Sky News Weather Channel started broadcasting on 1 January 1999 under the name "Weather 21": channel 21 on the Austar channel line-up. Weather 21 was set up by Cox Inall Communications and the meteorological firm The Weather Company and was owned by Austar.
On January 1, 1999, Sky News Weather Channel launched under the name "Weather 21" on Austar's cable channel lineup. The Weather Company and Cox Inall Communications created Weather 21, which was owned by Austar.