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The sky appears blue to the human eye as the short waves of blue light are scattered more than the other colours in the spectrum, making the blue light more visible.
Take a look at 7 fascinating things you might not know about one of the most extraordinary yet commonplace weather phenonmena.
Altocumulus clouds are generally associated with settled weather and will normally appear white or grey with shading.
Make more informed decisions about how and when to ride safely during different weather conditions.
Please note that when changing units, only forecasts and maps will be affected.