Changes

'''Altocumulus''' clouds are small, puffy-shaped clouds that usually appear in regularly-spaced groups at [[altitude]]s of 8,000 to 20,000 feet.  They indicate a layer of atmospheric [[instability]] and, when observed in the morning during the spring or summer months, indicate a very high probability of precipitation in the afternoon.

'''Altocumulus''' clouds are small, puffy-shaped clouds that usually appear in regularly-spaced groups at [[altitude]]s of 8,000 to 20,000 feet.  They may occur in a layer of atmospheric [[instability]], and generally have a banded or rippled appearance.  When observed in the morning during the spring or summer months, indicate a very high probability of precipitation in the afternoon.

=== external links ===

=== external links ===

* [http://ww2010.atmos.uiuc.edu/(Gh)/wwhlpr/altocumulus.rxml?hret=/guides/mtr/cld/cldtyp/home.rxml University of Illinois cloud catalog]

* [http://ww2010.atmos.uiuc.edu/(Gh)/wwhlpr/altocumulus.rxml?hret=/guides/mtr/cld/cldtyp/home.rxml University of Illinois cloud catalog]