Much of #Karen's long-term evolution depends on its positioning relative to the building ridge and how strong it is at the start of the turn. A weak storm could just get sheared off. A more robust vortex could survive to strengthen later.

We have an abundance of time to watch. https://t.co/AskUH7YhjW

— Dr. Levi Cowan (@TropicalTidbits) September 23, 2019