OLL30 (Thunderstorm shape)

f (R U R2) U’ (R’ U R2 U’ R’) f’ (vertical thunderstorm shape & a discontinuous colored corner is on the back side)

F U (R U2′ R’ U’) (R U2′ R’ U’) F’ (vertical thunderstorm shape & a discontinuous colored corner is on the front side)

I was using the symmetrical procedure for the first one of OLL29 (M U’ L’ U’ L U L F’ L’ F M’), and the different algorithm for the second one (F R’ F R2 U’ R’ U’ R U R’ F2).

I checked some web site and found those which seemed to me better for my fingers, and changed them.

The second one has one turn more than the previous one, but I liked the repetitive moves (R U2′ R’ U’).