@WestofMars Harmattan related?
@WestofMars Period from Nov to March when the winds kick strong off the Sahara desert. In severe events can lead to respiratory problems for people outside and can affect air traffic as well
@Macparrot Oh! I Googled that. I don't think so? They were in the middle of the ocean when they turned. (But thank you for the explanation; now I know why air quality has been poor.)
@WestofMars It can be really bad. Spent a week there back in the 80's (GET OFF MY LAWN!) and spent significant time once back inside coughing and trying to get all the dirt accumulated out of my nose
@Macparrot This must be why they told them to bring inhalers, "Even if you haven't needed it in years."
@Macparrot Harmattan?