Best from last season (summer 2017)
Cloud making almost ready for the day.
Image above shows a typical but strange aircraft activity in May, 2017. In a matter of hours the sky is completely blanketed with artificial cloud cover. This happens on most summer days. Severity of the blanketing varies slightly.
Natural cumulus clouds look bizarre hanging in front of artifical grey blanket.
Artificial cloud cover lingers on for the rest of the day. On rare days without aircraft activity material from previous days still lingers in the air making blue sky look washed out.
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