Huge shelf cloud hitting the coast of New South Wales, Australia. It is type of arcus cloud formed at the leading edge of a thunderstorm where the downdraft and an updraft of the storm intersect.
The shelf cloud ‘cloud tsunami’ measured several kilometres in length and swept across the city throughout the afternoon and early evening.
Social media was flooded with images of the wall of dark clouds as they rolled over Bondi beach. Residents were warned to expect large hailstone and heavy rain.