PFM Sky Cover Code

Predominant Sky Cover (Opaque Cloud Coverage in Percent)

Equivalent Sky Cover Expressions

CL

    0% to  ≤ 5%

SUNNY or CLEAR

FW

> 5% and ≤ 25%

SUNNY or MOSTLY CLEAR

SC

> 25% and ≤ 50%

MOSTLY SUNNY or PARTLY CLOUDY

B1

> 50% and ≤ 69%

PARTLY SUNNY or MOSTLY CLOUDY

B2

> 69% and ≤ 87%

MOSTLY CLOUDY or CONSIDERABLE CLOUDINESS

OV

> 87% and 100%

CLOUDY or OVERCAST

Table 16.  PFM Sky Cover Codes.