Other special clouds - 6.7.2021 at 13.03 Kellokoski Observation number 99367

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Veronica Laitinen, Keski-Uudenmaan Altair

When I drove to the store I had to drive aside and shoot special clouds because they looked like almond clouds

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Havainto
- Other special clouds
Cloud coverage in the sky
- Very small area

Other special clouds
- Stacked lenticularis
  
  Stacked lenticularis clouds, is a phenomenon in which there are several lentil-like clouds piled on top of each other. In the sky watch, the practical boundary between the conventional altocumulus lenticularis and the rarer lenticularis stack is considered to be at least three overlapping lenticular, i.e. layer-like, clouds.
  
  Lenticularis clouds are streamlined, flat cloud shapes. Typically, they occur when a mountain or mountain causes a vertical disturbance to the air flow. At the top of the resulting air wave, moisture may condense into cloud droplets, allowing a smooth lenticular layer to be observed. Sometimes such clouds also form without strong terrain in connection with various weather phenomena.
  
  Lenticularis clouds themselves are not uncommon and they can be seen quite often. Overlapping lentil cloud layers are clearly a less frequently seen phenomenon. Such a layerish pile cloud is formed when the wetter and drier layers of air alternate in the air. At that time, moisture condenses in some layers and not in others, so that even a very large number of lenticular layers can be detected.
  
  Only such clearly formed, layered lenticular clouds are collected in the sky due to their rarity.
  
  In Iceland, a layered lenticular cloud formed in a wave caused by mountains. Image from Wikipedia.

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Other special clouds - 6.7.2021 at 13.03 Kellokoski Observation number 99367