A broad band of cloud extending from northern to southeastern NSW with a low pressure trough is triggering thunderstorms, some potentially severe. Skies are clearer in the west under a weak high pressure ridge.
In December 2014 we upgraded our lightning network to the latest in sensor technology as used by the world's leading meteorological agencies. This has resulted in changes and improvements to the lightning data you will now see. The main changes are:
00:30 EDT Locals on the Cocos Islands have spent Christmas Day hunkered down in their homes, as Tropical Cyclone Kate passed just north of the tiny community more than 2,000 kilometres off the West Australian coast.