Sahara dust in the Azores

It is not the first time that we witness this phenomenon here in our islands.

We are nicknamed the islands of "Bruma" by our mystical fog, that from time to time invade us, and now comes the dust of the Sahara desert in search of a little bit of our spotlight! 
These days, the sky turns brownish, with light tones, and makes a lot of people clean their glasses several times a day! 
This phenomenon can last for several days. 
It's nothing we're not used to, and it actually leaves a certain secrecy in the air...