Stratocumulus cloud
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A group of stratocumulus clouds hanging low over the mountain valley seen from the summit of Mount Kinabalu. | |
Altitude | Below 2,400 m (8,000 ft) |
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Precipitation Cloud? | Not usually |
Abbreviation | Sc |
A stratocumulus cloud belongs to a class characterized by large dark, rounded masses, usually in groups, lines, or waves, the individual elements being larger than those in altocumuli, and the whole being at a lower altitude, usually below 2,400 m (8,000 ft). Weak convective currents create shallow cloud layers because of drier, stable air above preventing continued vertical development.
Generally stratocumuli bring no precipitation or only drizzle / light rain or snow at best. However, these clouds are often seen at either the front or tail end of worse weather, so may indicate storms to come, in the form of thunderheads or gusty winds.
These are similar in appearance to altocumuli and are often mistaken for such. A simple test to distinguish these is to compare the size of individual masses or rolls: when pointing your hand in the direction of the cloud, if the cloud is about the size of your thumb, it is altocumulus; if it is the size of your entire hand, it is stratocumulus.
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[edit] External links
Wikimedia Commons has media related to: |
- National Science Digital Library - Stratocumulus
- Muriel Martin Online - Stratocumulus Cloud
- WW2010 University of Illinois - Stratocumulus Clouds
- BBC Weather Centre - Types of Cloud - Stratocumulus and Altocumulus
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High Clouds (Family A): | Cirrus (Ci) • Cirrus uncinus • Cirrus Kelvin-Helmholtz colombia • Cirrostratus (Cs) • Cirrocumulus (Cc) • Pileus • Contrail |
Middle Clouds (Family B): | Altostratus (As) • Altostratus undulatus • Altocumulus (Ac) • Altocumulus undulatus • Altocumulus mackerel sky • Altocumulus castellanus cloud • Altocumulus lenticularis |
Low Clouds (Family C): | Stratus (St) • Nimbostratus (Ns) • Cumulus humilis (Cu) • Cumulus mediocris (Cu) • Stratocumulus (Sc) |
Vertical Clouds (Family D): | Cumulonimbus (Cb) • Cumulonimbus incus • Cumulonimbus calvus • Cumulonimbus with mammatus • Cumulus congestus • Pyrocumulus • Pyrocumulonimbus |