Something is obviously kicking Harvey out to the ENE, but the only thing I see is a shortwave trough deepening in TX and OK that could be doing the deed. However, with as relatively shallow as the core of Harvey has been, I'm a little surprised that Harvey would respond that much.
(if this belongs in another forum, feel free to move it, but I am very curious)
-------------------- M. S. Earth and Atmospheric Sciences, Georgia Tech - May 2020
U. Arizona PhD Student