In this period, Italy is at the center of a unique and complex meteorological situation, involving significant phenomena such as a moving cyclonic vortex and the influence of a particularly persistent High-Pressure field.
This scenario has recently caused significant weather events in regions like Liguria and Sardinia and, in the coming days, will continue to influence the climatic conditions of various areas of the Mediterranean.
Let’s see how the cyclonic vortex and High Pressure intertwine during this period and what effects we can observe on the Italian climate.
Movements of the cyclonic vortex and atmospheric balancing
The cyclonic vortex that recently hit Liguria and Sardinia has generated heavy rainfall, leading to significant rain accumulations, especially in mountainous and coastal areas.
This system, characterized by strong low pressure and ascending currents, is now moving westward, heading towards the Iberian Peninsula and the Moroccan interior.
Its migration will allow the central Mediterranean to experience a temporary stabilization, favored by the arrival of warm and dry currents from North Africa. This configuration creates a sort of atmospheric balance, with High Pressure strengthening over central-northern Europe and low pressure persisting over Southern Europe and North Africa, creating a natural barrier for disturbances.
The role of Rex Blocking and High Pressure
The Azores High, always associated with stable and mild conditions, is extending over all of central Europe, consolidating as a vast area of high pressure over Northern Europe.
This phenomenon creates what meteorologists call Rex Blocking, an atmospheric configuration that occurs when one high pressure aligns with another high pressure, forming a barrier that limits the passage of disturbances and frontal systems.
Rex Blocking causes an atmospheric stasis that lasts for days, keeping the climate stable and preventing cold air masses from advancing towards central and southern Europe.
Conditions in Italy and forecasts for the coming days
Italy will therefore benefit from stable and milder meteorological conditions compared to the seasonal average, with a climate that could extend until the first days of November.
The depression vortex, isolated near the Moroccan interior, will facilitate the formation of a subtropical ridge that will ensure atmospheric stability over much of the Peninsula.
In many regions, especially in the Po Valley, an increase in morning and evening fog is expected, a recurring phenomenon when pressure is high, and the air remains still.
Temperatures will also exceed the typical average for the season, with values that could reach 20°C and beyond, especially in coastal and southern areas.
This mild climate could last throughout the week, offering sunny and pleasant days in many parts of the country.
Implications of Rex Blocking and atmospheric effects
Rex Blocking represents a particularly powerful atmospheric phenomenon that slows the normal flow of zonal currents and creates a real block of frontal systems.
This situation mainly establishes itself over central-northern Europe, acting as a natural shield against disturbances and cold from the Arctic or Atlantic regions.
The Anticyclone, in fact, acts by absorbing and deflecting cold currents, preventing them from influencing the southern regions of the continent.
For Italy, this translates into a prolonged phase of meteorological stability, with temperatures remaining above average for several days.
No cold wave on the horizon
Given the current atmospheric configuration, medium and long-term forecasts do not indicate the arrival of significant cold waves.
High Pressure will continue to dominate the meteorological scenario, keeping the climate stable and making strong temperature drops unlikely.
A substantial change will be necessary for this High-Pressure structure to modify and allow the entry of colder air masses.
Follow our feed
