Update: This is a photo taken by Deb Schradieck at Good Harbor Beach. She got her photo at an earlier stage than mine, before the hole had started to fill in, so you can really see how amazing it looked.
I stumbled upon a fallstreak or hole punch cloud on the internet earlier this week. It was something I had never seen before and thought it was pretty cool looking. Today, this one was hanging right over Good Harbor Beach!
A fallstreak hole, also known as a hole punch cloud, punch hole cloud, skypunch, canal cloud or cloud hole, is a large circular or elliptical gap that can appear in cirrocumulus or altocumulus clouds. Such holes are formed when the water temperature in the clouds is below freezing but the water has not frozen yet due to the lack of ice nucleation (see supercooled water). When ice crystals do form it will set off a domino effect, due to the Bergeron process, causing the water droplets around the crystals to evaporate: this leaves a large, often circular, hole in the cloud.[1]
It is believed that the introduction of large numbers of tiny ice crystals into the cloud layer sets off this domino effect of evaporation which creates the hole. The ice crystals can be formed by passing aircraft which often have a large reduction in pressure behind the wing- or propeller-tips. This cools the air very quickly, and can produce a ribbon of ice crystals trailing in the aircraft’s wake. These ice crystals find themselves surrounded by droplets, grow quickly by the Bergeron process, causing the droplets to evaporate and creating a hole with brush-like streaks of ice crystals below it. The articles by Westbrook and Davies (2010)[2] and Heymsfield et al. (2010) [3] explain the process in more detail, and show some observations of their microphysics and dynamics. Such clouds are not unique to any one geographic area and have been photographed from many places.
Because of their rarity and unusual appearance, as well as very little exposure in media, fallstreak holes have been mistaken for or attributed to unidentified flying objects.[4]
From Wikipedia
E.J. Lefavour
Good Morning Gloucester 
Thank you ej…always…
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cool!
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I saw this in Beverly today, I haven’t seen any formation like this before.
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I noticed it today while driving home on 128. It was a cool sight.
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I actually first saw it on 128 in Danvers and was sorry I was driving and couldn’t get a shot of it. Imagine my surprise when I pulled up at Good Harbor Beach and there it was!
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I saw it today over Good Harbor Beach. It was a perfect oval in the sky. Thanks for the explanation.
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Amazing EJ! The sky has been so wild lately! Thank you for sharing this!
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Wow! And thanks for the explanation, EJ, but I prefer to believe it’s magic.
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The pictures are wonderful and exciting. I have been around more than 80 years and NEVER seen or heard of this formation. Is there any way I could buy a printed copy …..enlarged? There is nothing like being in the right place at the right time!
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