Haboob Part II

I'm not sure when this was, but this gif was created by the National Weather Service in Lubbock, TX, from an event they obviously had in their county warning area. It explains how a haboob can form very well. In AZ, the monsoon season kicks in. You get thunderstorms around, cool rain falls..producing cool/dense outflow. The air spreads out, and if the downdraft is strong enough, results in rather high winds. Those high winds pick up sand/dust and create the haboob event (a strong sandstorm.)

edit: found the event on the Lubbock, TX NWS page:
http://www.srh.noaa.gov/lub/?n=events-2006-20060622_haboob

Click for a larger image

PHOTOS: Haboob moves across south Valley

PHOTOS: Haboob moves across south Valley

Dust/Sand storms are plowing into Arizona right now as Monsoon season kicks in. I don't know if this link/picture is time sensitive or not but hopefully you'll see it soon. If not, just do a google search for Haboob and enjoy :)