octa

Etymology
See.

Noun

 * 1)  The proportion of the sky that is obscured by clouds, in eighths (one octa means that one eighth of the sky is obscured, two octas that one quarter is obscured, and so on).
 * 2) * 1935, Indian Science News Association, Science and Culture, Indian Science News Association, Page 93
 * It has been shown that most of the flood-rainy days are associatied with 6-8 'octa ScFb, CuSc in the morning and CuSc, ScFb with or without Cb in the afternoon of the previous day.