(Repost with my Anti-Google headers turned off so Googlers can see it)

On Tue, 10 Jul 2018 07:33:27 -0700 (PDT),
wrote:

> I've never experienced a dust storm here in NH, so this might be a
> stupid question, but, where does the dust come from? Are they
> only in areas near a desert? How far from a desert can this dust
> travel?
>
> Denise in NH

Arizona is mostly covered by dirt and sand in undeveloped areas
since it's so dry and hot (take a look at satellite phots and
compare the brown to the green). Unlike other states where there's
various types of native ground cover to secure the dirt to the
ground. Lose dirt and sand make for dust storms during high winds.
And high winds often precede a rain storm rolling in.

-sw