St tr compared with Cs

(Section 2.3.8.6.2)

Thin Stratus (translucidus) is distinguished from Cirrostratus by:

Not being so completely white, except when viewed towards the Sun

The text enclosed in grey-shaded boxes, like this example, comprises Annex I to the Technical Regulations (WMO-No. 49) and has the legal status of standard practices and procedures.

St tr compared with Cs

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