Plate 1-4 of 1921 cloud chart. 1. Cirrus becoming detached from thunderstorm top. 2. Dense, bunched cirrus, probably of thunderstorm origin. 3. Tufted cirrus, similar to (2) but thinner. 4. Cirro-stratus and fibrous alto-stratus such as originate from thunderstorm tops.
Photo Category: Weather Wonders
Photo Date: 1921
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| Added On | 19th October 2015 |
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