20190815 Supercellgenesis NW of Manhattan, KS

This storm developed along a warm front northwest of Tuttle Creek Lake and started to spawn pulsing updrafts. I couldn't tell when the pulses occurred from the appearance of the cloud base but the anvils more clearly reveal the leftward expansion of updraft air as the pulses reached the tropopause. Eventually one big pulse changed the storm into a supercell. The cloud base revealed one large wall cloud. The forward flank precipitation core began to obscure the right flank of the updraft.