During the night 16-17 September, an upper-level disturbance crossed the Alps and northern Italy causing some rain (mainly in north-east Italy).
22 October 2020
17 September 2013
After the passage of the trough, foehn winds entered the southern Alpine valleys and the Po Valley where visibility improved and relative humidity dropped to 20% (e.g. in Locarno) with temperatures around 20 °C.
Somewhere close to Verona the north-westerly foehn winds encountered the north-easterly Bora winds (60 km/h in Trieste), which had started to invade the north-eastern parts of Italy (Friuli Venezia-Giulia and Veneto regions).
As can be seen in the animation, the confluence of the two wind systems triggered a line of cumulus clouds which may have caused some weak rain showers in the area of Verona.
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