Buddy Gauthier says that his normally-gentle bees got rough yesterday,
and blamed their behavior on lower barometric pressure in the prelude to
Storm Earl.
 
Odd.  I am also in South Louisiana.  I worked all my hives today, to
remove Apistan, and was struck by how docile they all were.  Even a
normally-mean wild swarm that I hived earlier this year.  And my
barometer also shows falling pressure.
 
Bees are bees.  Those who try to explain their behavior, beeware.
 
Walter Weller