dust storm

from WordNet (r) 3.0 (2006)

dust storm
    n 1: a windstorm that lifts up clouds of dust or sand; "it was
         the kind of duster not experienced in years" [syn: {dust
         storm}, {duster}, {sandstorm}, {sirocco}]

from The Collaborative International Dictionary of English v.0.48

dust storm \dust" storm`\ (d[u^]st"st[^o]rm`), n.
   A strong windstorm that lifts particles of dust or dry soil
   into the air and blows them around, covering land or objects
   with a thick layer of dust. Dust storms may occur in arable
   areas during periods of drought; when a similar storm occurs
   in a desert area, such a storm is called a {sandstorm}.
   [PJC]