Clearly visible night shining clouds - 23.7.2022 at 00.14 Lahti Observation number 107905

Visibility III / V

Teemu Hämäläinen, Lahden Ursa

Nice night clouds were visible around midnight. At best, wisps of clouds reached the sky. An interesting detail was the small wave area.

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Additional information

Havainto
- Night shining clouds
Brightness of the noctilucent clouds
- Clearly visible night shining clouds
Cloud coverage in the sky
- Covered 1/4 of the sky

Noctilucent clouds
- Veil
  
  The night cloud vail is a vague thin night shining cloud with no clear structure.
  
  Noctilucent cloud veil with one strong belt formation. Image by Veikko Mäkelä.
- Band
  
  Bands of noctilucent clouds are long, stripe like cloudformation.
  
  A single, very bright NLC band. Photo by Mikko Peussa.
  
  On the upper left corner, rising bands are clear on the image. Whereas waves of NLC cover the bottom right side of the image. Photo by Juha Tonttila.
- Waves
  
  Waves of noctilucent clouds are short, close groups of clouds.
  
  Wavy NLC by Jari Luomanen.
  
  NLC waves by Hannu Määttänen.
- Swirl
  
  Swirls are curved night shining cloud forms. For example, a single night cloud belt or group of waves may be curved on a clear bend.
  
  The arrow indicates a slight vortex in the night cloud belt. Photo by Joni Tahkoniemi.
  
  Strong swirls in image taken by Veikko Mäkelä.

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Clearly visible night shining clouds - 23.7.2022 at 00.14 Lahti Observation number 107905