User blog:The Woolly Howl/How do Raincutters produce water-resistant fireballs?

It is mentioned that Raincutters can eject fire balls that are powerful in both rainy and sunny weather. The fireballs are equally powerful. I don't think that it is scientifically possible to have fire like these. Even large amounts of fire weaken when in contact with water. How is this feat made possible by the Raincutter?