Weather Glossary - X
The portion of the electromagnetic spectrum that has a very short wave length. It has a wavelength longer than gamma rays, yet shorter than visible light. X-rays can penetrate various thicknesses of all solids, and when absorbed by a gas, can result in ionization.
An inert gas that occurs at extremely low concentration in the atmosphere.
Towns in Queensland's south-east are being hit by storms, but Brisbane has escaped much of the rainfall and the weather is no longer regarded as severe.
The start of spring has been unusually dry across most of New South Wales.
The Queensland Rural Fire Service says fires on parts of the state's coast will burn hotter and faster this season due to the ongoing dry.