Penguin Droppings

By gen2

22-degree Halo

The cloud was thickening this afternoon and the setting sun was creating a 22-degree halo in a high layer of cirrostratus.
If the cirrostratus thickens and lowers with time, that can be a sign of an approaching weather front but the pressure remains high (and the forecast is to remain dry for the next few days) so nothing to worry about just now.

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