by some disturbed weather with weak rain;
Ionic side: well ventilated for winds of Libeccio the Calabrian coasts from Reggio to Crotonese, where we will have intensity on 25 nodes. The Libeccio will also affect the Ionian coasts of Salento, but with intensity on 10/20 knots and with more disturbed weather. On the remaining Ionian coasts from Cosentino to Taranto, the Libeccio will blow, but with less constancy and with greater probability on the Gulf of Corigliano.
Tyrrhenian side: the Tyrrhenian coasts, albeit windy for Libeccio, will be affected by bad weather with rains for most of the day.
islands Sardinia: day marked by the Mistral. Northwest wind on the 25/28 knots on the southern and western Sardinian coasts, about 18/20 nodes north of the island and 22/25 nodes to the east. The wind is expected to subside during the day especially in the north;
Sicily: very windy day for winds from the West quadrants on average on the 28/30 nodes, but disturbed with rain, particularly in the north of the island.
north Tyrrhenian side: nothing to report;
Adriatic side: the Bora withdraws which will leave some aftermath from the Northwest between Romagna and Ancona on the 12/15 nodes.
About Great Lakes we will have some residual foehn in the morning.
center on Tyrrhenian side little windy the Tyrrhenian coasts. We will have greater chances on the Lazio coasts for North on the 18/20 nodes in attenuation in the afternoon;
on Adriatic side the wind from the Northwest will blow from Ancona to the Molise coasts with intensity on the 15/18 nodes. In Molise there will be greater chances of more intense wind up to 20/22 nodes, but with weakly disturbed weather.
south Adriatic side: the Mistral will affect the Apulian coasts with average intensity on 18/20 knots and with weakly disturbed weather in the morning, but improving during the morning;
Ionic side: even the Ionian side will be reached by the Mistral. The wind from the Northwest will blow on the 18/20 knots on the Lucanian and Apulian coasts and will reach the Crotonese, here with greater intensities and on 22/25 nodes. Over the course of the day the weakly disturbed weather in the morning will see an improvement.
The commercials of the Strait of Messina will benefit from ventilation from the North on 20/22 nodes, but they will also have some weak rain in the morning;
Tyrrhenian side: here the prevailing wind will be from the North and will mainly affect the coasts of Campania with intensity on the 15 nodes.
islands the Sardinian coasts will be abandoned by the Mistral, that will continue to interest, Instead, those Sicilian. In Sicily, in fact, the wind from the Northwest will blow on the 25/28 knots between Palermo and Trapani, 15 knots on the remaining coasts north of the island (here accompanied by weak rain) and on 20/22 knots between Agrigento and Ragusa.
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