The Bulahdelah Tornado was an intense tornado which occurred near the town of Bulahdelah (100 kilometres (62.1 mi) north-northeast of Newcastle, New South Wales, Australia on 1 January 1970, and is thought to be the most destructive and powerful tornado ever documented in Australia.
[1][2] The tornado left a damage path 22 kilometres (14 mi) long and 1.6 km (0.99 mi) wide through the Bulahdelah State Forest.
A caravan was destroyed and a 2,000 kg (4,400 lb) tractor was lifted into the air, landing upside down.
From damage analysis, the storm was stated to have "incredible devastation"; however, it was rated as an F0 on the Fujita scale.
[3][4][5] The tornado was reported by witnesses as a swirling black cloud surrounded by flying debris, and producing a thunderous roaring sound.