Yep. Two enemies were close by, I used a firebolt and I did 13 damage PLUS the possibility of an additional 2d4, using an attack which is supposed to do 1 to 10. Direct Hit plus 2x Fire surface plus 2x Burning tick.

One of the enemies died from burning and another one could have if I hadn't finished it off with a different attack. The total possible damage range from that one attack is 5 to 20, on an attack which by rules, is supposed to do less than 5 damage 40 percent of the time.