Cloud types are usually grouped into low, middle or high clouds, referring to the altitudes at which they occur.
Low clouds are generally below about 6,500' (1,981.2m). Middle clouds range from 6,500'-20,000'(1,981.2m-6,096m). High clouds range from 20,000' to over 40,000' (6,096m-12,192m+) in altitude. Cloudy Sky 1
If you would like more information about OSWOA please go to my post on 12 March 2010.
The OSWOA shown here are original watercolour paintings using Artist quality Winsor & Newton paint on 140lb. Arches 100% rag, acid free watercolour paper. They are priced at $40.00 each and sold unframed.Cloudy Sky 4
