HUMIDITY AND CLOUD COVER FORECAST FOR LA SILLA, CHILE. Forecast period starting at 03:00 on 2008.07.20 (day 202 of 2008). Forecast Period | HUMIDITY | CLOUD COVER (UTC) | Avg UTH(%) Sig UTH PWV(mm) | %Total %Opaque %Transp. T.Index | CldAdj 2008.07.20 03h | 33.9 6.5 4.06 | 20 12 8 n/a | 0 2008.07.20 03h-06h | 34.1 5.0 4.01 | 5 3 2 0.99 | 0 2008.07.20 06h-09h | 23.8 3.8 3.56 | 0 0 0 1.00 | 0 2008.07.20 09h-12h | 20.2 1.8 3.25 | 0 0 0 1.00 | 0 2008.07.20 12h-15h | 30.0 20.7 3.26 | 63 63 0 n/a | 0 2008.07.20 15h-18h | No Clear Pixels | 100 100 0 n/a | 0 2008.07.20 18h-21h | 35.7 22.3 3.35 | 20 20 0 n/a | 0 2008.07.20 21h-00h | 63.6 25.1 3.78 | 69 56 13 n/a | + + 2008.07.21 00h-03h | 70.3 22.7 3.94 | 81 63 18 n/a | + 2008.07.21 03h-06h | 49.7 25.4 3.63 | 43 37 6 n/a | +