Sydney Dust Storm "Unprecedented" (PHOTOS)

Sydney Dust Storm "Unprecedented" (PHOTOS)

A huge dust storm -- carrying 5 million tons of dust -- swept eastern Australia and blanketed Sydney on Wednesday, causing the city to glow red, Reuters reports.

The storm interrupted international flights, and health officials urged people to stay indoors.

Check out these photos of the storm and vote on your favorite. We're also asking people to send in photos of other amazing storms they've seen around the world. Hit the participate button to contribute.

Reuters reports that the dust storm has been caused by a cold front in New South Wales.

The Bureau of Meteorology said a big cold front in New South Wales caused severe thunderstorms and gale-force winds, which whipped up the dust from the inland and spread it across Australia's most populous state. Winds of more than 100 km per hour also fanned bushfires in the state.

"This is unprecedented. We are seeing earth, wind and fire together," said Dick Whitaker from The Weather Channel.

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