OLL42 (Thunderstorm shape)

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

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

I call this U-face figure Thunderstorm shape, because it resembles Lightning shape, but with an additional colored corner.

Both algorithms contain those of OLL45 (T shape).