The authorities and citizens are in a state of full combat readiness. bad weather barbaraas heavy snowfall, low temperatures and frost events are expected to intensify overnight and into the early hours of Monday morning.

“Hard day” characterized Tomorrow, the regional governor of Attica, Giorgos Patoulis, and in turn the spokesman for the fire department, Yiannis Artofios, said that strong phenomena will hit the pool next few hours. For this reason, in addition, one a number of measures in Attica and other regions of the country, and at noon on Sunday 112 was also activated.

At the same time, after another meeting at the Department of Civil Protection on Sunday afternoon, he addressed a strong recommendation to allow workers whose physical presence is required to come to work after 10:00.

From a meteorological point of view, according to the EMY emergency bulletin, after an overnight depression, snow will be intermittently heavy on Monday in Attica, as well as on the islands of the northern and eastern Aegean, Thrace, Sporades, Evia, eastern Sterea, the Cyclades and Crete..

The phenomenon of convergence of winds

In cases of bad snowfall in Attica, the distribution of snow by region highly dependent on wind convergence. In the general north current which prevails when we have snowfalls in Attica, topography of regions north and northwest of Attica (Evia, Boeotia), but also the relief of Attica itself largely forms the wind field and locally changes its direction and speed.

When air masses converge in the same area, forced to move quickly. These upward movements cause local water vapor condensation existing in the atmosphere and creating zones of increased rain, which then falls to the ground in the form of snow. This leads to what we have local outbreaks of snowfall thus, there are also significant differences in snow height in nearby areas.

The figure below shows such a typical case of convergence in areas of Western Attica, on Sunday eveningas predicted by his high resolution weather model National Observatory of Athens/meteo.gr.

Of course, it is emphasized that the exact prediction of where and when these convergence zones will be created is not always easy and for this reason it is not always possible to predict time and area increase or decrease in heavy snowfalls.

Monday weather from Meteo

They are expected on Monday snow falls to low-lying parts in Thrace, the North Aegean, the Sporades, Southeast Magnesia, Evia, the Eastern Continent (including Attica) and the Cyclades. It is also possible that there will be temporary and localized snowfalls even in low-lying parts, in some parts of the Eastern Peloponnese.

Rain and thunderstorms expected South Aegean and snowfall in its highlands and semi-mountains Crete. Severe frosts will be observed in Northwhere there will be continuous frosts in several areas.

OUR temperature will fluctuate in Western Macedonia from -15 to 0 degrees, in the rest of Northern Greece from -14 to 5 degrees, in Epirus from -14 to 7 degrees, in Thessaly from -15 to 3, in the rest of the mainland from -12. to 7, on the Ionian Islands from -1 to 6 degrees, on the islands of the North Aegean Sea from -4 to 3 and on the rest of the islands and Crete from -2 to 8 degrees Celsius.

winds in the Aegean and Ionian Seas, winds will typically initially blow from the north with strengths of up to 8-9 Beaufort and gradually weaken to 7-8 Beaufort.

IN Attica, we initially expect snowfalls even in low-lying areas. The phenomena will gradually subside, but will remain more localized and transient, mainly in the north of the prefecture. In other parts of the prefecture, temporary snow is possible, mostly in the afternoon. The wind will predominantly blow from the northwest up to 4-5 on the Beaufort scale and from the east up to 6 on the Beaufort scale. The air temperature will fluctuate from -1 to 2-3 degrees Celsius, but in the north, west and east it will be lower in some places up to 2-3 degrees Celsius.

IN Thessaloniki, we expect clear weather with passing clouds mostly in the afternoon. The wind will blow from the northwest with a force of up to 3-4 on the Beaufort scale. The air temperature will fluctuate from -3 to 4 degrees.