© Michael Bruhn

Mount Nelson, Tasmania, Australia

Latitude: 42° 55' 27'' S

Longitude: 147° 20' 39'' E

15 August 2011 1139 (Local Time)
Camera direction: towards E

Image P/S code: P.7.1

Image I.D.: 5934

C_L = 8, C_M = /, C_H = /

• Images & related info Other Images Images of 1987 edition
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  Stratocumulus stratiformis opacus and Cumulus fractus

  Large, rounded merged masses and rolls arranged in an extensive layer identify this cloud as Stratocumulus. The cloud was very thick at sunrise and was lifting and thinning during the morning. By early afternoon, only thin patches of the Stratocumulus remained.

  The lifting and thinning was due to the lower layers transitioning from being stable to being conditionally unstable as the large high to the south-east retreated southward.

  With the lifting and change of stability, Cumulus started to form. A few ragged pieces of Cumulus fractus can be seen under the Stratocumulus. 

  Links in the image description will highlight features on the image. Mouse over the features for more detail.

  © Michael Bruhn
  Mount Nelson, Tasmania, Australia
  Latitude: 42° 55' 27'' S
  Longitude: 147° 20' 39'' E
  15 August 2011 1139 (Local Time)
  
  
  Camera direction: towards E
  C_L = 8, C_M = /, C_H = /
  Image P/S code: P.7.1
  Image I.D.: 5934
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  High pressure system to the south-east moving southward ahead of a rapidly approaching cold front

  © Commonwealth of Australia 2011, Bureau of Meteorology
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  A slight inversion at 1 200 m is weakening and lifting. The inversion eroded over the next 12 hours.

  © University of Wyoming
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  This is a EUMETSAT channel 4 infrared image. An extensive layer of Stratocumulus is visible offshore to the east of Mount Nelson, Tasmania, Australia. Breaks in the Stratocumulus are also evident. A pre-frontal cloud band is approaching rapidly from the north-west.

  © EUMETSAT, 2011
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  Stratus viewed from above

  Viewed beneath Tai Mo Shan, Hong Kong's highest peak (957 m), is a layer of Stratus. The upper surface of Stratus generally shows undulations (usually of short wavelength) and sometimes displays protuberances. In strong winds the undulations become more pronounced. 

  At the top of the picture is a layer of Stratocumulus. The extensive nature of the cloud identifies the species as stratiformis. The layer of large rounded masses is sufficiently opaque to mask the Sun (variety opacus); however, some sunlight can be seen penetrating through gaps between elements, suggesting also the variety perlucidus. The dark, bluish streaks and light beams are a form of crepuscular rays. 

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  © Francis So
  Tai Mo Shan, Hong Kong, China
  Latitude: 22° 24' 32'' N
  Longitude: 114° 8' 16'' E
  07 February 2014 0804 (Local Time)
  
  
  Image P/S code: S.8.0
  Image I.D.: 6063
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  Stratocumulus stratiformis opacus undulatus

  The right half of the photograph shows a sheet of undulated Stratocumu!us; the undulations are particularly well marked at 1 and 2. The margin at 3 - 4 of the sheet is remarkably abrupt and ragged.

  The picture was taken approximately 12 hours after the passage of an occlusion; a weak anticyclone was developing over central Greenland.

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  © G. Rouillon
  Greenland (70 : 55 N, 40 : 38 W)
  Latitude: 71° 42' 25'' N
  Longitude: 42° 36' 15'' W
  17 July 1951 0200 (Local Time)
  
  
  Camera direction: towards W
  C_L = 5, C_M = 0, C_H = 0