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strange cloud formation, oct 5th

  • 06-10-2012 1:44pm
    #1
    planetX
    Closed Accounts Posts: 1,441 ✭✭✭


    Hi, pics were taken in North Galway.
    219.jpg

    218.jpg

    220.jpg
    In the last picture the dark line across the blue sky continuing the line of the clouds was there - it's not a camera fault. It looked really strange, I couldn't work out what it was. Would love to hear an explanation...


Comments

  • #2
    maquiladora
    Registered Users, Registered Users 2 Posts: 11,134 ✭✭✭✭maquiladora


    The top pictures appear to be Stratocumulus Undulatus to me.
    The straight edge look in the bottom picture is caused by the weather front.

    Edit : You can see this in the satellite picture here :
    http://www.boards.ie/vbulletin/showpost.php?p=81110952&postcount=52


  • #3
    Su Campu
    Closed Accounts Posts: 4,279 ✭✭✭Su Campu


    planetX wrote: »
    In the last picture the dark line across the blue sky continuing the line of the clouds was there - it's not a camera fault. It looked really strange, I couldn't work out what it was. Would love to hear an explanation...

    The dark line is simply a shadow cast by the cloud layer on the air beneath. The usual scattering of the sunlight off atmospheric aerosols, dust, etc. is reduced in the shade of the cloud, hence it appears darker.


  • #4
    zenno
    Closed Accounts Posts: 5,377 ✭✭✭zenno


    It's a cloaked alien spaceship and it's electromagnetic propulsion system is what is causing the strange cloud formations.

    Only messing, but i have to say, i never seen clouds shaped like that before in a rectangular shape, strange rare event i'm sure.


  • #5
    Su Campu
    Closed Accounts Posts: 4,279 ✭✭✭Su Campu


    zenno wrote: »
    It's a cloaked alien spaceship and it's electromagnetic propulsion system is what is causing the strange cloud formations.

    Only messing, but i have to say, i never seen clouds shaped like that before in a rectangular shape, strange rare event i'm sure.

    It's normal altocumulus undulatus, but it is occuring right on the edge of the frontal cloud layer, hence the truncated edges.


  • #6
    planetX
    Closed Accounts Posts: 1,441 ✭✭✭planetX


    Su Campu wrote: »
    The dark line is simply a shadow cast by the cloud layer on the air beneath. The usual scattering of the sunlight off atmospheric aerosols, dust, etc. is reduced in the shade of the cloud, hence it appears darker.

    :o seems obvious now.
    It was cool that the angle of the shadow exactly continued the line of the front though, it looked really weird at the time.


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