 On 23 September 2009, a dust storm that started in South Australia and inland New South Wales blanketed the city with reddish orange skies early in the morning.Originating from the north-eastern region of South Australia, the dust storm lifted thousands of tons of dirt and soil which were then dumped in Sydney Harbour and the Tasman Sea.It stretched as far north as southern Queensland and it was the worst dust storm in 70 years.