What is the scientific reason for the accumulations that hinder public life in the southern highlands?

Weather of Arabia- The Kingdom is awaiting directing a very cold and polar air mass from Turkish territory through the island of Cyprus during the hours of late Monday / Tuesday night and on Tuesday, working to increase the air activity in all regions of the Kingdom, and showers of snow on intermittent periods starting from the dawn and morning of Tuesday In areas with a height of more than 1000 meters above sea level, where it may accumulate in a limited manner, and it may fall below this height for brief periods.

However, what is the scientific reason that might make these accumulations effective and may hinder the aspects of public life in the highlands of the south of the Kingdom?

The elevated areas in Tafila and Al-Sharah governorate west of Ma'an Governorate, as well as possibly the heights of the Mu'tah Brigade and the southern shrine, have privacy in this weather condition, where the height of these mentioned areas first exceeds 1400-1500 meters above sea level, and the temperatures in them will be around the zero centigrade barrier All day long, and less so at the tops of those areas.

This would cause snow to accumulate as soon as it fell, as well as freezes to get roads in it, which may hinder the aspects of public life and be influential in general.

Whereas, the temperatures in the northern and central highlands are not expected to fall below the zero percentage point, and therefore the snow, if accumulated, is ineffective and wet, meaning that it will accumulate for periods and in limited quantities and will "melt" as soon as the snow stops, which is expected in the case of tomorrow.

It is expected to continue forming a freeze on the roads in the highlands of the south of the Kingdom as well in the eastern Badia, specifically "the international road running east towards Iraq" with the dawn hours of Wednesday and early Thursday, which calls attention to this point in particular.