Tuesday, November 11, 2014

Weekend Walkabout: A Hole in the Sky

We have had very turbulent weather here lately with cold fronts moving back and forth, and sunrise/sunset has been amazing! But I had never seen this before:
A Hole in the Sky, MR, November 2014
This is a fallstreak hole, also known as a skypunch. Here is the closeup:
Skypunch, MR, Nov 2014
These holes in the sky are fairly rare, and are caused by supercooled water droplets that evaporate rapidly because they go through something called a Bergeron Process when they finally freeze. Hey, that's what the Science Guys and Gals tell me, I don't get it either. But the effect, especially at sunrise or sunset, is gorgeous.

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