Visibility III / V
The illuminating night clouds began to appear dim after midnight high in the west, east, and south sky, but then they disappeared. In the northern sky, night cloud bands were visible from the entire width of the sky at 1 o'clock, in the northeast a particularly brighter night cloud cluster (Fig. 1 1:17). By two o'clock the night clouds had risen almost to zenith, filling half the sky. The sky was clear, the weather was calm, the temperature was +19. There were commendably enough mosquitoes.
Pictures 1. Northeast 1:17, 2nd west 00:32, 3rd northwest 1:15, 4th north 2:00.