Nature Walk: Cumulus Clouds
“Cumulus clouds indicate fair weather and are generally between 1,000 and 5,000 feet above the ground. The top edges are cauliflower-shaped and pristine white, while the bottoms tend to be flat and often appear gray if the layer is thick enough to block the light passing through them. They are created by warm air thermals, usually form in midday and tend to diminish and disappear as surface cooling occurs in the evening. In midday you may be able to witness the cotton-like strands knitting together by looking directly overhead.” – Carl Kurtz
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