2010_08_24 Approaching low pressure system
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This morning there was this magnificent sequence of clouds as a low pressure system approached Finland from the south.
At first, beautiful cirrostratus gave birth to some well defined if not very intense halos. Iridescent colours were also observed in the leading edges of the swiftly moving banks of cirrocumulus.
Then the sky was filled with Cirrus spissatus finally morphing to alstostratus.
In radar images this appraching system was very well defined.