User blog comment:The Woolly Howl/How do Raincutters produce water-resistant fireballs?/@comment-24990845-20150531131038

That's not fully true. Big amounts of fire will take longer for rain to estinguish. It didn't say completely rain-resistant. They will go out eventually. But can hold up for a longer time. Perhaps fireballs would be bettere. But never the less, many things in HTTYD are not scientifically proven. Like how can the Night Fury develop so much energy to create plasma explosions.