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Ursa Astronomical Association
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Ursa Astronomical Association

Arcus cloud - 23.6.2021 at 14.15 - 23.6.2021 at 14.20 Espoo Observation number 99106

Visibility IV / V

At the desk, I noticed that the amount of light was starting to decrease. There had been an indication of thunderstorms in the forecasts and on the feeder I had seen from a weather radar image that a rain cloud was approaching from the south. With a cell phone urgently to the balcony. The avalanche in the picture was just coming on and I got the picture of it just before the gusts of wind started to intensify quickly and the trees bent over to the classes. At the same time, heavy rain also started and after a while the flashes flickered and rumbled as I was at my desk again.

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  • Observed storm phenomena
    • Arcus cloud info

      Vyörypilvi on ukkospilveen liittyvä hyllymäinen tai rullamainen, usein selvärajainen matalalla roikkuva pilvi. Tämän uhkaavan näköiseen pilvimuodostelman ylitykseen liittyy usein puuskainen tuuli.  


      Vyörypilvi. Kuva Pete Pajuheimo.


      Vyörypilvi. Kuva Pauli Jokinen.


      Vyörypilvi. Kuva Jaakko Kuivanen.


      Vyörypilvi. Kuva Panu Lahtinen.


      Vyörypilvi. Kuva Eetu Saarti.


      Vyörypilvi erkanee kielekkeenä ukkospilven alaosasta. Kuva Markku Siljama. 

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