Altocumulus (Ac)

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Altocumulus Latin:(High Mass) This cloud resembles Stratocumulus but at a higher level forming in patches and rolling form, sometimes with or without gaps. Altocumulus forms from decaying Cumulonimbus normally late in the day when the daytime convection ceases or Cumulus tops spread out. At times rain falls from Altocumulus and can evaporate before reaching the ground these streaks are known as Virga and are seen streaming from below the cloud base.