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    Does the sky really turn green before a tornado?

    The hills are alive*, fabio & macintyre, and 6 other people added this photo to their favorites.

    1. The hills are alive* 61 months ago | reply

      Not sure, but this is wonderfully painterly....

    2. Maureen Bond 61 months ago | reply

      wow, your title is perfect and you and your camera are such a great duo, love the clarity here....hope the weather won't get any worse for you.....

    3. bunchadogs & susan 61 months ago | reply

      have never been in one, and hope I never am.
      but with gray clouds against a blue sky maybe it turns green.
      Seen on your photo stream. ( ?² )

    4. It'sGreg 61 months ago | reply

      Pam, this is lovely--and so evocative of that period just before a really powerful storm. And yes, I've seen the sky turn greenish on summer evenings just before a big thunder-boomer.

    5. winnie's human (all work and no play) 61 months ago | reply

      thanks, guys. there is a scientific debate about whether this really happens. but I say, green skies are in the eye of the beholder. and photographer :)

    6. It'sGreg 61 months ago | reply

      I suppose the sky doesn't actually *turn* green. I mean, the light doesn't suddenly shift wavelengths or anything. But it certainly appears as green to the eye.

      (edited to add: Okay, you made me curious. Was I just hallucinating that green color? So I did some quick research. It appears the wavelength of light *does* shift in some storms. This is a quote from Scientific American: "Gallagher found that the dominant wavelength of light was green in several severe thunderstorms and that the color was independent of the terrain underneath the storm." And this, from the same article: "Researchers remain undecided about the exact mechanisms that cause the sky to appear green in certain thunderstorms, but most point to the liquid water content in the air."

      So it seems it actually does turn green. Or else Scientific American is lying to me.)

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