The following METAR is from Ashgabat airport (UTAA)
UTAA 071300Z 13006KT 9999 FEW050CB BKN050 BKN100 15/06 Q1013 R88/70D NOSIG
What does R88/70D mean, I couldn't find any references?
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1 Answer
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I assume it was a typo, as R88/70D is not a correct METAR format. According to this website with historical METARs the METAR of today at 1300Z at UTAA was:
METAR UTAA 071300Z 13006KT 9999 FEW050CB BKN050 BKN100 15/06 Q1013 R88/CLRD70 NOSIG=
All other METARs from UTAA today contain "R88/CLRD70 " as well.
R88/CLRD70 means: all runways are cleared (no more deposits), and a friction coefficient of 0.70.
answered Mar 7, 2019 at 16:44
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$\begingroup$ My guess: R88: all runways, 70: friction coefficient .70, D: dry. $\endgroup$ Mar 7, 2019 at 20:52