In aviation weather reports, what range of cloud coverage does the descriptor FEW represent?
Cloud amounts are reported in oktas (eighths). It is assumed that the sky is divided into 8 equal parts and the total cloud amount is reported by an assessment of the number of eighths of the sky covered by cloud.
ICAO Annex 3
Appendix 3
4.5.4 Reporting
4.5.4.3 Recommendation.- In local routine reports, local special reports, METAR and SPECI:
a) cloud amount should be reported using the abbreviations "FEW" (1 to 2 oktas), "SCT" (3 to 4 oktas), "BKN" (5 to 7 oktas) or "OVC" (8 oktas).
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