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Ursa Astronomical Association

Other special clouds - 1.8.2022 at 12.25 - 1.8.2022 at 12.40 Turku Observation number 107998

Visibility IV / V

Mikko Peussa, Ursa (Länsi-Suomi)

Almond clouds, rarely seen in the Turku region, had spread over a wide area today, and some were quite impressive. Now let's put a decent set of pictures, although not all of them necessarily have the required 4 layers. However, several had much more.

Thanks to Lasse Nurmin and Matti Helin for the noise. After a long night awake, I was still under the covers, but already awake :)


Additional information
  • Havainto
    • Other special clouds
  • Cloud coverage in the sky
    • Covered 1/8 of the sky
  • Other special clouds
    • Stacked lenticularis info

      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.

Comments: 7 pcs
Lasse Nurminen - 1.8.2022 at 14.33 Report this

Ole hyvä vaan :) Komeaa katseltavaa oli, hyvä että sait kattavammalla kalustolla parhaat palat talteen.

Timo Alanko - 1.8.2022 at 14.38 Report this

No johan nyt!

Tero Sipinen - 1.8.2022 at 15.35 Report this

Hieno näky!

Mielestäni vitoskuvassa on selkein pino, muissa tulee vaikutelma, että "kerroksien" sijaan on ennemminkin kyse "irtoreunuksista". Olisiko sitten useamman erillisien velumin jämät?

Ja itseasiassa, kun vitoskuvassa ei ole kovin tasakokoiset kerrokset (reilusti isompi "emopilvi" ja selkeästi pinenmmät lehdykät), niin olisiko ennemmin pileus-pino kuin lenticularis-pino?

Mutta oli luokitus mikä vain, niin tavattoman komeat pilvet!

Pekka Parviainen - 1.8.2022 at 15.39 Report this

Olipa hyvät mantelit sinulla! Kuvasin noita samoja toista tuntia lentokentän maisemissa, ja todella täkäläisittäin poikkeuksellisen hieno mantelipäivä. Näitä edelsi yksi laaja ja pitkäikäinen altocumulus, joka esitteli hyvin erikoisia muotoja ja joka oli myös erittäin fotogeeninen. On vaan hienoa, kuinka pilvien seuraaminen synnyttää erikoisen hyvän olon!

Mikko Peussa - 1.8.2022 at 15.57 Report this

Mietin Tero myös tuota pileus-pino asiaa, mutta ajattelin että alta puuttuu kunnon emopilvi? Mutta ihan selkeitä nämä ei aina ole ja muutellaan tietoja tarpeen vaatiessa.  Joka tapauksessa manteleita oli vähän siellä sun täällä.

Markku Ruonala - 1.8.2022 at 18.50 Report this

Jo vain on komeat mantelit!

Eero Karvinen - 1.8.2022 at 20.13 Report this

Melkoiset mantelipilvijoukot siellä olleet!

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