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Di: thp
Nel fine settimana almeno sei tornado si sono formati in Colorado, colpendo alcune zone rurali nei pressi di Denver, senza provocare danni e feriti gravi. L’allerta resta tuttavia in vigore in altre zone degli Stati Uniti, come il sud dell’Illinois. Ogni anno sono circa 1'200 i tornado negli Stati Uniti, in aumento dal 1950 a oggi.
Nel maggio scorso ricercatori dell’agenzia federale di oceanografia, meteorologia e climatologia hanno lanciato un nuovo progetto di studio per aumentare la comprensione del fenomeno
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