Other special clouds - 9.6.2021 at 20.46 Ikaalinen, Sisättö Observation number 98872

Visibility IV / V

Heidi Rikala, Ursa (Helsinki)

During the thunderstorm, I noticed a cloud like that with thin layers on top of each other. Thunder roared, but it wasn't quite right.

I don’t really know if this is any special cloud, but I hope the maintenance will check it out.

This description has been automatically translated from Finnish. Click here to see the original text.

0 1

Additional information

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

Other special clouds
- Pileus stack
  
  Pileus stack
  
  The pileus cloud typically occurs at the top of a thundercloud, forming a hat-like leaf above the main cloud. If at least three reeds are visible, the object can be considered a pileus stack.
  
  In situations where the top of the main cloud passes through the reeds, it is more like a velum cloud (veil cloud).
  
  Image by Jari Ylioja

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Other special clouds - 9.6.2021 at 20.46 Ikaalinen, Sisättö Observation number 98872