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La sabbia del Sahara oggi ha oscurato visibilmente il cielo in alcune parti della Svizzera. Il fenomeno non è un problema per gli esseri umani, ma causa più nuvole nel cielo, riferisce MeteoSvizzera.
Dopo che le concentrazione di polvere dal deserto africano era già aumentata ieri, oggi ancora più sabbia è arrivata in Svizzera provocando foschia e dando alla luce una tonalità lattea giallo-rosea. Meteorologi e testimoni oculari hanno postato foto sui social media.
Domani, un fronte freddo dovrebbe interessare la Svizzera con precipitazioni e masse d'aria mutevoli che toglieranno sabbia dall'atmosfera.
La sabbia proviene principalmente da Paesi dell'Africa nord-occidentale, ossia Mauritania, Mali e Algeria. Si è levata in aria, a un'altezza da due a cinque chilometri, a causa delle condizioni meteorologiche e delle temperature calde, prima di essere trasportata fino in Svizzera dai venti del sud.
La sabbia del Sahara sulla Svizzera
Telegiornale 06.02.2021, 21:00
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