We covered bizarre cloud formations
before,
but there seems to be no end of them... The tsunami-looking fog
wave was strange enough, and now these "gateways in
the sky" - circular absence of clouds, with wispy tendrils reaching out
of them...
Punch
Hole Clouds may appear as a circular or oval holes in a layer of
supercooled clouds; sometimes they assume a form of a perfect circle and
persist for quite a long time, drifting together with the cloud layer.
One explanation seems to blame the air traffic (the jet
contrail
intersections) combined with a thermal inversion (a circular motion of a
rising warm air). Here is one, observed over the Gunnison Valley in
Colorado:
(image credit: Cuerling)Another
strange hole in the cloud, reported from Mobile, Alabama USA, Dec. 2003
(and covered by
BBC
News):
(images credit: Joel Knain
and Weatherlings)Photo
taken in Melbourne, Australia in 2003:
(images via)It
seems both rising and sinking air currents can create the same effect.
Sometimes a very stable, uniform layer of high-altitude clouds can get
"punched though" by a pocket of cold air, which sinks toward the ground -
creating the circular hole formation.
(image credit: Neil
Johnson(The Tampa Tribune) and Gwen Swinburne)These
"cloud holes" can look like the footprints of some celestial being (UFO
enthusiasts rejoice!) or can be amazingly round, like this pair observed
in Gallatin, Tennessee by Wayne Carter:
(image credit: Wayne
Carter)NASA takes satellite images of this
phenomenonNASA Terra satellite equipped with the Moderate
Resolution Imaging Spectroradiometer (MODIS) has captured these images
over Acadiana area in southern Louisiana - a splattering of round holes
actually stretched over several states: Oklahoma, Arkansas, Louisiana,
and Texas. Some were elongated, some appeared to have smaller clouds
inside them.
"This strange phenomenon resulted from a
combination of cold temperatures, air traffic, and perhaps unusual
atmospheric stability. The cloud blanket on January 29 consisted of
supercooled clouds. Supercooled clouds contain water droplets that
remain liquid even though the temperature is well below freezing, and
such clouds are not unusual. As aircraft from the Dallas-Fort Worth
airport passed through these clouds, tiny particles in the exhaust came
into contact with the supercooled water droplets, which froze instantly.
The larger ice crystals fell out of the cloud deck, leaving behind the
“holes,” while the tiniest ice particles in the center remained aloft." (
source)

(images credit: Jeff
Schmaltz, NASA)Cloud Vortices: another "holey"
sky phenomenaTheodore von Karman's "Cloud Vortices" are
something else, again: they form when the wind encounters a barrier -
such as the Aleutian islands, in this case - and the flowing eddies of
cloud create a weird pattern. The image you see below was photographed
from the International Space Station, and the animation shows the double
row of vortices, which rotate opposite from each other.
(image credit: NASA)
(image credit: Cesareo de la Rosa Siqueira, via)More
Incredible and Fascinating Clouds...that make our sky
worthy to look at from time to time (those who only look at the computer
monitor, take note). Here is an extremely strong thunderstorm cloud
that brewed over northwest Calgary:

(images credit: D'Arcy
Norman)Another supercell cloud in Alberta skies, this
time over Edmonton:
(image credit: Greg)'shrooms:
(image credit: Cloud Appreciation
Society)Another cloud "wave", similar to the one over
South Dakota Badlands (see
here):
(image credit: Barry Slade)Roll clouds... get
into a small plane and start "surfing" them! -
(image credit: Russell
White)
(image credit: Dan
Bush)A Cloud Angel -
(sent in by Dave)Two light-sabers get crossed
in the sky:
(image credit: Olga Olgert)A
fire-breathing rabbit-dragon, and a fantastic cloud edge:
(original unknown)A "genie", coming out of a
bottle:
(image credit: Raoul Pop)Spectacular
lenticulars in the morning light... and a whole "pancake" stack of
them, over at Mount Rainier in Washington:

(image credit: Arco
Images, Alamy, National Geographic)Stormy:
(image via)An
interesting rainbow effect:
(original unknown)Nacreous clouds - good page
about them, with lots of
info:
(image credit: Atmospheric Optics)Prepare
to get squashed, Earthlings! -
(image credit: Sam
LeBarron)
You need to be a member of One Vibration to add comments!
Join One Vibration