ha·boob 
(hə-bb)
(hə-bb)n.
A penetrating sandstorm or dust storm with violent winds, occurring chiefly in Arabia, North Africa, and India.
[Arabic habūb, strong wind, from habba, to rush, blow; see hbb in the Appendix of Semitic roots.]
haboobhaboob enveloping
Khartoum, Sudan
April 29, 2007