MSGID: 1:317/3 638b8ee9   
   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.   
      
      
    Cumulus Clouds with Spikes   
      
      December 02, 2022   
      
      
       IMG_0290   
      
       IMG_3739   
      
      Photographer:  Mila Zinkova   
      
      Summary Author:  Mila Zinkova;  Jim Foster   
      
      Shown above are curious shaped,  cumulus clouds that were observed   
      from near my home in San Francisco, California, on April 19, 2022. The   
      spike-like features have horseshoe shapes in some cases, as shown in   
      the bottom photo. Perhaps these spikes and horseshoes are caused by   
       convection -- intense localized heating of the most  optically   
      thick portion of cloud by the strong April sun. However, because the   
      atmospheric environment where the clouds formed wasn't suitable   
      ( stable atmosphere) for widespread building, they remained overall   
      fairly “flat” in appearance.  Click here to see a video of these   
      clouds.   
      
      San Francisco, California Coordinates: 37.7749, -122.4194   
      
      
   Related EPODs   
      
       Cumulus Clouds with Spikes  Mamattus Observed in Stratus Cloud   
       Roll and Lenticular Clouds Above Taiwan  Moonlit Monte Viso   
       Cumulonimbus Montage Above Taipei, Taiwan  Asperitas Clouds   
      Observed Above Hong Kong   
       More...   
      
   Cloud Links   
      
        *  Atmospheric Optics   
        *  The Cloud Appreciation Society   
        *  Cloud Atlas   
        *  Color and Light in Nature   
      
   -   
      Earth Science Picture of the Day is a service of the  Universities   
      Space Research Association.   
      
   https://epod.usra.edu   
       
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