Australia has been suffering one of the worst periods of drought since the 1940's and an eight-year dry spell and record high temperatures have combined to create the country's worst dust storms in 70 years. The storms normally only affect the interior of the country, but this time, they've covered Sydney as well, all but shutting down the airport and halting the service of passenger ferries for several hours.
According to The Age, air quality in Sydney was reported as 40 times worse than the level regarded as "poor" and 20 times the "hazardous" level. People are being advised not to go outside, especially if they have respiratory problems, and to take care when driving in the poor visibility. Officials said they had received over 250 calls from people reporting breathing problems as a result of the thousands of tons of dust in the air.
The storms were visible on radar and their effects were felt as far away as New Zealand, 1400 miles away. (News taken from http://www.gadling.com)
(pictures courtesy from www.boston.com)
