Something the good folks here might find interesting.
Before jumping to conclusions, correlation is not causation, this might have just been a very surprising coincidence but it's interesting to consider a connection.
Of course galactic cosmic rays would be modulated by solar activity(solar wind)
POSSIBILITY OF THE INFLUENCEOF COSMIC RAYS ON TROPICAL CYCLONES
Can short-period variations in the cosmic ray ﬂux inﬂuence such atmospheric formations as tropical
cyclones? The authors of  present a detailed statisti-cal analysis of the possibilities of the correlation
between variations in solar geomagnetic activity and cosmic rays, on the one hand, and cyclonic activity in
the Paciﬁc and Atlantic basins near the Mexican coast.Based on analysis of 119 typhoons and hurricanes in
these regions over a time interval of 55 yr, they found the following regularity: for seven hurricanes of cate-
gory 5, the Forbush depression of cosmic rays was recorded two days before the cyclone reached the level
of category 1 hurricane. The author of  suggested that Hurricane Katrina was generated by the magnetic
storm on August 24, 2005. The main mechanism was anincrease in the baric contrast in the illuminated hemi-
sphere and a pressure decrease at tropical latitudes. We can agree that the magnetic storm might have inﬂuenced
the development of Hurricane Katrina. However, the forcing mechanism suggested by