(meteorobs) Fireballs

[Stuart Saunders]

Robert, you say "February is the start of the fireball season, when an  
abundance of fireballs seem to occur. This lasts well into April and  
seems to occur mostly during the early evening hours."

I am wondering are these from one or a few radiants, or are they  
random? What might cause random fireballs in a particular season, and  
in the evening - contrary to earths motion, etc?

I would be grateful for any thoughts.

Stuart.