HUMIDITY AND CLOUD COVER FORECAST FOR CHAJNANTOR, CHILE. Forecast period starting at 06:00 on 2013.10.18 (day 291 of 2013). Forecast Period | HUMIDITY | CLOUD COVER (UTC) | Avg UTH(%) Sig UTH PWV(mm) | %Total %Opaque %Transp. T.Index | CldAdj 2013.10.18 06h | 26.1 2.8 1.79 | 0 0 0 1.00 | 0 2013.10.18 06h-09h | 26.1 2.8 1.80 | 0 0 0 1.00 | 0 2013.10.18 09h-12h | 21.9 3.2 1.58 | 0 0 0 1.00 | 0 2013.10.18 12h-15h | 18.9 0.8 1.46 | 0 0 0 1.00 | 0 2013.10.18 15h-18h | 17.5 1.6 1.43 | 0 0 0 1.00 | 0 2013.10.18 18h-21h | 17.1 1.6 1.41 | 0 0 0 1.00 | 0 2013.10.18 21h-00h | 16.7 1.3 1.40 | 0 0 0 1.00 | 0 2013.10.19 00h-03h | 16.4 0.6 1.37 | 0 0 0 1.00 | 0 2013.10.19 03h-06h | 16.0 0.9 1.35 | 0 0 0 1.00 | 0 2013.10.19 06h-09h | 16.3 1.8 1.42 | 0 0 0 1.00 | 0 2013.10.19 09h-12h | 16.3 2.3 1.47 | 0 0 0 1.00 | 0