According to the NWS website, a fallstreak hole forms when, "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.
Next, there are three mid-level clouds:
altocumulus, altostratus, and nimbostratus.
He takes photographs of airplane contrails and
altocumulus cloud patterns and posts them on Facebook as evidence that the government is spraying us with chemicals and conducting surveillance.
For an ice-precipitating
altocumulus cloud, the range-resolved circular polarization measurements show the same transition from ice virga at the cloud base to a dense, liquid state at the cloud top as do those for linear polarization.
Scenes are marked by the New Zealand countryside's clear, high light and soft
altocumulus clouds, and the variegated landscapes are hemmed in on all sides by snow-capped mountains.
Altocumulus clouds - They are small mid-level layers or patches of clouds - called cloudlets - in the shape of rounded clumps.
Breitkreutz et al., "Stratus not
altocumulus: a new view of the yeast protein interaction network," PLoS Biology, vol.
He said the setting rays of the sun had been refracted by a range of
altocumulus clouds some 9,000 feet up, giving the stunning colour display.
This warmer influence is presently limited by dry air above it (the anticyclonic fringe) so the resultant
Altocumulus cloud band is not so thick, yet still turbulent enough to assist occasional lower-based cumulus cloud in its convective thrust.
Mid-level
altocumulus clouds can be banded or rounded in formation.
Leave the newspaper on the walk, the daily crapshoot-- a patch of sky still vague where Larry and all the others left on the threads of
altocumulus, or where you recall trivial faces from that '50s game show--Arlene Francis, Dorothy Kilgallen, Bennet Cerf, and John Daly on What's My Line?
In my eyes there are swells of
altocumulus and mist.
Altostratus and
altocumulus are the common mid-level clouds, explained Nasiri.
The dramatic clouds -
altocumulus lenticularis - are usually found in mountainous regions due to very specific atmospheric conditions.
Also occurring at these altitudes are the speckled layers of sweeping
altocumulus clouds--the mackerel sky'--another favourite with photographers.