This past Spring on April 19, the team came across a few supercells that fired off of the dryline in Central Oklahoma. This one was very healthy almost from the get go. Things we were looking at to indicate this was a wide/expanding base as well as a lowering base (this was a key indicator of increasing tornado potential). There was also consistent upward motion into the updraft. Additionally, the core was opaque and getting even more so with time. For us as storm chasers, the trends of a storm are the important things we are looking for. It's all of these things and more. A few things I look for as a sign of tornadoes becoming imminent are increasing and persistent rotation and similarly I'm looking for increasing and persistent upward motion into the base. Lightning also sometimes picks way up just before all of this happens. There's a lot that happens with storms and the trend is your friend (or foe). #weather #supercell #oklahoma #science #nature #stormchasing #stormchasers #tornado #wallcloud