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'Holepunch' clouds fill BC skies during rare weather phenomenon News
What are they? A fallstreak hole (also known as a "hole punch cloud") is a large circular or elliptical gap that can appear in cirrocumulus or altocumulus clouds. How do they form? High to mid level clouds, such as altocumulus, are often composed of tiny water droplets that are much colder than freezing, but have yet to freeze.
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Holepunch clouds over SoCal Today's Image EarthSky
Hole-punch clouds occur within two types of common cloud layers: 1) cirrocumulus or 2) altocumulus clouds. Cirrocumulus clouds form row after row of small puffball clouds. Altocumulus clouds are similar, except think less puffy and more patchy.
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Hole Punch Clouds Over Maryland (Updated with new info.) Dan's Wild Wild Science Journal AGU
A hole punch cloud observed on August 17, 2008 near Linz, Austria. Credit: H. Raab, NASA The process seems easy enough, but what could introduce these necessary particles (cloud condensation.
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Is the truth out there? Rare hole punch cloud appears over Illinois in pictures Strange Sounds
Fallstreak hole
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Amazing 'hole punch' phenomenon spotted in clouds over Bay Area
Hole Punch Clouds Mobile, AL - Observed on December 11, 2003 Photo courtesy of Gary Beeler (former Warning Coordination Meteorologist) What Happened? During the early afternoon of December 11, 2003, a strange and unusual cloud formation occurred over the Mobile, AL area. The name."Hole Punch Clouds". Has it happened before? Yes.
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Amazing 'hole punch' phenomenon spotted in clouds over Bay Area
Scientists have studied hole-punch clouds since the 1940s and have long suspected that planes play a role in their formation. (See pictures of a potentially new type of cloud .) Now, ice.
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Rare Hole Punch Cloud Unbelievable Info
The reason a fallstreak hole is sometimes called a "hole punch cloud" doesn't need much clarification: It looks like someone used a massive hole-puncher on a cloud. In order to create one,.
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Is the truth out there? Rare hole punch cloud appears over Illinois in pictures Strange Sounds
Clouds are made of water droplets, and hole punch clouds—also known as fallstreak hole clouds—occur when part of that cloud falls out, leaving behind a hole. That opening in the cloud.
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Fallstreak phenomenon 13 pictures of 'holepunch' clouds in B.C. CTV News
These rare cloud formations, called "hole-punch clouds", develop in altocumulus cloud layers and are often the result of airplanes passing through the layer of clouds. So, how does this.
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Picture of the Day Rare Hole Punch Cloud Spotted in Australia » TwistedSifter
Fallstreak holes, also known as hole-punch clouds, are the result of cold air temperatures and atmospheric instability. Viewed from below, it can appear as if part of the cloud is falling out of the sky. As it turns out, that is actually what's happening.
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'Hole punch clouds' seen in San Antonio sky. Here's why.
Fallstreak holes, also known as hole punch clouds, are a "supercool" phenomenon, where large circular or elliptical gaps appear in mid- to high-level cirrocumulus or altocumulus clouds.
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Is the truth out there? Rare hole punch cloud appears over Illinois in pictures Strange Sounds
A hole punch cloud visible over Omarama, New Zealand in May 2006. Credit: Dollsworth Web sites on the Internet are now devoted to collecting pictures of hole punch clouds from around the world.
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Fallstreak hole Unusual 'holepunch' cloud captured in East Midlands BBC News
Fallstreak (also known as hole punch) clouds are formed when the water temperature in the cloud is below freezing but has not frozen. When sections of the water start to freeze, the surrounding water vapor will also freeze and descend. This leaves a rounded hole in the cloud. Fallstreak clouds von Kármán Vortices
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Amazing 'hole punch' phenomenon spotted in clouds over Bay Area
A fallstreak hole (also known as a cavum, [1] hole punch cloud, punch hole cloud, skypunch, cloud canal or cloud hole) is a large gap, usually circular or elliptical, that can appear in cirrocumulus or altocumulus clouds.
![](https://strangesounds.org/wp-content/uploads/2017/12/illinois-hole-punch-cloud-3.jpg)
Is the truth out there? Rare hole punch cloud appears over Illinois in pictures Strange Sounds
This hole-punch cloud appeared in the sky over Mobile, Alabama, in 2003. Scientists believe that airplanes create these formations by cooling air and creating ice as they travel through clouds.
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Fallstreak phenomenon 13 pictures of 'holepunch' clouds in B.C. CTV News
Whether a cloud formation becomes a hole-punch or canal depends on the thickness of the cloud layer, the air temperature, and the degree of horizontal wind shear. Both descending and ascending aircraft—including jets and propeller planes—can trigger hole-punch and canal clouds. The nearest major airports in the images above include Miami.