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.
Tropical Cyclone Alfred has weakened to a tropical low as it begins to make landfall on the Gulf of Carpentaria's southern coast.
Some homes in the community of Borroloola on the Gulf of Carpentaria were evacuated with 74 residents sheltering elsewhere, as they waited for Cyclone Alfred to make landfall about sunrise on Tuesday.
WA's Kimberley is in the midst of one of its biggest wet seasons on record, causing headaches for emergency services, remote communities and cattle stations cut off by flooding, but it has not been all bad news for the region.