Altostratus cloud
Encyclopedia : A : AL : ALT : Altostratus cloud
| style="text-align: center;" colspan="2" class="hiddenStructure"
! Altitude
|2,000-5,000 meters
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|- class="hiddenStructure"
! Altitude
| m ( ft) |- |- class="hiddenStructure" ! Appearance | sheet or layer |- |- class="hiddenStructure" ! Precipitation Cloud? | Wide areas of rain and snow |- |- class="hiddenStructure" ! Abbreviation | As |- | align=center colspan="2" style="white-space: nowrap;"| Altostratus is a cloud belonging to a class characterized by a generally uniform gray sheet or layer, lighter in color than nimbostratus and darker than cirrostratus. Means "high spread out." Compare also with lower altitude stratus clouds. Altostratus is caused by a large air mass that is lifted then condensed, usually by an incoming frontal system. Altostratus clouds can be found over wide-spread areas. Altostratus clouds are potentially dangerous, because they can cause ice accretion on aircraft.
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