This is the rain radar for Melbourne: http://mirror.bom.gov.au/products/IDR023.loop.shtml
Up the top right corner are four 'rain clouds' (snapshot taken now
). Those 30km long streams are actually smoke from four ongoing fires - Healesville, Taggerty, Cathedral ranges and Kinglake.
Here's hoping the weather doesn't swing towards totalinfernodeath again in a hurry.