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Nida, Lithuania

Latitude: 55° 18' 35'' N

Longitude: 21° 0' 36'' E

31 October 2014 1700 (Local Time)
Camera direction: towards S

Image P/S code: P.4.26

Image I.D.: 5741

C_L = 8, C_M = 7, C_H = /

Altocumulus stratiformis perlucidus opacus duplicatus
This photo has two layers of Altocumulus, as well as Cumulus fractus, humilis and mediocris; the latter is dissipating with the setting of the Sun. A thick layer of Stratocumulus is distant on the horizon.

The lower Altocumulus layer is extensive (stratiformis), has very small gaps through which light from the Sun can be seen (perlucidus) and, apart from the gaps, is thick enough throughout to mask the position of the Sun (opacus).

The higher and partly superposed layer of Altocumulus is revealed at the edge of the lower layer, above the Sun.

The Cumulus is mostly dissipating cells of small to moderate vertical extent (mediocris), as seen at 4 and 5. There are a few humilis cells with distinctive flat bases and nine scraps of fractus present. A relatively thick layer of Stratocumulus can be seen on the horizon; the edge of this layer stands out against the lower Altocumulus on the lower right.

There is an indeterminate form of Cirrus visible below the contrail on the lower left.
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© Raimundas Stonkus
Nida, Lithuania
Latitude: 55° 18' 35'' N
Longitude: 21° 0' 36'' E
31 October 2014 1700 (Local Time)

Camera direction: towards S
C_L = 8, C_M = 7, C_H = /
Image P/S code: P.4.26
Image I.D.: 5741
The sounding from 75 km to the south-south-west shows moisture to support middle-level cloud above 706 hPa.
© University of Wyoming

Altocumulus stratiformis perlucidus opacus duplicatus