See also: Sirocco (homonymy)

The sirocco (or scirocco ) is a Vent Saharan violent one, very dry and very hot which blows on the North Africa and the south of the sea the Mediterranean when a stationary Masse of air tropical installed on the the Sahara is between a anticyclonic zone installed with the vertical of the line of the Tropic of Cancer and a sudden zone of strong depression growing hollow quickly above the Sea the Mediterranean. The Mass of air Saharan, beforehand stationary, therefore extreme, is then aspired towards north by the depression and goes up in direction south-north above the Morocco, the Algérie and the Tunisia towards the Andalusia, the Balearic Islands and the Sicily.

The sirocco can send very fine grains of sand until in the the Alps. Added to heat, this sand gives a yellow color dew to snow and the cast iron in spring accelerates some.

The sirocco are very in charge out of sands… and certain years in locusts devastating pilgrims of the cultures!

The sirocco is called shehili by the Tunisian and chergui with the Morocco.