15. Low Broken Up Clouds of Bad Weather, Lg. 



The picture shows patches of dark fractostratus (or fractociimuhis) 

 against a background of thin altostratus. If the low clouds here are 

 remnants of preexisting cumulus, Li or L2, they should be so coded, 

 but clouds of this type which develop below altostratus or nimbo- 

 stratus should be coded Zg. (Photo at Cheyenne, Wyo., by H. T. 

 Floreen.) 



16. Low Broken Up Clouds of Bad Weather, Lg. 



The low clouds show up dark against the lighter background of 

 nimbostratus which appears in places, chiefly at the upper right. 

 The low clouds show some relief especially where they are not badly 

 broken up; they appear to be fractocumulus rather than fracto- 

 stratus. The clouds in the background may be nimbostratus or alto- 

 stratus but in either case the proper code numbers are AL, for the 

 middle layer and L^ for the low clouds. (Photo at Manila, P. I., 

 by C. E. Deppermann.) 



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