Weather Glossary - X

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X-rays

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.

Xenon

An inert gas that occurs at extremely low concentration in the atmosphere.

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Cyclone Esther expected to form in Gulf overnight near NT-Queensland border

17:54 EDT

The Bureau of Meteorology (BOM) says Tropical Cyclone Esther is expected to form overnight and pass close to the tiny Northern Territory community of Robinson River on Monday.

Flooding rain spreads west across southern and central Queensland inland

16:47 EDT

More heavy rain is possible across Queensland's southern and central inland areas today in the wake of severe storms leading to flash flooding overnight.

Twin tropical cyclones odds on for northern Australia

15:17 EDT

Two active tropical cyclones are a high chance over northern Australian waters on Monday.