Haboob -- been there, done that, had to brush my teeth after.  When I lived
outside of Phoenix (Avondale), a nice brown cloud Haboob came ripping through
one day.  My poor little ash tree started leaning from the gale and one of
the wires came off.  I ran outside and grabbed the tree, holding the tree
upright with one arm while trying to rewire the supports with my free hand.
No fun.  Well, actually, it was kind of fun, except for ingesting lots of
dust.  After it passed, I got the tree fixed and took a long shower.  The
dirt mixed with the shower water looked like chocolate milk.  Not quite as
tasty.  The cool part is watching the front of the cloud move in over Phoenix
from the news helicopters.  Looks like a brown tidal wave.  You're lucky you
had a clean one!

Bill Marshall
85 GL Tiico
Bradenton FL (traded the Haboob for hurricanes)