I wanted to clarify that we have harmattan every year for awhile during the dry season (Nov-Mar). But we rarely see it in March--especially after such heavy rains.
Apparently the Jos airport has been shut down for the past four days due to low visibility. Some of our friends were planning to take a domestic flight today, but had to change their plans due to the heavy harmattan. They drove 3-4 hours to the capital of Abuja so they could catch a flight from there.
I'll try to make this my last post about the weather for awhile!