TABLE 3. CLOUD TYPE 

 Code 







Stratus or Fractostratus 



1 



Cirrus 



2 



Cirrostratus 



3 



Cirrocumulus 



4 



Altocumulus 



5 



Altostratus 



6 



Stratocumulus 



7 



Nimbostratus 



8 



Cumulus or Fractocumulus 



9 



Cumulonimbus 



TABLE 4. CLOUD AMOUNT 



Code 







No clouds 



1 



Less than 1/10 or 1/10 



2 



2/10 and 3/10 



3 



4/10 



4 



5/10 



5 



6/10 



6 



7/10 and 8/10 



7 



9/10 and 9/10 plus 



8 



10/10 



9 



Sky obscured 



