Figure 6: The diurnal change from the seasonal mean of all cloud observations expressed as a change in percentage points of the total clear and cloudy observations. Midnight represents the NOAA 11 evening pass which actually occurred between 0100 and 0300 a.m. local time. Sunrise is the morning NOAA 10 or 12 pass nominally from 0700 to 0800 a.m. local time. Local Noon is the afternoon NOAA 11 pass from 0100 to 0300 p.m. Sunset is the evening NOAA 10 or 12 pass from 0700 to 0800 p.m.