You can also visualize these scenarios influencing #Henri's short-term motion by removing the TC vortex for different layer-mean winds.

Shallow-level steering (925-500 hPa) is slower to the WNW.
Deep-layer steering (850-250 hPa) is faster to the WSW.

Vortex depth matters. https://t.co/PjcNEnj7pi pic.twitter.com/mr80wPbjl9

— Philippe Papin (@pppapin) August 19, 2021