MSGID: 1:317/3 6320c565   
   PID: hpt/lnx 1.9.0-cur 2019-01-08   
   TID: hpt/lnx 1.9.0-cur 2019-01-08   
    EPOD - a service of USRA   
      
   The Earth Science Picture of the Day (EPOD) highlights the diverse processes   
   and phenomena which shape our planet and our lives. EPOD will collect and   
   archive photos, imagery, graphics, and artwork with short explanatory   
   captions and links exemplifying features within the Earth system. The   
   community is invited to contribute digital imagery, short captions and   
   relevant links.   
      
      
    iridescent Pileus Cloud Observed from Ashburn, Virginia   
      
      September 13, 2022   
      
       Lindsay_IMG_5010 (004)   
      
      Photographer: Linsday Hank   
      
      Summary Author: Lindsay Hank;  Jim Foster   
      
      The photo above showing a particularly  colorful, pileus type cloud   
      was taken from Ashburn, Virginia, as a  thunderstorm approached just   
      before 7:00 p.m. local time on August 9, 2022. The camera was facing   
      west, in the opposite direction a  rainbow would be seen. Though the   
      pileus itself is mostly hidden by the darker storm clouds, the   
       iridescent colors help to reveal it.   
      
      In thunderstorm  updrafts, rapidly rising air into a very humid   
      layer may form a silky looking, rounded cloud, called a pileus cloud.   
      If the cloud is in the vicinity of the Sun, and if the  cloud   
      droplets are similarly sized, then  diffraction of sunlight will   
      produce iridescence. Note that the colors typically observed aren't as   
      attention getting as seen here. Always take care to protect your eyes   
      when looking anywhere near the Sun.   
      
      
      Ashburn, Virginia Coordinates: 39.0438, -77.4874   
      
      
   Related EPODs   
      
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      of Hunga Tonga  Pollen and Flying Seeds  Volcanic Sunsets   
      Observed from Mutare, Zimbabwe in 2022  Distortion of the Setting   
      Moon and Lower Mock Mirage  Fogbow Observed from the Ground and from   
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       More...   
      
   Atmospheric Effects Links   
      
        *  Atmospheric Optics   
        *  Optic Picture of Day: Gruppo Astrofili Galileo Galilei   
        *  Color and Light in Nature   
        *  The Colors of Twillight and Sunset   
        *  Refraction Index   
        *  Image Gallery: Atmospheric Effects   
        *  What is a Rainbow?   
      
   -   
      Earth Science Picture of the Day is a service of the  Universities   
      Space Research Association.   
      
   https://epod.usra.edu   
       
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