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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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Sydney's cold mornings to continue

15:40 EST

On Saturday morning Sydney awoke to its coldest morning of the year so far, at just seven degrees it was a good day to sleep in.

Canberra slow to thaw after frozen fog of a morning

15:29 EST

Canberra took until brunch to shake off the frozen fog which had blanketed much of northern ACT just before sunrise when it had chilled to minus five degrees.

Frozen knees and numb fingers: A photographer's pain to capture the perfect frosty morning

08:24 EST

Chris McFerran admits he may be in a very small minority when it comes to wishing for forecasts of sub-zero temperatures and thick fog.