Finally, there are clouds that appear to be banded (like the altocumulus
stamp in the center of the "Cloudscapes" sheet on page 1).
The fine weather continued during the next day, although with a partially cloudy sky (altocumulus
) and westerly winds (about 10 m/s).
Cold front sequence: Cirrus Cirrocumulus Altocumulus
Stratocumulus Cumulonimbus (summer) or nimbostratus (winter) Warm front sequence: Cirrus Cirrostartus Cirrocumulus Altocumulus
Nimbostratus or cumulonimbus Stratus Now that both clouds and pressure systems are part of our vocabulary, we can get to more complete forecasts while examining a sky with different cloud types.
by Wednesday and thickened by Thursday with a thin Altocumulus
layer as its trademark.
They noticed a hole in an otherwise solid deck of altocumulus
clouds in the forward imagery, as well as a burst of snow that extended to the ground.
The atmosphere to the south of the ITD is usually moist aiding the formation of clouds at low altitude including fog while the atmosphere to the north of the ITD is usually dry and dusty preventing the formation of clouds except altocumulus
and cirrus at high level [37-39].
Divided into sections devoted to low, middle, and high clouds, this field guide to the skies includes such details as the ferocious, storm-producing capabilities of the cumulonimbus, the UFO-like appearance of the altocumulus
lenticularis, and the halo-forming tendencies of the cirrostratus.
, altostratus and nimbostratus are medium-level clouds--between 2,500 and 5,500 metres.
With a 95-knot jet high above the area, the strong shear spread the humid mid-level layer into transverse bands of thick altocumulus
. Visibility below was quite good as you'd expect with an unstable airmass.
In contrast to previous IOPs, however, the last two IOPs were relatively cloudy, with up to 8/10 cirrus coverage and some altocumulus
clouds (Table 2).
The thick and rippling milky puffs of midlevel, altocumulus
clouds that often herald the approach of wetter weather are sometimes known as a buttermilk sky.
In this study, the ANN classifier divided cloud/ surface into seven categories: sea, stratocumulus and altocumulus
, mixed cloud, altostratus and nimbostratus, cirrostratus, thick cirrus, and cumulonimbus using 2864 cloud samples manually collected by two experienced meteorologists in June, July, and August in 2007 from three FY-2C channels' (IR1,10.3-11.3 [micro]m; IR2,11.5-12.5 [micro]m; and WV 6.37.6 [micro]m) imagery.