How spectacular is this? 'Arcus' or commonly known as a 'rolling shelf cloud' captured when gust front came through the Yaloak Wind Farm, east of Melbourne on Valentine's Day (14 February 2020). These low, horizontal wedge-shaped clouds attached to the base of a parent cloud are formed by the outflow from the thunderstorm. While many areas inland saw no rain at all on the 14 February, very high rainfall totals recorded in pockets along the east coast. Sheoaks, Vic—40 mm in 26 minutes Ceratodus,

Incredible! A huge rolling arcus cloud appears over the coast of Japan. | The Telegraph