HUMIDITY AND CLOUD COVER FORECAST FOR LA SILLA, CHILE. Forecast period starting at 12:00 on 2009.11.08 (day 312 of 2009). Forecast Period | HUMIDITY | CLOUD COVER (UTC) | Avg UTH(%) Sig UTH PWV(mm) | %Total %Opaque %Transp. T.Index | CldAdj 2009.11.08 12h | 14.4 2.3 n/a | 0 0 0 1.00 | 0 2009.11.08 12h-15h | 14.0 1.3 n/a | 0 0 0 1.00 | 0 2009.11.08 15h-18h | 15.4 1.7 n/a | 0 0 0 1.00 | 0 2009.11.08 18h-21h | 15.4 2.0 n/a | 0 0 0 1.00 | 0 2009.11.08 21h-00h | 19.0 2.6 n/a | 0 0 0 1.00 | 0 2009.11.09 00h-03h | 25.9 5.4 n/a | 0 0 0 1.00 | 0 2009.11.09 03h-06h | 26.0 7.6 n/a | 3 2 1 1.00 | 0 2009.11.09 06h-09h | 31.2 8.0 n/a | 9 8 1 0.99 | 0 2009.11.09 09h-12h | 56.2 18.1 n/a | 57 37 20 n/a | +